As organization increasingly rely on Salesforce to drive their growth and efficiency, the demand for skilled platform developers has exponentially increased. Whether you’re an aspiring developer or an experienced professional seeking validation, the Platform Developer-I certification is your golden ticket to stand out in the competitive job market and become a true Salesforce trailblazer. The Salesforce Platform Developer-I topic-wise Free Questions will challenge your knowledge, problem-solving abilities, and development skills, ensuring you’re well-prepared to tackle the exam with confidence. From Apex coding and data modeling to customizing applications and integrating solutions, our blog covers all the key topics you need to know.
Throughout this blog, we will cover a wide array of topics, including Apex programming, Visualforce pages, data modeling, SOQL queries, and much more. Each question is meticulously designed to simulate real-world scenarios, drawing from the expertise of seasoned Salesforce professionals. So, let’s dive into the world of Salesforce Platform Developer-I and begin!
1. Developer Basics
This topic equips learners with essential knowledge and skills for Salesforce development. It covers multi-tenant concepts and design frameworks like MVC architecture and Lightning Component Framework, empowering developers to create efficient and scalable applications. Declarative versus programmatic customizations are explored, enabling learners to identify common use cases and employ best practices while considering governor limits, formula fields, and roll-up summaries to optimize application performance.
Additionally, learners gain proficiency in creating and accessing appropriate data models, encompassing objects, fields, relationships, and external IDs, ensuring data integrity and efficient retrieval. Moreover, the topic delves into data import and export options and considerations, preparing learners to manage data effectively across various development environments.
Topic: Multi-Tenant Concepts and Design Frameworks
Question 1: What does the term “multi-tenant” refer to in the context of Salesforce?
A) It refers to the ability of multiple developers to collaborate on a single Salesforce org.
B) It refers to the capability of Salesforce to support multiple clients or customers on a shared infrastructure.
C) It refers to the capability of Salesforce to handle multiple authentication methods for user access.
D) It refers to the ability of Salesforce to automatically scale and distribute resources across multiple servers.
Explanation: B) It refers to the capability of Salesforce to support multiple clients or customers on a shared infrastructure. In a multi-tenant architecture, multiple organizations (tenants) share the same instance of the application, but their data is kept separate and secure.
Question 2: Which design framework is commonly used in Salesforce for building user interfaces?
A) Model-View-Controller (MVC) architecture
B) Data Access Object (DAO) pattern
C) Object-Relational Mapping (ORM) framework
D) Representational State Transfer (REST) architecture
Explanation: A) Model-View-Controller (MVC) architecture is commonly used in Salesforce for building user interfaces. It separates the application into three components: the Model (data and business logic), the View (user interface), and the Controller (manages user interactions and updates the Model).
Question 3: What is the purpose of the Lightning Component Framework in Salesforce?
A) It is a design framework used to build custom data models for multi-tenant applications.
B) It is a programming language used for writing custom Apex code in Salesforce.
C) It is a design framework used to build responsive and dynamic user interfaces.
D) It is a data integration tool used to synchronize Salesforce data with external systems.
Explanation: C) It is a design framework used to build responsive and dynamic user interfaces. The Lightning Component Framework allows developers to create reusable components for building modern and interactive user interfaces in Salesforce.
Question 4: What is the role of a “Controller” in the Model-View-Controller (MVC) architecture?
A) It manages the data and business logic of the application.
B) It is responsible for rendering the user interface.
C) It handles user interactions and updates the Model and View accordingly.
D) It manages the database operations and data access.
Explanation: C) It handles user interactions and updates the Model and View accordingly. In the Model-View-Controller (MVC) architecture, the Controller receives user input, processes it, and updates both the Model (data and business logic) and the View (user interface).
Question 5: How does multi-tenancy benefit organizations using Salesforce?
A) Multi-tenancy allows organizations to customize the Salesforce platform according to their specific needs.
B) Multi-tenancy reduces the cost of infrastructure and maintenance by sharing resources among multiple organizations.
C) Multi-tenancy allows organizations to manage their data on separate instances of the Salesforce platform.
D) Multi-tenancy provides organizations with dedicated hardware and software resources for better performance.
Explanation: B) Multi-tenancy reduces the cost of infrastructure and maintenance by sharing resources among multiple organizations. Organizations can benefit from economies of scale and cost savings by using a shared infrastructure while still maintaining data separation and security.
Topic: Declarative vs. Programmatic Customizations
Question 1: What are “governor limits” in Salesforce?
A) They are limitations on the number of records that can be queried in a single transaction.
B) They are limitations on the number of custom objects that can be created in an organization.
C) They are limitations on the number of users that can access a Salesforce org.
D) They are limitations on the number of fields that can be added to a Salesforce object.
Explanation: A) They are limitations on the number of records that can be queried in a single transaction. Salesforce enforces governor limits to ensure efficient use of resources and prevent performance issues caused by long-running or resource-intensive transactions.
Question 2: When should declarative customizations be preferred over programmatic customizations in Salesforce?
A) Declarative customizations should always be preferred as they are easier to implement.
B) Declarative customizations should be preferred when the required functionality is not supported by Apex code.
C) Programmatic customizations should be preferred for their ease of maintenance and upgradeability.
D) Declarative customizations should be preferred for simple configurations and when no custom code is required.
Explanation: D) Declarative customizations should be preferred for simple configurations and when no custom code is required. Declarative customizations allow administrators to configure features without writing code, making them easier to maintain and modify.
Question 3: What are “formula fields” in Salesforce?
A) They are fields that allow users to write complex formulas for querying data in Salesforce reports.
B) They are fields that display the results of a calculation based on values from other fields or expressions.
C) They are fields used for storing the results of programmatic operations in Salesforce.
D) They are fields used for importing and exporting data between Salesforce and external systems.
Explanation: B) They are fields that display the results of a calculation based on values from other fields or expressions. Formula fields allow users to perform calculations and display the computed values in a read-only format on records.
Question 4: What is a “roll-up summary” field in Salesforce?
A) It is a field that allows users to summarize data from related records in a parent-child relationship.
B) It is a field that rolls up the values of all fields in a Salesforce object to create a summary report.
C) It is a field used for summarizing data in Salesforce reports.
D) It is a field used for rolling up the number of records in a related list.
Explanation: A) It is a field that allows users to summarize data from related records in a parent-child relationship. Roll-up summary fields are commonly used to perform calculations on child records and display the summarized results on the parent record.
Question 5: How do governor limits affect programmatic customizations in Salesforce?
A) Governor limits restrict the number of custom objects that can be created in a Salesforce org.
B) Governor limits impose a limit on the number of lines of code that can be written in Apex classes.
C) Governor limits control the number of records that can be updated or deleted in a single transaction.
D) Governor limits enforce limitations on the amount of data that can be stored in custom fields.
Explanation: B) Governor limits impose a limit on the number of lines of code that can be written in Apex classes. Apex code in Salesforce is subject to governor limits to ensure that the code is efficient and does not consume excessive resources. Developers need to consider these limits while writing programmatic customizations to avoid performance issues.
Topic: Data Model Creation and Access
Question 1: In Salesforce, what is an “object”?
A) An object is a user interface component used for displaying data.
B) An object is a programming construct used for declaring variables in Apex.
C) An object is a database table used for storing records in Salesforce.
D) An object is a template used for creating email templates in Salesforce.
Explanation: C) An object is a database table used for storing records in Salesforce. In Salesforce, objects represent various entities or data types, such as Accounts, Contacts, Opportunities, etc., and each object corresponds to a database table.
Question 2: What is a “field” in the context of Salesforce data modeling?
A) A field is a container for storing records in Salesforce.
B) A field is a property or attribute of an object used for storing data.
C) A field is a user interface component used for data entry in Salesforce.
D) A field is a type of formula used for performing calculations in Salesforce.
Explanation: B) A field is a property or attribute of an object used for storing data. Fields in Salesforce define the types of data that can be stored in an object and represent the individual data elements of a record.
Question 3: What is the purpose of defining relationships between objects in Salesforce data modeling?
A) Relationships between objects ensure that data is stored in a secure manner.
B) Relationships between objects allow users to perform complex calculations in Salesforce reports.
C) Relationships between objects define how records in one object are related to records in another object.
D) Relationships between objects determine the layout and design of Salesforce user interfaces.
Explanation: C) Relationships between objects define how records in one object are related to records in another object. By defining relationships, you can create links or associations between records in different objects, enabling data to be accessed and viewed in a related manner.
Question 4: What is an “external ID” in Salesforce data modeling?
A) An external ID is an identifier assigned to Salesforce orgs used for API authentication.
B) An external ID is a field that holds data from external systems in Salesforce.
C) An external ID is a unique identifier used for accessing Salesforce records via APIs.
D) An external ID is a special field used for identifying and updating records during data imports.
Explanation: D) An external ID is a special field used for identifying and updating records during data imports. External IDs are custom fields that contain unique identifiers from external systems, and they can be used to match records during data integration and data updates.
Question 5: How does creating relationships between objects benefit data modeling in Salesforce?
A) Creating relationships allows data to be stored in separate databases for better performance.
B) Creating relationships reduces the storage space required for records in Salesforce.
C) Creating relationships enables data to be organized and connected, supporting complex data queries.
D) Creating relationships automatically encrypts sensitive data in Salesforce records.
Explanation: C) Creating relationships enables data to be organized and connected, supporting complex data queries. By creating relationships between objects, you can establish links between records, allowing you to perform queries and retrieve related data efficiently. This supports better data organization and access in Salesforce.
2. Understanding Process Automation and Logic
This topic provides learners with the essential skills for automating processes and implementing logical operations in Salesforce. Learners will identify the capabilities of declarative process automation features, empowering them to leverage the platform’s automation tools effectively. This also covers the fundamentals of Apex programming, including declaring variables, constants, and methods, and using modifiers and Apex interfaces to build robust and efficient code.
Learners will gain proficiency in utilizing Apex control flow statements and writing SOSL, SOQL, and DML statements to query and manipulate data in Apex. Additionally, learners will understand the relationship between Apex transactions, the save order of execution, and the potential for recursion and cascading to design more sophisticated and controlled logic.
Topic: Declarative Process Automation Features
Question 1: Which of the following are capabilities of declarative process automation features in Salesforce?
A) Writing custom Apex code for complex automation tasks.
B) Defining business processes using point-and-click tools like Process Builder and Flow.
C) Implementing data validation rules using Apex triggers.
D) Creating custom objects and fields in the Salesforce org.
Explanation: B) Defining business processes using point-and-click tools like Process Builder and Flow. Declarative process automation features in Salesforce allow administrators and developers to automate business processes without writing custom code. Process Builder and Flow are examples of point-and-click tools that enable the automation of processes.
Question 2: What is the primary purpose of using Process Builder in Salesforce?
A) Process Builder is used for creating custom objects and fields in Salesforce.
B) Process Builder is used for writing custom Apex code to automate processes.
C) Process Builder is used to define automated processes using a visual interface.
D) Process Builder is used for creating and managing Salesforce reports.
Explanation: C) Process Builder is used to define automated processes using a visual interface. Process Builder is a point-and-click tool that allows you to create and manage automated processes in Salesforce by defining triggers, criteria, and actions using a visual workflow.
Question 3: Which of the following actions can be performed using Flow in Salesforce?
A) Flow allows you to write complex Apex code for automating processes.
B) Flow allows you to create and manage custom objects and fields in Salesforce.
C) Flow allows you to define and execute visual workflows for process automation.
D) Flow allows you to import and export data between Salesforce and external systems.
Explanation: C) Flow allows you to define and execute visual workflows for process automation. Flow is a powerful tool that lets you create and manage visual workflows to automate complex business processes without writing custom code.
Question 4: What is the key benefit of using declarative process automation features over writing custom Apex code?
A) Declarative automation allows you to perform complex calculations and data manipulations.
B) Declarative automation is more scalable and efficient than custom Apex code.
C) Declarative automation eliminates the need for user input in process execution.
D) Declarative automation allows you to access and modify the Salesforce database.
Explanation: B) Declarative automation is more scalable and efficient than custom Apex code. Declarative process automation features, such as Process Builder and Flow, allow you to create and manage business processes without writing code. This approach is more user-friendly, scalable, and easier to maintain than writing custom code for process automation.
Question 5: Which of the following process automation features in Salesforce is best suited for handling complex business logic and automation requirements?
A) Process Builder
B) Flow
C) Custom Apex code
D) Validation rules
Explanation: C) Custom Apex code. While Process Builder and Flow are excellent for point-and-click automation, complex business logic and automation requirements may require the flexibility and customization of custom Apex code. Custom Apex code allows developers to implement complex algorithms, integrate with external systems, and perform more advanced operations not achievable with declarative features.
Topic: Variables, Constants, Methods, and Apex Interfaces
Question 1: In Apex, what is the purpose of declaring variables?
A) Declaring variables allows you to define custom Apex classes and interfaces.
B) Declaring variables allows you to define constants for use in Apex code.
C) Declaring variables allows you to store and manipulate data in memory during program execution.
D) Declaring variables allows you to import and export data between Salesforce and external systems.
Explanation: C) Declaring variables allows you to store and manipulate data in memory during program execution. Variables in Apex are used to hold data values, such as numbers, text, dates, objects, etc., and are essential for performing calculations and processing data.
Question 2: What is the purpose of using modifiers (e.g., public, private, static) when declaring variables or methods in Apex?
A) Modifiers control the visibility of variables and methods within the same class.
B) Modifiers define the data type of variables and methods.
C) Modifiers control the order in which variables and methods are executed in Apex code.
D) Modifiers allow you to encrypt sensitive data stored in variables and methods.
Explanation: A) Modifiers control the visibility of variables and methods within the same class. Modifiers such as public, private, protected, and global determine the access level of variables and methods within a class. For example, a public variable can be accessed from other classes, while a private variable can only be accessed within the same class.
Question 3: What are “constants” in Apex?
A) Constants are special methods used for exception handling in Apex.
B) Constants are custom classes that cannot be modified after being defined.
C) Constants are variables whose values cannot be changed after they are assigned.
D) Constants are Apex interfaces used for implementing polymorphism in Apex code.
Explanation: C) Constants are variables whose values cannot be changed after they are assigned. In Apex, constants are defined using the “final” modifier, and once a value is assigned to a constant, it cannot be modified throughout the program execution.
Question 4: What is the purpose of using methods in Apex?
A) Methods are used for declaring constants and variables in Apex code.
B) Methods are used for defining custom objects and fields in Salesforce.
C) Methods are used for encapsulating functionality and performing actions in Apex code.
D) Methods are used for importing and exporting data between Salesforce and external systems.
Explanation: C) Methods are used for encapsulating functionality and performing actions in Apex code. Methods in Apex are blocks of code used for defining behavior or actions that can be performed on objects or variables. They allow you to encapsulate logic and reuse it throughout the program.
Question 5: What is an Apex interface used for?
A) Apex interfaces are used for declaring variables and constants in Apex code.
B) Apex interfaces are used for importing and exporting data between Salesforce and external systems.
C) Apex interfaces are used for implementing polymorphism and enabling multiple inheritance in Apex code.
D) Apex interfaces are used for declaring exception handling mechanisms in Apex.
Explanation: C) Apex interfaces are used for implementing polymorphism and enabling multiple inheritance in Apex code. Apex interfaces define a contract that a class must adhere to, allowing multiple classes to share common behavior and enabling polymorphism in Apex code.
Topic: SOSL, SOQL, and DML Statements in Apex
Question 1: Which of the following statements is used to perform a text-based search in multiple objects in Salesforce?
A) SOSL (Salesforce Object Search Language)
B) SOQL (Salesforce Object Query Language)
C) DML (Data Manipulation Language)
D) SQL (Structured Query Language)
Explanation: A) SOSL (Salesforce Object Search Language) is used to perform a text-based search in multiple objects in Salesforce. SOSL allows you to search for a keyword across different object types and retrieve matching records.
Question 2: Which statement is used to retrieve data from Salesforce objects in Apex?
A) SOSL (Salesforce Object Search Language)
B) SOQL (Salesforce Object Query Language)
C) DML (Data Manipulation Language)
D) SQL (Structured Query Language)
Explanation: B) SOQL (Salesforce Object Query Language) is used to retrieve data from Salesforce objects in Apex. SOQL is similar to SQL but tailored specifically for querying Salesforce data.
Question 3: What is the purpose of the DML (Data Manipulation Language) in Apex?
A) DML is used for searching and retrieving data from Salesforce objects in Apex.
B) DML is used for inserting, updating, deleting, and restoring records in Salesforce objects.
C) DML is used for defining data models and relationships between objects in Apex.
D) DML is used for defining Apex classes and interfaces.
Explanation: B) DML (Data Manipulation Language) is used for inserting, updating, deleting, and restoring records in Salesforce objects. It allows you to manipulate data in Salesforce database tables (objects) programmatically.
Question 4: Which statement is used to insert new records into a Salesforce object in Apex?
A) INSERT
B) UPDATE
C) DELETE
D) UPSERT
Explanation: A) INSERT is used to insert new records into a Salesforce object in Apex. For example, you can use the INSERT statement to add new records to the Account object.
Question 5: What is the purpose of exception handling in Apex?
A) Exception handling is used for querying and retrieving specific data from Salesforce objects.
B) Exception handling is used for declaring custom Apex classes and interfaces.
C) Exception handling is used for capturing and handling errors that occur during program execution.
D) Exception handling is used for defining visual workflows in Salesforce.
Explanation: C) Exception handling is used for capturing and handling errors that occur during program execution. In Apex, exception handling allows you to gracefully handle unexpected errors or situations and provide appropriate responses to users or administrators.
Topic: Exception Handling in Apex
Question 1: What is the purpose of exception handling in Apex?
A) Exception handling is used for querying and retrieving specific data from Salesforce objects.
B) Exception handling is used for declaring custom Apex classes and interfaces.
C) Exception handling is used for capturing and handling errors that occur during program execution.
D) Exception handling is used for defining visual workflows in Salesforce.
Explanation: C) Exception handling is used for capturing and handling errors that occur during program execution. In Apex, exception handling allows you to gracefully handle unexpected errors or situations and provide appropriate responses to users or administrators.
Question 2: What are custom exceptions in Apex?
A) Custom exceptions are predefined system errors that cannot be modified or handled in Apex code.
B) Custom exceptions are standard errors provided by Salesforce for handling specific scenarios.
C) Custom exceptions are user-defined errors that can be raised and handled by Apex code.
D) Custom exceptions are system-generated errors that occur during DML operations.
Explanation: C) Custom exceptions are user-defined errors that can be raised and handled by Apex code. Developers can create custom exception classes to represent specific error conditions in their applications and handle them appropriately in their code.
Question 3: Which keyword is used to raise a custom exception in Apex?
A) RAISE EXCEPTION
B) THROW EXCEPTION
C) THROW
D) RAISE
Explanation: C) THROW is used to raise a custom exception in Apex. The THROW statement allows you to explicitly raise an exception in your code and provide meaningful error messages to users or log error details for troubleshooting.
Question 4: How can exception handling help in improving user experience in Salesforce applications?
A) Exception handling can prevent users from performing certain operations in Salesforce.
B) Exception handling can display error messages to users and guide them on how to fix the issues.
C) Exception handling can hide system errors and prevent users from accessing Salesforce data.
D) Exception handling can restrict user access to specific objects and fields in Salesforce.
Explanation: B) Exception handling can display error messages to users and guide them on how to fix the issues. When exceptions occur, providing informative error messages can help users understand what went wrong and how to correct the problem, improving user experience and reducing frustration.
Question 5: How can developers handle exceptions in Apex?
A) Exceptions are automatically handled by Salesforce, and developers don’t need to do anything.
B) Developers can handle exceptions by using TRY-CATCH blocks to catch and respond to specific exceptions.
C) Developers can handle exceptions by disabling certain features in Salesforce to prevent errors.
D) Developers can handle exceptions by modifying the Salesforce database schema.
Explanation: B) Developers can handle exceptions by using TRY-CATCH blocks to catch and respond to specific exceptions. In Apex, you can use TRY-CATCH blocks to encapsulate code that might throw exceptions, and then handle those exceptions with appropriate actions, such as displaying error messages or performing fallback operations.
3. Understand the User Interface
The User Interface section empowers learners to create dynamic and secure interfaces for Salesforce applications. They will gain proficiency in displaying content and modifying Salesforce data using Visualforce pages, along with appropriate controllers or extensions, tailored to specific scenarios. Security is prioritized as learners discover how to prevent user interface and data access vulnerabilities, ensuring robust protection for Salesforce applications.
Custom user interface components, including Lightning Components, Flow, and Visualforce, are discussed, enabling learners to leverage these tools to create intuitive and user-friendly interfaces. Lastly, learners will implement Apex to work seamlessly with various page components, such as Lightning Components, Flow, Next Best Actions, and more, providing a comprehensive skill set for developing compelling user interfaces.
Topic: Visualforce Pages and Controllers
Question 1: What is Visualforce in Salesforce?
A) Visualforce is a markup language used for defining the layout and structure of Salesforce data.
B) Visualforce is a programming language used for building custom objects and fields in Salesforce.
C) Visualforce is a user interface framework used for creating custom pages and components in Salesforce.
D) Visualforce is a data query language used for retrieving data from Salesforce objects.
Explanation: C) Visualforce is a user interface framework used for creating custom pages and components in Salesforce. It allows developers to define the layout and structure of Salesforce data and build custom user interfaces using a markup language.
Question 2: What is a Visualforce page controller in Salesforce?
A) A Visualforce page controller is an administrator role in Salesforce responsible for managing Visualforce pages.
B) A Visualforce page controller is a user interface component used for displaying data in Salesforce.
C) A Visualforce page controller is an Apex class that provides the logic and data for a Visualforce page.
D) A Visualforce page controller is a custom object used for storing data in Salesforce.
Explanation: C) A Visualforce page controller is an Apex class that provides the logic and data for a Visualforce page. It acts as a bridge between the Visualforce page and the data it displays or manipulates, allowing developers to write custom code to control the behavior of the page.
Question 3: How can Visualforce pages be used in Salesforce?
A) Visualforce pages are used for defining object relationships in Salesforce.
B) Visualforce pages are used for querying and retrieving data from Salesforce objects.
C) Visualforce pages are used for creating custom user interfaces and displaying Salesforce data.
D) Visualforce pages are used for defining validation rules in Salesforce.
Explanation: C) Visualforce pages are used for creating custom user interfaces and displaying Salesforce data. Developers use Visualforce pages to build customized layouts, forms, and components to present data and interact with users.
Question 4: What is a Visualforce page extension in Salesforce?
A) A Visualforce page extension is a managed package used for extending Salesforce functionality.
B) A Visualforce page extension is a JavaScript library used for enhancing user interactions in Salesforce.
C) A Visualforce page extension is an Apex class that extends the behavior of a Visualforce page.
D) A Visualforce page extension is a custom object used for storing metadata related to Visualforce pages.
Explanation: C) A Visualforce page extension is an Apex class that extends the behavior of a Visualforce page. It allows developers to add custom logic and actions to a Visualforce page by associating the page with a controller or extension class.
Question 5: When would you use a Visualforce page extension in Salesforce?
A) To define the layout and structure of Salesforce data on a Visualforce page.
B) To query and retrieve data from Salesforce objects for display on a Visualforce page.
C) To add custom logic and actions to a Visualforce page beyond the capabilities of the standard controller.
D) To create custom Lightning web components for use in Salesforce.
Explanation: C) To add custom logic and actions to a Visualforce page beyond the capabilities of the standard controller. Visualforce page extensions allow you to extend the functionality of a Visualforce page by writing custom Apex code to handle specific interactions or data processing tasks that the standard controller cannot achieve.
Topic: Lightning Component Framework
Question 1: What is the Lightning Component framework in Salesforce?
A) The Lightning Component framework is a programming language used for building custom objects and fields in Salesforce.
B) The Lightning Component framework is a user interface framework used for creating custom pages and components in Salesforce.
C) The Lightning Component framework is a data query language used for retrieving data from Salesforce objects.
D) The Lightning Component framework is a markup language used for defining the layout and structure of Salesforce data.
Explanation: B) The Lightning Component framework is a user interface framework used for creating custom pages and components in Salesforce. It allows developers to build reusable and responsive user interfaces using JavaScript on the client-side and Apex on the server-side.
Question 2: What are the benefits of using the Lightning Component framework in Salesforce?
A) The Lightning Component framework allows developers to write complex Apex code for business logic.
B) The Lightning Component framework provides a user interface for managing Salesforce data relationships.
C) The Lightning Component framework improves application performance and provides a modern, responsive user experience.
D) The Lightning Component framework allows developers to define database schemas for Salesforce objects.
Explanation: C) The Lightning Component framework improves application performance and provides a modern, responsive user experience. By utilizing client-side technologies, the Lightning Component framework reduces server round-trips and enhances the user interface for a faster and smoother user experience.
Question 3: What types of content can be contained in a Lightning web component in Salesforce?
A) Lightning web components can contain only Apex classes for server-side logic.
B) Lightning web components can contain HTML, CSS, and JavaScript for client-side rendering and behavior.
C) Lightning web components can contain only Visualforce markup for defining the layout of the page.
D) Lightning web components can contain only data models and relationships between objects.
Explanation: B) Lightning web components can contain HTML, CSS, and JavaScript for client-side rendering and behavior. Lightning web components are a modern web standard-based framework that uses HTML, CSS, and JavaScript to define the user interface and behavior of the component.
Question 4: How do Lightning web components improve performance in Salesforce?
A) Lightning web components reduce the need for validation rules and workflow rules in Salesforce.
B) Lightning web components increase the server load by executing complex Apex code.
C) Lightning web components reduce server round-trips, leading to faster load times and better user experience.
D) Lightning web components eliminate the need for using custom metadata types in Salesforce.
Explanation: C) Lightning web components reduce server round-trips, leading to faster load times and better user experience. By utilizing client-side technologies, Lightning web components can perform many actions and logic without requiring server interactions, resulting in faster page loading and reduced server load.
Question 5: What is the role of Apex in working with Lightning Components in Salesforce?
A) Apex is used for defining the layout and structure of Lightning Components in Salesforce.
B) Apex is used for querying and retrieving data from Salesforce objects to populate Lightning Components.
C) Apex is used for handling client-side interactions and user interface rendering in Lightning Components.
D) Apex is used for configuring the styling and design of Lightning Components.
Explanation: B) Apex is used for querying and retrieving data from Salesforce objects to populate Lightning Components. Lightning Components often require data from Salesforce objects to display relevant information to users, and Apex is used to perform the data queries and pass the data to the components for rendering.
Topic: Implementing Apex for Page Components
Question 1: What are the various types of page components that can be implemented using Apex in Salesforce?
A) Apex can be used to implement custom objects and fields in Salesforce.
B) Apex can be used to define the layout and structure of Visualforce pages in Salesforce.
C) Apex can be used to implement various types of page components, including Lightning Components, Flow, and Next Best Actions.
D) Apex can be used to define the relationships between different objects in Salesforce.
Explanation: C) Apex can be used to implement various types of page components, including Lightning Components, Flow, Next Best Actions, etc. Apex provides the logic and behavior for these components, and developers can use Apex classes to define the actions and interactions for each type of component.
Question 2: What is the role of Apex in Lightning Components?
A) Apex is used for configuring the user interface and design of Lightning Components.
B) Apex is used for querying and retrieving data from Salesforce objects for use in Lightning Components.
C) Apex is used for defining the layout and structure of Lightning Components.
D) Apex is used for writing client-side JavaScript to enhance the behavior of Lightning Components.
Explanation: B) Apex is used for querying and retrieving data from Salesforce objects for use in Lightning Components. In many scenarios, Lightning Components require data from Salesforce to display relevant information, and Apex is used to perform the data queries and return the data to the components.
Question 3: What is a Flow in Salesforce?
A) Flow is a data model used for defining the relationships between different objects in Salesforce.
B) Flow is a user interface component used for displaying data in Salesforce.
C) Flow is a sequence of screens and logic that executes a business process in Salesforce.
D) Flow is a JavaScript library used for enhancing user interactions in Lightning Components.
Explanation: C) Flow is a sequence of screens and logic that executes a business process in Salesforce. Flows allow developers to create guided visual experiences for users, guiding them through a series of screens to collect data, perform actions, or make decisions.
Question 4: How can Apex be used with Flow in Salesforce?
A) Apex is used for defining the user interface and layout of Flow screens in Salesforce.
B) Apex is used for creating custom objects and fields that are used in a Flow.
C) Apex is used for querying and manipulating data in Salesforce that is used in a Flow.
D) Apex is used for handling user interactions and behavior in Flow screens.
Explanation: C) Apex is used for querying and manipulating data in Salesforce that is used in a Flow. Flows often require data from Salesforce objects to perform actions or make decisions, and Apex can be used to retrieve or update the necessary data during the flow execution.
Question 5: What is the purpose of Next Best Actions in Salesforce?
A) Next Best Actions are custom objects used for storing metadata related to Visualforce pages.
B) Next Best Actions are user interface components used for displaying data in Salesforce.
C) Next Best Actions are recommendations provided to users based on their interactions and data in Salesforce.
D) Next Best Actions are JavaScript libraries used for enhancing user interactions in Lightning Components.
Explanation: C) Next Best Actions are recommendations provided to users based on their interactions and data in Salesforce. Next Best Actions analyze data about users, their preferences, and past interactions to provide personalized suggestions and guidance on the next steps or actions they should take.
4. Understand Testing, Debugging, and Deployment
This section will equip learners with the essential skills for ensuring code quality, debugging issues, and deploying Salesforce applications effectively. They will gain proficiency in writing and executing tests for triggers, controllers, classes, flows, and processes, using a variety of test data sources to validate the functionality of their code. Furthermore, the topic also covers the effective use of Salesforce Developer tools, including Salesforce DX, Salesforce CLI, and Developer Console, empowering learners to streamline their development processes and work more efficiently.
Additionally, the course covers the environments, requirements, and deployment process for deploying code and associated configurations, ensuring a smooth and seamless deployment experience. By mastering the concepts presented in this section, learners will be well-prepared to ensure code reliability, troubleshoot issues effectively, and deploy their Salesforce applications with confidence, enhancing the overall quality and efficiency of their development processes.
Topic: Writing and Executing Tests
Question 1: What is the purpose of writing tests for triggers, controllers, classes, flows, and processes in Salesforce?
A) Writing tests is a mandatory requirement for deploying any Apex or Flow code to production.
B) Writing tests ensures that the code works as expected and does not introduce any unintended errors.
C) Writing tests allows developers to bypass validation rules and workflow rules during development.
D) Writing tests helps Salesforce administrators to review and approve the code before deployment.
Explanation: B) Writing tests ensures that the code works as expected and does not introduce any unintended errors. In Salesforce, it is best practice to write unit tests for any custom code to validate its functionality and ensure that it behaves correctly under various scenarios.
Question 2: What are the various sources of test data that can be used to execute tests in Salesforce?
A) Test data must always be created manually by developers before executing tests.
B) Test data can be automatically generated by Salesforce during the testing process.
C) Test data can be inserted using the DataLoader tool before executing tests.
D) Test data can be created within the test methods themselves.
Explanation: D) Test data can be created within the test methods themselves. In Salesforce, test methods can create test data directly within the method using the Test class methods, such as Test.createAccount(), Test.createContact(), etc.
Question 3: How does test data isolation work in Salesforce?
A) Test data is shared across all test methods, ensuring consistency in test execution.
B) Test data is isolated within each test method, and changes made in one method do not affect others.
C) Test data is shared between test classes, ensuring consistent behavior across different tests.
D) Test data is isolated from production data, but changes made in one test method can affect others.
Explanation: B) Test data is isolated within each test method, and changes made in one method do not affect others. Salesforce ensures that each test method is executed in isolation and has its own separate data environment to avoid any dependencies between test methods.
Question 4: What is the purpose of using System.assert() statements in test methods?
A) System.assert() is used to display debugging messages during test execution.
B) System.assert() is used to pause the test execution and inspect variables and values.
C) System.assert() is used to perform assertions to verify expected outcomes in the test code.
D) System.assert() is used to generate random test data for test methods.
Explanation: C) System.assert() is used to perform assertions to verify expected outcomes in the test code. In test methods, developers use System.assert() to validate that the actual results of certain operations match the expected outcomes, ensuring that the code functions as intended.
Question 5: Which statement is true regarding the minimum code coverage required for Apex tests in Salesforce?
A) At least 10% of the code must be covered by tests for deployment to production.
B) At least 20% of the code must be covered by tests for deployment to production.
C) At least 75% of the code must be covered by tests for deployment to production.
D) All of the code must be covered by tests for deployment to production.
Explanation: C) At least 75% of the code must be covered by tests for deployment to production. Salesforce requires that a minimum of 75% of your Apex code is covered by tests, and for certain components (such as triggers), specific code coverage requirements may apply.
Topic: Salesforce Developer Tools
Question 1: What is Salesforce DX (Developer Experience)?
A) Salesforce DX is a tool used for debugging and monitoring system issues in Salesforce.
B) Salesforce DX is a web-based interface for building Lightning web components.
C) Salesforce DX is a set of developer tools and practices to enhance the Salesforce development experience.
D) Salesforce DX is a programming language used for creating custom objects and fields in Salesforce.
Explanation: C) Salesforce DX is a set of developer tools and practices to enhance the Salesforce development experience. It includes features like version control integration, scratch orgs, and improved deployment and testing capabilities.
Question 2: Which Salesforce Developer tool allows developers to work in a local development environment and use version control?
A) Salesforce CLI (Command-Line Interface)
B) Salesforce DX (Developer Experience)
C) Developer Console
D) Apex Data Loader
Explanation: A) Salesforce CLI (Command-Line Interface) allows developers to work in a local development environment, use version control systems like Git, and interact with Salesforce orgs for various development tasks.
Question 3: What is the role of Salesforce CLI (Command-Line Interface) in Salesforce development?
A) Salesforce CLI is used for executing Apex tests and generating test data for test methods.
B) Salesforce CLI is used for writing and executing anonymous Apex code snippets.
C) Salesforce CLI is used for deploying and retrieving metadata between Salesforce orgs and local files.
D) Salesforce CLI is used for defining and managing data models in Salesforce.
Explanation: C) Salesforce CLI is used for deploying and retrieving metadata between Salesforce orgs and local files. Salesforce CLI provides a powerful command-line interface to facilitate development tasks such as deploying and retrieving metadata, executing tests, and managing orgs.
Question 4: What is the primary benefit of using Salesforce DX (Developer Experience) in Salesforce development?
A) Salesforce DX provides a visual interface for creating and managing data models in Salesforce.
B) Salesforce DX simplifies the process of deploying customizations to production orgs.
C) Salesforce DX allows developers to work in isolated environments called scratch orgs for faster development and testing.
D) Salesforce DX includes a library of pre-built Lightning web components for rapid development.
Explanation: C) Salesforce DX allows developers to work in isolated environments called scratch orgs for faster development and testing. Scratch orgs are temporary and fully configurable orgs that enable developers to develop and test features in isolated environments, allowing for rapid and efficient development.
Question 5: What is the Salesforce Developer Console?
A) The Salesforce Developer Console is an integrated development environment (IDE) for writing and debugging Apex code.
B) The Salesforce Developer Console is a web-based tool for generating data and executing tests in Salesforce.
C) The Salesforce Developer Console is a programming language used for creating custom objects and fields in Salesforce.
D) The Salesforce Developer Console is a graphical interface for building Lightning web components.
Explanation: A) The Salesforce Developer Console is an integrated development environment (IDE) for writing and debugging Apex code. It provides a code editor, logs viewer, and interactive debugging features to assist developers in their Apex development tasks.
Topic: Debugging and Monitoring
Question 1: What is the approach to debugging system issues in Salesforce?
A) Debugging system issues involves checking logs only after an error occurs to identify the root cause.
B) Debugging system issues involves systematically analyzing log files, understanding error messages, and tracing the flow of execution to identify the root cause.
C) Debugging system issues involves sharing the code with other developers and asking for their assistance in finding the error.
D) Debugging system issues involves recompiling the code and redeploying it to the production org to resolve errors.
Explanation: B) Debugging system issues involves systematically analyzing log files, understanding error messages, and tracing the flow of execution to identify the root cause. In Salesforce, developers use logs and error messages to pinpoint issues, allowing them to fix bugs and ensure smooth operation of the system.
Question 2: What are the different types of flows, processes, and asynchronous and batch jobs that developers need to monitor in Salesforce?
A) Flow and process monitoring only applies to the Salesforce Classic user interface.
B) Monitoring flows, processes, and jobs is not necessary as Salesforce automatically handles these tasks.
C) Developers need to monitor flows, processes, asynchronous Apex jobs, and batch jobs to ensure smooth system operation and identify performance bottlenecks.
D) Developers only need to monitor batch jobs as they are the most resource-intensive processes.
Explanation: C) Developers need to monitor flows, processes, asynchronous Apex jobs, and batch jobs to ensure smooth system operation and identify performance bottlenecks. Monitoring these components helps developers to identify issues, such as long-running jobs or errors in automation processes, and take corrective actions.
Question 3: What is the purpose of monitoring flows and processes in Salesforce?
A) Monitoring flows and processes helps to identify performance bottlenecks in Apex code.
B) Monitoring flows and processes helps to track the usage of custom objects in Salesforce.
C) Monitoring flows and processes helps to identify issues, such as long-running flows or errors in automation processes, and take corrective actions.
D) Monitoring flows and processes helps to identify unoptimized queries in Apex code.
Explanation: C) Monitoring flows and processes helps to identify issues, such as long-running flows or errors in automation processes, and take corrective actions. Flows and processes are critical components of automation in Salesforce, and monitoring their performance ensures that they are running as intended.
Question 4: How can developers approach monitoring asynchronous Apex jobs in Salesforce?
A) Monitoring asynchronous Apex jobs involves tracking the usage of custom objects in Salesforce.
B) Monitoring asynchronous Apex jobs involves checking the overall system performance after running the jobs.
C) Monitoring asynchronous Apex jobs involves reviewing logs and system-generated emails to track the status and execution details of these jobs.
D) Monitoring asynchronous Apex jobs is not required as Salesforce automatically handles their execution.
Explanation: C) Monitoring asynchronous Apex jobs involves reviewing logs and system-generated emails to track the status and execution details of these jobs. Asynchronous Apex jobs, such as future methods and queueable Apex, execute in the background and generate log files that can be reviewed to check their status and execution results.
Final Words
In conclusion, we hope that the Salesforce Platform Developer-I Free Questions has provided a valuable resource to strengthen their skills and knowledge in Salesforce development. Throughout the blog, we covered essential topics, from authentication and user interface design to process automation, testing, debugging, and deployment.
By exploring these free questions, readers had the opportunity to understand the core concepts and best practices in Salesforce development. They gained insights into various aspects of declarative and programmatic customizations, as well as essential Apex programming techniques. Moreover, learners were exposed to the Lightning Component framework, which is fundamental for building modern and interactive interfaces.
Our focus on troubleshooting and deployment equipped readers with the expertise to ensure the robustness of their applications and successfully deploy them to production environments. Remember, the Salesforce platform is a powerful tool, and continuous learning and hands-on practice are key to unleashing its full potential.
