Salesforce Platform Developer-I Sample Questions

Candidates who have knowledge, skills, and expertise in creating custom apps on the Lightning Platform should take the Salesforce Platform Developer-I test. The candidate will be able to leverage Apex, Visualforce, and fundamental Lightning Components to build new business logic and interfaces to expand Salesforce after passing this certification.  The article provides a list of Salesforce Platform Developer-I Sample Questions that cover core exam topics including –

• Salesforce Fundamentals: 7%
•  Data Modeling and Management: 13%
• Process Automation and Logic: 38%
• User Interface: 25%
• Testing, Debugging, and Deployment: 17%

Advanced Sample Questions

Which of the following is true about Apex in Salesforce?

• A. Apex is a strongly typed, object-oriented programming language.
• B. Apex is a scripting language that is interpreted at runtime.
• C. Apex is a markup language used to create web pages in Salesforce.
• D. Apex is a declarative language used to define business processes in Salesforce.

Answer: A. Apex is a strongly typed, object-oriented programming language.

Explanation: Apex is a strongly typed, object-oriented programming language that is used to develop custom business logic and integrations in Salesforce. It is compiled at runtime and runs on the Force.com platform.

What is the purpose of a test class in Salesforce?

• A. To test the functionality of an Apex class.
• B. To create new records in Salesforce.
• C. To perform data migrations in Salesforce.
• D. To define custom user interfaces in Salesforce.

Answer: A. To test the functionality of an Apex class.

Explanation: A test class is used to test the functionality of an Apex class. It creates test data, calls methods in the class being tested, and verifies that the results are correct. Test classes are required to achieve high code coverage in Salesforce.

Which of the following is a valid SOQL query in Salesforce?

• A. SELECT * FROM Account WHERE Name = ‘Acme’
• B. SELECT Name FROM Account WHERE CreatedDate > TODAY
• C. SELECT CreatedDate FROM Account WHERE BillingState IN (‘CA’, ‘NY’)
• D. SELECT Id, Name, (SELECT Quantity FROM Line_Items__r) FROM Order
• Answer: B. SELECT Name FROM Account WHERE CreatedDate > TODAY

Explanation: This SOQL query selects the Name field from the Account object, where the CreatedDate is greater than today.

Which of the following is true about a trigger in Salesforce?

• A. A trigger can only execute before a record is deleted.
• B. A trigger can execute before or after a record is inserted, updated, or deleted.
• C. A trigger can execute after a record is deleted, but not before.
• D. A trigger can execute before or after a record is updated, but not inserted or deleted.

Answer: B. A trigger can execute before or after a record is inserted, updated, or deleted.

Explanation: Triggers can execute before or after a record is inserted, updated, or deleted in Salesforce. They are written in Apex code and can automate business processes and customize application logic.

What is the purpose of a roll-up summary field in Salesforce?

• A. To summarize data from child records on a parent record.
• B. To group records together based on a common field.
• C. To calculate the average of a field on a set of records.
• D. To perform a calculation on a field when it is updated.

Answer: A. To summarize data from child records on a parent record.

Explanation: Roll-up summary fields are used to summarize data from child records on a parent record. They can calculate the sum, minimum, maximum, or count of a field on the child records.

Which of the following is true about Governor Limits in Salesforce?

• A. Governor Limits are used to limit the number of custom objects in a Salesforce org.
• B. Governor Limits are used to limit the amount of data that can be stored in a Salesforce org.
• C. Governor Limits are used to limit the amount of code that can be executed in a single transaction in Salesforce.
• D. Governor Limits are used to limit the number of users that can access a Salesforce org.

Answer: C. Governor Limits are used to limit the amount of code that can be executed in a single transaction in Salesforce.

Explanation: Governor Limits are a set of limits that Salesforce imposes on Apex code to prevent runaway code from consuming excessive resources. They limit the amount of code that can be executed in a single transaction, such as the number of database operations, the amount of heap size, and the number of SOQL queries.

Option A, B, and D are incorrect, as they do not correctly describe the purpose of Governor Limits.

Which of the following is true about a lookup relationship in Salesforce?

• A. A lookup relationship is a one-to-one relationship between two objects.
• B. A lookup relationship is a one-to-many relationship between two objects.
• C. A lookup relationship is a many-to-one relationship between two objects.
• D. A lookup relationship is a many-to-many relationship between two objects.

Answer: C. A lookup relationship is a many-to-one relationship between two objects.

Explanation: A lookup relationship is a relationship between two objects in which each record in one object can be related to multiple records in the other object. This relationship is defined by a lookup field on the child object that references the parent object.

Option A is incorrect, as it describes a master-detail relationship, which is a one-to-one relationship between two objects.

Option D is incorrect, as it describes a many-to-many relationship, which is not supported in Salesforce using a lookup relationship.

Which of the following is true about a validation rule in Salesforce?

• A. A validation rule is used to create new records in Salesforce.
• B. A validation rule is used to update existing records in Salesforce.
• C. A validation rule is used to prevent invalid data from being entered in a record.
• D. A validation rule is used to perform a calculation on a field in Salesforce.

Answer: C. A validation rule is used to prevent invalid data from being entered in a record.

Explanation: A validation rule is used to prevent users from entering invalid data in a record. It is a formula that evaluates the data entered in a record and displays an error message if the data does not meet the specified criteria.

Option A, B, and D are incorrect, as they do not correctly describe the purpose of a validation rule.

Which of the following is true about a trigger handler in Salesforce?

• A. A trigger handler is a type of Salesforce user.
• B. A trigger handler is a pattern for structuring Apex code that is used to manage triggers.
• C. A trigger handler is a type of record in Salesforce.
• D. A trigger handler is a feature of the Salesforce Lightning Design System.

Answer: B. A trigger handler is a pattern for structuring Apex code that is used to manage triggers.

Explanation: A trigger handler is a pattern for structuring Apex code that is used to manage triggers. It separates the trigger code from the business logic code and makes the code easier to maintain and modify.

Basic Sample Questions

Q1)Which statement causes an error in the Apex compiler in Salesforce Platform Developer-I ?

• A. Map<Id,Leas> lmap = new Map<Id,Lead>([Select ID from Lead Limit 8]);
• B. Date d1 = Date.Today(), d2 = Date.ValueOf(‘2018-01-01’);
• C. Integer a=5, b=6, c, d = 7;
• D. List<string> s = List<string>{‘a’,’b’,’c’);

Correct Answer: D

Q2)What are the Lightning Component framework’s two advantages? (Select two.)

• A. When creating pages, it decreases complexity, but not when creating applications.
• B. It offers an event-driven design for improved component decoupling.
• C. It encourages the use of pre-built components that are appropriate for desktop and mobile devices to speed up development.
• D. Lightning components make PDF production faster.

Correct Answer: B and C

Q3)A list of generic sObjects is supplied as a parameter to a method.What should the developer do to decide which object type to cast each sObject (for instance, Account, Lead, or Contact) in Salesforce Platform Developer-I ?

• A. To identify the sObject type, use the first three characters of the sObject ID.
• B. To obtain the sObject token, use the getSObjectType function on each generic sObject.
• C. To obtain the sObject name, use the getSObjectName function on the sObject class.
• D. Cast the sObject into one of the three sObject types using a try-catch construct.

Correct Answer: B

Q4)What should a developer use to implement a case submission for the approval process automatically in Salesforce Platform Developer-I ?

• A. An Assignment Rule
• B. Scheduled Apex
• C. Process Builder
• D. A Workflow Rule

Correct Answer: C

Q5)The sales person needs to be able to quickly check how many reduced products are contained in the quote’s line items while examining a quote. What steps should a developer take to fulfil this demand in Salesforce Platform Developer-I ?

• A. Build a trigger on the Quote object to ask questions about the discounted Quote Line Items’ Quantity field.
• B. Develop a workflow rule on the Quote Line Item object that, when the item is discounted, modifies a field on the parent Quote.
• C. Create a roll-up summary field on the Quote object that, when filtered to include only discounted Quote Line Items, executes an SUM on the quote Line Item Quantity field.
• D. Create a formula field on the Quote object that, while filtering exclusively for discounted Quote Line Items, does an SUM on the Quote Line Item Quantity field.

Correct Answer: C

Q6)In order to write a test class that simulates an OpportunityLineItem trigger, a Developer needs access to the organization’s standard price book. Which approach enables use of the price book?

• A. To obtain the standard price book ID, use Test.getStandardPricebookId().
• B. Remove the current standard pricing book using @IsTest(SeeAllData=true).
• C. To load a common price book, use Test.loadData() and a Static Resource.
• D. Make the standard pricing book visible to the test method by using @TestVisible.

Correct Answer: A

Q7)Which two Apex data types can be utilised to dynamically refer to a Salesforce record ID? (Select two.)

• A. ENUM
• B. sObject
• C. External ID
• D. String

Correct Answer:– A and D

Q8)Where can a developer use the Developer Console log inspector to determine how long each process in a transaction takes?

• A. The Stack Tree panel’s Performance Tree tab
• B. The Stack Tree panel’s Execution Tree tab
• C. The Execution Overview panel’s Timeline tab
• D. The Execution Overview panel’s Save Order tab

Correct Answer: C

Q9)Which two platform features correspond to the MVC architecture’s Controller section? (Select two.)

• A. Process Builder actions
• B. Workflow rules
• C. Standard objects
• D. Date fields

Correct Answer: A and B

Q10)A developer must test the integration of the billing system. The developer calculates that the test data will require a total data storage of roughly 2 GB after looking at the quantity of transactions needed for the test. The integration testing does not need production data. Which two environments satisfy the test requirements? (Select two.)

• A. Developer Sandbox
• B. Full Sandbox
• C. Developer Edition
• D. Partial Sandbox
• E. Developer Pro Sandbox

Correct Answer: B and D

Q11)The developer of a time management programme wishes to give users of the app access to the total number of hours for each timecard. A timecard and a timecard entry are related in a master-detail relationship. What declarative method should the developer employ to complete this?

• A Visualforce page that calculates and displays the total amount of hours for a timecard
• B. A Roll-Up Summary field on the Timecard Object that figures out how many hours are in that timecard’s entries.
• C. An Apex trigger that utilises an Aggregate Query to compute the hours for a certain timecard and stores the results in a custom field 
• D. A Process Builder process that updates a field on the timecard when a timecard entry is produced

Correct Answer: B

Q12)APEX heap limit failures in a trigger are encountered by a developer. Which two techniques ought the developer to employ to prevent this mistake? (Select two.)

• A. The temporary keyword should be used when declaring variables.
• B. When updating connected objects, query and save fields from the associated object in a collection.
• C. After using a collection, remove it or set it to null.
• D. Instead of placing a collection of huge query results into a loop and iterating through it, use SOQL for loops.

Correct Answer: A and D

Q13)Which method ought to be applied in order to supply test data for a test class?

• A. Query for existing records in the database.
• B. Execute anonymous code blocks that create data.
• C. Use a test data factory class to create test data.
• D. Access data in @TestVisible class variables.

Correct Answer: C

Q14)Which strategy should a developer use to add a “Maintenance Plan” with a “Annual Subscription” to each opportunity after an opportunity is closed?

• A. Create a PriceBookEntry record that adds an OpportunityLineItem trigger.
• B. Create a trigger for an OpportunityLineItem record to be added.
• C. Create a PriceBookEntry record-adding Opportunity trigger.
• D. Create an OpportunityLineItem record-adding trigger for opportunities.

Correct Answer: D

Q15)Which of the following claims regarding the use of the @testSetup annotation in Apex test classes is true? (Select two.)

• A. The @isTest(SeeAllData=True) annotation precludes the use of the @testSetup annotation.
• B. For all test methods in a class, test data is only inserted once.
• C. Individual test methods cannot edit records created in the @testSetup function.
• D. The @testSetup method is automatically called before to the execution of each test method in the test class.

Correct Answer: A and D

Q16)What prerequisites must a class meet in order to be utilised as a unique Visualforce controller?

• A. Any Apex top-level class whose function Object() { [native code] } returns a PageReference
• B. Every top-level Apex class extending a PageReference
• C. Any top-level Apex class with a default function Object() { [native code] } that accepts no arguments.
• D. Each and every top-level Apex class that adheres to the controller interface

Correct Answer: D

Q17)Displaying and modifying Case records necessitates a Visualforce page that integrates both generic and specific functionality from an Apex class named myControllerExtension. Which apex:page> attribute(s) should the Visualforce page have to properly implement controller functionality?

• A. controller=ג€Caseג€ and extensions=ג€myControllerExtensionג€
• B. extensions=ג€myControllerExtensionג€
• C. controller=ג€myControllerExtensionג€
• D. standardController=ג€Caseג€ and extensions=ג€myControllerExtensionג€

Correct Answer: D

Q18)A freshly hired developer finds that the case object has several triggers. What factors should the developer take into account when using triggers?

• A. The trigger execution sequence must be determined by developers.
• B. The creation date and time determines the trigger execution order.
• C. The trigger being tested must be specified in unit tests.
• D. For the same sObject, the trigger execution sequence is not guaranteed.

Correct Answer: D

Q19)How can a developer stop a trigger from recursing?

• A. Use a ג€one trigger per objectג€ pattern.
• B. Use a static Boolean variable.
• C. Use a trigger handler.
• D. Use a private Boolean variable.

Correct Answer: B

Q20)Which three things can formula fields be used for? (Select three.)

• A. Create a link to a particular record using the HYPERLINK function.
• B. Use the PRIORVALUE function to show a field’s previous value.
• C. Use the NOW method to see if a datetime field value has passed.
• D. Use the VLOOKUP method to retrieve and show a field value from a different object.
• E. Use the IF function to choose which of three photos to display.

Correct Answer: A, C and E