Alibaba Cloud Computing Associate Sample Questions
Advanced Sample Questions
What is the purpose of the Elastic Compute Service (ECS) in Alibaba Cloud Computing?
- A. To provide scalable and flexible computing resources for various applications.
- B. To store and manage large amounts of data.
- C. To host websites and web applications.
- D. To manage network and security configurations.
Answer: A. To provide scalable and flexible computing resources for various applications.
Explanation: ECS is a cloud-based service that provides scalable and flexible computing resources for various applications, including web and mobile applications, big data processing, and enterprise applications. It allows customers to quickly and easily provision virtual servers and configure computing resources to meet their business needs.
What is the advantage of using Auto Scaling in Alibaba Cloud Computing?
- A. It helps ensure high availability of resources during peak traffic.
- B. It provides security for sensitive data.
- C. It reduces costs by automatically shutting down idle resources.
- D. It simplifies network configuration management.
Answer: A. It helps ensure high availability of resources during peak traffic.
Explanation: Auto Scaling is a feature that automatically adjusts computing resources based on the demand of an application. This ensures high availability of resources during peak traffic, reducing downtime and improving performance. Additionally, it can help reduce costs by automatically shutting down idle resources when not needed.
What is the main purpose of the Object Storage Service (OSS) in Alibaba Cloud Computing?
- A. To store and manage large amounts of data.
- B. To host websites and web applications.
- C. To manage network and security configurations.
- D. To provide scalable and flexible computing resources.
Answer: A. To store and manage large amounts of data.
Explanation: OSS is a cloud-based data storage service that provides secure, scalable, and reliable storage for large amounts of data, including images, videos, audio, and other types of files. It provides a variety of features, such as data compression, data backup, and data transfer, to help customers manage and store their data more effectively.
What is the purpose of the Content Delivery Network (CDN) in Alibaba Cloud Computing?
- A. To improve the speed and reliability of website and application delivery.
- B. To store and manage large amounts of data.
- C. To host websites and web applications.
- D. To manage network and security configurations.
Answer: A. To improve the speed and reliability of website and application delivery.
Explanation: CDN is a network of servers that helps improve the speed and reliability of website and application delivery. By caching content in multiple locations around the world, CDN helps reduce latency and improve the user experience for customers accessing websites and applications from different locations.
What is the purpose of the Security Groups in Alibaba Cloud Computing?
- A. To provide security for sensitive data.
- B. To improve the speed and reliability of website and application delivery.
- C. To store and manage large amounts of data.
- D. To manage network and security configurations.
Answer: D. To manage network and security configurations.
Explanation: Security Groups are an important aspect of security in Alibaba Cloud Computing. They allow customers to define firewall rules that control incoming and outgoing traffic to and from cloud instances. This helps customers manage network and security configurations, improving the security of their applications and data.
What is the primary benefit of using Alibaba Cloud’s Relational Database Service (RDS)?
- A. To provide scalable and flexible computing resources.
- B. To host websites and web applications.
- C. To store and manage large amounts of structured data.
- D. To simplify database administration tasks.
Answer: D. To simplify database administration tasks.
Explanation: Alibaba Cloud’s Relational Database Service (RDS) provides a managed database service that helps simplify database administration tasks, such as database backup, database monitoring, and database maintenance. This allows customers to focus on developing their applications and managing their data, rather than managing the underlying database infrastructure.
What is the purpose of the Virtual Private Cloud (VPC) in Alibaba Cloud Computing?
- A. To provide a secure, isolated virtual network for cloud resources.
- B. To host websites and web applications.
- C. To store and manage large amounts of data.
- D. To simplify network configuration management.
Answer: A. To provide a secure, isolated virtual network for cloud resources.
Explanation: Virtual Private Cloud (VPC) is a secure, isolated virtual network within Alibaba Cloud that allows customers to create and manage cloud resources in a private network environment. This helps ensure the security and privacy of sensitive data and reduces the risk of unauthorized access to cloud resources.
What is the main benefit of using Alibaba Cloud’s Server Load Balancer (SLB)?
- A. To improve the performance and reliability of cloud applications.
- B. To host websites and web applications.
- C. To store and manage large amounts of data.
- D. To simplify network configuration management.
Answer: A. To improve the performance and reliability of cloud applications.
Explanation: Alibaba Cloud’s Server Load Balancer (SLB) is a cloud-based service that helps improve the performance and reliability of cloud applications by distributing incoming traffic across multiple servers. This helps ensure high availability and improves the user experience for customers accessing cloud applications.
What is the main advantage of using Alibaba Cloud’s Cloud Monitoring service?
- A. To monitor the performance and availability of cloud resources.
- B. To host websites and web applications.
- C. To store and manage large amounts of data.
- D. To simplify network configuration management.
Answer: A. To monitor the performance and availability of cloud resources.
Explanation: Alibaba Cloud’s Cloud Monitoring service provides real-time monitoring and analysis of cloud resources, including computing resources, network resources, and storage resources. This helps customers monitor the performance and availability of their cloud resources, ensuring their applications and data are always available and performing optimally.
What is the purpose of Alibaba Cloud’s ActionTrail service?
- A. To track and audit changes to cloud resources.
- B. To host websites and web applications.
- C. To store and manage large amounts of data.
- D. To simplify network configuration management.
Answer: A. To track and audit changes to cloud resources.
Explanation: Alibaba Cloud’s ActionTrail service provides a log service that tracks and audits changes to cloud resources, such as changes to computing resources, network resources, and storage resources. This helps customers monitor changes to their cloud resources, ensuring their security and compliance with regulatory requirements. Additionally, it provides a valuable tool for troubleshooting and auditing cloud resources.
Basic Sample Questions
Question 1 – It is possible to store large amounts of files in Alibaba Cloud’s object storage (Object Storage Service or OSS for short), but there is a limit on the number of files a bucket can hold.
- A. TRUE
- B. FALSE
Correct Answer: A
Question 2 – OSS traffic costs can be reduced by directly accelerating access to files stored in Alibaba Cloud CDN.
- A. TRUE
- B. FALSE
Correct Answer: A
Question 3 – The RDS for MySQL service is a PaaS, which means the user doesn’t have to worry about the runtime environment and underlying OS when creating an RDS instance. As for these, Alibaba Cloud will handle them.
- A. TRUE
- B. FALSE
Correct Answer: B
Question 4 – With Auto Scaling, unhealthy ECS instances can be automatically removed from the scaling group (this feature is called Elastic Self-Health). In spite of this, the user has to manually add a comparable number of new ECS instances to the scaling group after removing them.
- A. TRUE
- B. FALSE
Correct Answer: A
Question 5 – A powerful set of security services is provided by Alibaba Cloud (the same level of security services used by the Alibaba Group for its double 11 shopping festival). In order to use any of the security services, you must first pay.
- A. TRUE
- B. FALSE
Correct Answer: B
Question 6 – A static image or video can be stored using ECS along with ______, which can reduce the cost of storage.
- A. OSS
- B. Server Load Balancer
- C. RDS
- D. VPC
Correct Answer: A
Question 7 – A cloud disk is reliable since it uses _________ to store block-level data for ECS instances, ensuring 99.9999999% data security.
- A. a distributed file management system with 3 redundant copies
- B. a file system
- C. a double copy distributed system
- D. a Linux file system
Correct Answer: A
Explanation: It is possible to use a single ECS disk or several disks simultaneously to meet the needs of different application scenarios. There are two types of ECS disks: ephemeral SSD disks and cloud disks. Cloud disks provide 99.9999999% data reliability as opposed to ephemeral SSD disks, since they use a triplicate distributed system to store block-level data.
Question 8 – If we don’t change the instance type, which of the following ECS instance configurations cannot be changed?
- A. Mem size
- B. System disk size
- C. Data disk size
- D. Number of data disk
Correct Answer: B
Question 9 – During short periods of time, some applications may experience large fluctuations in traffic. The number of instances of ECS is automatically adjusted when _______ is used with ECS.
- A. Server Load Balancer
- B. RDS
- C. Auto Scaling
- D. OSS
Correct Answer: C
Reference: https://www.alibabacloud.com/help/doc-detail/25371.html
Question 10 – In order to save O&M costs, a company uses Alibaba Cloud SLB along with Auto Scaling simultaneously. However, since the company’s engineers lack relevant experience, they listed some precautions based on their understanding and asked you for guidance. You tell them that only _______________ is correct.
- A. Auto Scaling cannot be used with SLB instances without Health Check enabled
- B. Operating systems must be the same for all ECS instances under the same SLB instance
- C. There must be a Scaling Group for all backend servers under the same SLB instance
- D. A server needs to have the same configuration on all backend servers in a SLB instance
Correct Answer: A
Reference: https://www.alibabacloud.com/blog/comprehensive-upgrade-of-alibaba-cloud-auto-scaling-product_594112
Question 11 – In Server Load Balancer, the ________ feature ensures a continuous session between users by forwarding access requests within a certain period of time.
- A. session persistence
- B. health check
- C. Weighted Round Robin
- D. least connections scheduling
Correct Answer: A
Reference: https://www.alibabacloud.com/help/doc-detail/55202.html
Question 12 – With Alibaba Cloud Object Storage Service (OSS), you can store large amounts of data in a highly available, secure and cost-effective manner. As a result of its underlying backup technology and policies, OSS has a superior level of data reliability. Which of the following statements about OSS backup is true?
- A. Data can be manually recovered if there is a problem, since OSS supports three internal data copies.
- B. As OSS provides a variety of backup interfaces, customers need to safeguard their own data.
- C. It is important to note that OSS leverages RAID0+1 configurations of its physical hard disks. The failure of two hard disks at the same time would not have any impact.
- D. Because OSS supports three internal data copies, data can be recovered without human intervention.
Correct Answer: B
Question 13 – It is a massive, highly available, secure, cost-effective and highly available cloud storage service. The advantages of OSS over self-built storage are numerous. High availability of OSS has which of the following advantages?
- A. Availability is determined by underlying hardware, which is prone to failure, and a bad hard drive can also cause permanent data loss.
- B. The data is automatically backed up with multiple redundant copies so that data reliability is not less than 99.99999999%.
- C. Customers are required to back up their data manually, which takes a lot of time and effort.
- D. The features available are: Multiple Authentication and Authorization mechanism, Whitelist, Anti-leech URL, and Master-Sub Account
Correct Answer: B
Question 14 – After registering for the website, users can download mp3 files after a company builds a music download website that uses OSS and ECS. There has been an increase in public network traffic to the OSS, but a decrease in registered users. The engineers find that a large number of user download requests come from search engines rather than from the website itself after performing an in-depth analysis. Which of the given measures is thought to be able to address this issue.
- A. Migrating music files from the OSS to the data disks for ECS instances.
- B. Changing the website access mode to HTTPS.
- C. Limiting access sources by configuring ג€Anti-leech settingsג€ of OSS bucket attributes.
- D. Introducing SLB for extra protection.
Correct Answer: C
Question 15 – Which of the given statements is correct for RDS?
- A. Multiple databases can be created in one RDS instance.
- B. Databases with the same name are allowed in the same instance.
- C. Resources are not shared among the databases in the same RDS instance.
- D. None of the above is true.
Correct Answer: A
Reference: https://www.alibabacloud.com/help/doc-detail/26092.html
Question 16 – One can choose an instance with the desired specification, complete payment, and then begin using it immediately with cloud computing services. Users are transparent to the underlying physical machines, which are managed by cloud service providers.
A. TRUE
B. FALSE
Correct Answer: A
Question 17 – In computing, a _________________ is a copy of data at a particular point in time.
- A. image
- B. snapshot
- C. template
- D. EIP
Correct Answer: B
Question 18 – It is possible to implement a high-availability architecture by combining multiple ECS instances with I/O optimization at a lower configuration with ________.
- A. Server Load Balancer
- B. RDS
- C. Auto Scaling
- D. OSS
Correct Answer: A
Question 19 – What is the full form of ECS?
- A. Elastic Compute Service
- B. Elastic Computing Server
- C. Elastic Cost Server
- D. Elastic Communication Server
Correct Answer: A
Question 20 – Alibaba Cloud does not support intranet communication between products that are located in different regions, so what does this mean?
- A. ECS instances in different regions cannot communicate with each other on the intranet.
- B. On the intranet, ECS instances cannot communicate with other products, such as ApsaraDB for RDS and OSS instances.
- C. Server Load Balancer cannot be deployed for ECS instances in various regions.
- D. Server Load Balancer can be deployed for ECS instances in various regions.
Correct Answer: B
Reference: https://www.alibabacloud.com/help/doc-detail/40654.html
