2022 Latest 100% Exam Passing Ratio - ACA-Operator Dumps PDF
Pass Exam With Full Sureness - ACA-Operator Dumps with 63 Questions
Alibaba Cloud ACA-Operator Exam Syllabus Topics:
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NEW QUESTION 11
You can create an event notification rule in Message Service and push notifications to the specified consumer in the form of messages, to receive events from specified Alibaba Cloud resources. Which of the following options are correct statements about the Message Service (MS) service? (Number of correct answers: 2)
- A. The event notification message is retained within the valid time. When you fail to receive an event message, the event notification message is retained based on the specified retry policy.
- B. The consumer type of the event notification message can be HTTP Server, Queue, or Topic.
- C. Event Notifications can cross regions.
- D. Message Service provides synchronous notification to ensure the consistency between the message acknowledgment and event processing.
Answer: A,B
NEW QUESTION 12
Which of the following descriptions describes the (Security Token Service) STS service correctly? (Number of correct answers: 3)
- A. When calling the STS API, in order to ensure the safe calling of the API, Alibaba Cloud will authenticate each API request through a signature when each API call is made
- B. Through the STS service, RAM users or RAM roles can obtain a temporary token that allows them to call the Alibaba Cloud API or use the web console
- C. A STS request consists of an access address, communication protocol, request method, request parameters and character encoding
- D. The STS service supports the use of both HTTP and HTTPS protocols
Answer: A,B,C
NEW QUESTION 13
Which of these metrics are collected by CloudMonitor's Host Monitoring function? (Number of correct answers: 3)
- A. CPU status of the ECS instance
- B. Running processes on the ECS instance
- C. ECS network I/O
- D. Storage space used by OSS buckets
Answer: A,B,C
Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/35170.htm
NEW QUESTION 14
ApsaraDB for HBase is a cost-effective cloud-based intelligent SQL service that is of high scalability and compatible with the open source HBase.
- A. False
- B. True
Answer: A
Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/49501.htm
NEW QUESTION 15
Which of these are important concepts in Terraform's configuration language, HCL? (Number of correct answers: 3)
- A. Resource
- B. Variable
- C. Service Mesh
- D. Provider
Answer: A,B,D
NEW QUESTION 16
Which of the following steps is NOT mandatory when creating an API through Alibaba Cloud API Gateway?
- A. Define the API backend service
- B. Define API Request parameters
- C. Attach a domain name
- D. Define basic API information
Answer: C
Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/29478.htm
NEW QUESTION 17
Which of the following options are correct for Multipart Upload and Resumable Upload in Object Storage Service (OSS)? (Number of correct answers: 3)
- A. If the upload fails due to an accident during the uploading of fragments, you need to upload all the fragments again
- B. After an upload is interrupted, the portions of the file which have successfully uploaded prior to the interruption will be saved in the OSS bucket
- C. Use Multipart Upload to upload multiple parts of a file in parallel to speed up the upload process
- D. Multipart Upload is usually used when the size of the file to be uploaded is large
Answer: B,C,D
NEW QUESTION 18
Which of the following database connection methods does ApsaraDB for Redis support? (Number of correct answers: 2)
- A. Sentinel
- B. Redis-cli
- C. Aliyun-cli
- D. DMS (Data Management Service)
Answer: B,D
NEW QUESTION 19
Which Alibaba Cloud service is used to manage cloud computing resources including the deployment?
- A. Resource Access Management (RAM)
- B. Operation Orchestration Service (OOS)
- C. Resource Orchestration Service (ROS)
- D. Maintenance Orchestration Service (MOS)
Answer: C
Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/28852.htm
NEW QUESTION 20
A developer needs to use some sensitive business data and operational data in the process of developing a program, but the data should be protected (encrypted or anonymized) as much as possible. In order to facilitate and secure management of data encryption keys, the developer can use Alibaba Cloud Key Management Service (KMS) envelope encryption technology. Which of these statements is NOT correct, regarding KMS?
- A. The master key generated by KMS is also kept by the user.
- B. Developers can generate a plaintext data key and a ciphertext data key by calling the GenerateDataKey interface.
- C. Envelope encryption is an encryption mechanism similar to digital envelope technology. The technology allows you to store, transfer and use encrypted data by encapsulating their Data Keys (DKs) in an envelope, instead of \y encrypting/decrypting data directly with Customer Master Keys (CMKs).
- D. The user uses the master key created on KMS to encrypt and decrypt the generated data key.
Answer: B,C,D
NEW QUESTION 21
Which Alibaba Cloud service is an automated operations and maintenance (O&M) service to execute O&M tasks?
- A. Resource Orchestration Service (ROS)
- B. Operation Orchestration Service (OOS)
- C. Resource Access Management (RAM)
- D. Maintenance Orchestration Service (MOS)
Answer: B
Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/120556.htm
NEW QUESTION 22
RAM supports custom policies.
- A. True
- B. False
Answer: A
Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/93733.htm
NEW QUESTION 23
A Developer is creating a Function Compute function. This function requires around 1 GB of temporary storage for files while executing. These files will not be needed after the function is completed for a fixed period. How can this developer MOST efficiently handle the temporary files?
- A. Store the files in the /tmp directory on a temporary ECS instance, and delete the files at when the Function Compute function call completes.
- B. Copy the files to an OSS bucket with a lifecycle policy configured to delete the files automatically.
- C. Copy the files to NFS and delete the files when the Function Compute function call completes.
- D. Store the files in Cloud Disk and delete the files when Function Compute function call completes.
Answer: B
NEW QUESTION 24
Which database utility is suitable for database migration?
- A. DTS
- B. DAS
- C. DBS
- D. DMS
Answer: A
Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/176063.htm
NEW QUESTION 25
You are responsible for the system operations of a product and have implemented the cloud infrastructure in the Alibaba Cloud platform. When business loads increase, _______ automatically adds ECS instances to ensure sufficient computing capabilities. When business loads decrease, the same service automatically removes ECS instances to save costs. Which service are you using?
- A. Auto Scaling
- B. Resource Access Management (RAM)
- C. Server Load Balancer (SLB)
- D. Resource Orchestration Service (ROS)
Answer: D
Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/25857.htm
NEW QUESTION 26
Cloud Config tracks configuration changes of your resources and evaluates configuration compliance.
- A. True
- B. False
Answer: A
Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/127388.htm
NEW QUESTION 27
Which of the following features are unique to Alibaba Cloud Container Registry, as compared with Docker Hub? (Number of correct answers: 2)
- A. For source code hosted on websites outside China, Container Registry can use servers outside China to build Docker images, even when you are using a Container Registry instance in Mainland China.
- B. You can set your image repository access to public or private.
- C. Container Registry can automatically build new Docker images when source code changes.
- D. You can create and delete image repositories in different regions based on your needs.
Answer: A,D
NEW QUESTION 28
Which database utility is suitable for automate perception, healing, optimization, O&M, and security assurance for databases?
- A. DTS
- B. DBS
- C. DMS
- D. DAS
Answer: D
Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/64851.htm
NEW QUESTION 29
Which of the following fields should be defined in the Alibaba Cloud Terraform Provider Configuration? (Number of correct answers: 3)
- A. region
- B. access_key
- C. image_id
- D. ecret_key
Answer: A,B,D
Explanation:
Explanation
https://www.terraform.io/docs/language/providers/requirements.html
NEW QUESTION 30
When you use SQL statements to access tables in a database without an index configured, a full table scan will be performed. If a table contains a large amount of data, this kind of scan will access a large amount of data and consume a lot of the database's resources. Which of the following options are best practices when creating database indexes? (Number of correct answers: 3)
- A. A table should not contaiiAiore than 6 indexed fields.
- B. Adhere to the rightmost prefix principle when using composite indexes
- C. Applies indices to fields to contain many records.
- D. Add an index to a field that is frequently queried but does not frequently perform add, delete, or modify operations.
- E. Apply indexing to fields of fixed length (preferably not long fields).
Answer: A,D,E
NEW QUESTION 31
Which of the following is NOT required for SMC (Server Migration Center) to migrate a server to Alibaba Cloud?
- A. The SMC client transfers the source data to an intermediate ECS instance
- B. From the SMC console, configure the type of disk image to be generated during the migration
- C. The SMC backend service generates a target Alibaba Cloud image based on the migration source
- D. Import the migration source information to the SMC console
Answer: B
Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/127116.htm
NEW QUESTION 32
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