Updated Nov-2021 Test Engine to Practice ACA-Developer Test Questions
ACA-Developer Real Exam Questions Test Engine Dumps Training With 97 Questions
NEW QUESTION 40
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 retried based on the specified retry policy.
- B. Event Notifications can cross regions.
- C. The consumer type of the event notification message can be HTTP Server, Queue, or Topic.
- D. Message Service provides synchronous notifications to ensure the consistency between the message acknowledgment and event processing.
Answer: A,D
NEW QUESTION 41
Which of the following web applications are suitable for deployment on Simple Application Server (SAS), as compared with LCS? (Number of correct answers: 3)
- A. Quickly build a small e-commerce website
- B. Quickly build a personal blog website
- C. Quickly build a personal, learning, or test environment
- D. Set up a NoSQL database service
- E. Quickly build serverless site using Function Compute
Answer: B,C,E
NEW QUESTION 42
Which of the following operations can be performed through Log Service sAPI? (Number of correct answers:
3)
- A. Create a Logstore, write and read logs to the Logstore
- B. Access control for different users
- C. Collect logs based on Logtail configuration and Logtail machine group information
- D. Deliver logs to OSS for storage and analysis
Answer: A,B,C
NEW QUESTION 43
When using Alibaba Cloud CDN, a visitor's request will first be routed to a CDN edge node, and in the event of a cache miss at this edge node, the node will fetch data from the origin site (back-to-source request). Even with this redirection, it is possible for the origin site to see the visitors real IP address. Which of the following statements about obtaining the visitor's real IP address are correct? (Number of correct answers: 2)
- A. A visitor's real IP address can only be obtained by modifying the site or web application.
- B. In Windows, if IIS is used, after installing the "F5XForwardedFor" extension module, the visitor's real IP address can be seen via IIS logs.
- C. You can activate the "record visitor's real IP" function in the Alibaba Cloud CDN console, then you can directly view visitor's IP addresses from the Alibaba Cloud CDN access logs.
- D. A visitor's real IP address is stored in the "X-Forwarded-For" HTTP header It can be directly obtained via Apache or NGINX logs.
Answer: A,B
NEW QUESTION 44
Which of these are good ways to secure access to your API deployed on Alibaba Cloud API Gateway?
(Number of correct answers: 3)
- A. Enable API Gateway to connect to backend services in an Alibaba Cloud VPC network group. This guarantees the security of API requests.
- B. Use OpenID Connect to authenticate requests.
- C. Allow only internal IP addresses to call the API.
- D. Configure security keys for API Gateway.
- E. Use HTTPS to encrypt requests.
Answer: A,C,E
NEW QUESTION 45
Which of the following statements are correct, with regard to Alibaba Cloud Log Service? (Number of correct answers: 3)
- A. The Log Service frontend service adopts an LVS + NGINX architecture
- B. The Logstore backend service is deployed on a single machine to complete the real-time persistence, indexing, query and delivery of Logstore data to MaxCompute
- C. As an agent for collecting logs, Logtail can collect logs from existing system log files in a non-intrusive manner
- D. Each log written to the Log Service backend will be saved in triplicate (across three separate physical servers)
Answer: A,B,D
NEW QUESTION 46
Which of the following statements describes AKs (Access Keys) incorrectly?
- A. You can use AK to construct an API request and the corresponding resources can be manipulated if your request successfully..
- B. An AccessKey ID and AccessKey Secret cannot be used separately
- C. AccessKey Secrets for RAM sub-accounts can be queried at any time on the Console Interface after creation
- D. AK can refer to both the AccessKey ID and the AccessKey secret
Answer: D
NEW QUESTION 47
Alibaba Cloud Link Tracing Analysis supports call link reporting based on the Open Tracing standard. Which of the following client types does link tracing support? (Number of correct answers:3)
- A. Zipkln
- B. Pinpoint
- C. Skywalklng
- D. Jaeger
Answer: D
Explanation:
Explanation
https://www.alibabacloud.com/blog/opentracing-implementation-of-jaeger_594957
NEW QUESTION 48
You have an application with the following requirements:
7. There will be a lot of video content that need to be uploaded.
2. Each uploaded video needs to be preprocessed to provide different video resolutions and quality levels to accommodate different devices and network conditions.
3. It should be possible to process video in parallel at scale, to ensure that videos are preprocessed in a reasonable amount of time.
Which of the following Alibaba Cloud applications can be combined to provide a low operation and maintenance burden and relatively low operating costs? (Number of correct answers: 3)
- A. Server Load Balancer (SLB)
- B. Serverless Workflow
- C. Function Compute
- D. Elastic Compute Service (ECS)
- E. Log Service
Answer: B,D,E
NEW QUESTION 49
Which of the following data volume types is not supported by Elastic Container Instance (ECI)?
- A. FixedVolume
- B. EmptyDir
- C. NFS
- D. ConfigFile
Answer: B
NEW QUESTION 50
In Alibaba Cloud RocketMQ, messages are kept for up to _____ days. We recommend configuring a monitoring service to watch the consumption status, and intervene manually when ''not consumed but to be deleted'' message alarms occur.
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
NEW QUESTION 51
What are the required parameters for the Python SDK to create a client to access Alibaba Cloud's API?
(Number of correct answers: 3)
- A. access.key.secret
- B. regionjd
- C. access.keyjd
- D. zone jd
- E. vpcjd
Answer: A,B,C
Explanation:
Explanation
https://www.alibabacloud.com/help/doc-detail/53090.htm
NEW QUESTION 52
Alibaba Cloud RabbitMQ is typically used in scenarios where message publishing and consumption performance requirements are high. Which of the following are supported message types in Alibaba Cloud Rabbit MQ? (Number of correct answers: 3)
- A. Transactional message
- B. Batched message
- C. Retried message
- D. Scheduled message
- E. Ordered message
Answer: A,B,D
NEW QUESTION 53
A developer was sending a request to Key Management Service (KMS) through the KMSAPI interface, and found that the key management service cannot be accessed. What is a possible reason?
- A. The user key master key is in Pendinglmport state
- B. The user key master key is in PendingDeletion state
- C. The HTTPS protocol is not enabled
- D. User key master key is in Disabled state
Answer: B
NEW QUESTION 54
A job hunting website stores user's resumes in Object Storage Service (OSS) The current resume upload process is as follows:
7. Users upload resumes
2. The server responds to the upload request
3. The resume is uploaded to the server
4. 1 he server uploads the resume to OSS
Which of the following methods can be used to upload objects to OSS without requiring Step 3?
- A. Append Upload
- B. Simple Upload
- C. Form Upload
- D. Multipart Upload
Answer: A
NEW QUESTION 55
A company has some new content that needs to be promoted (such as new features, new activities, new games, or new articles). In order to achieve the overall promotion goal, the operating staff will select various channels for promotion (including standard HTML/HTML5 (desktop), iOS, and Android). You are using Alibaba Cloud's Log Service: in order to ascertain the effectiveness of content promotion accurately and in real time, which log collection method should you use, as a developer?
- A. Logslash
- B. Syslog
- C. Web Tracking
- D. Kafka
Answer: B
NEW QUESTION 56
What are the benefits of creating indexes on PolarDB? (Number of correct answers: 2)
- A. Improve the efficiency of DDL operations.
- B. Reduce invalid data scanning.
- C. Improve the query efficiency SELECT statements.
- D. Improve the efficiency of DML operations such as UPDATE.
Answer: B,C
NEW QUESTION 57
The event monitoring feature in CIoudMonitor provides custom event monitoring functions. Which of the following data reporting methods are included? (Number of correct answers: 3)
- A. Report event monitoring through the Java SDK
- B. Report event monitoring data via HTTP
- C. Report event monitoring through the Python SDK
- D. Report event monitoring data through the command line (CU)
Answer: A,B,C
NEW QUESTION 58
Which data format is NOT supported by Alibaba Cloud Message Service?
- A. SIMPLIFIED
- B. VERBOSE
- C. JSON
- D. XML
Answer: B
NEW QUESTION 59
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