Alibaba Cloud ACA-Developer 問題集

質問 1：
A developer is writing logs through the Log Service API, and can see via the Logstore monitorin metrics that write traffic is about 10 MB/s, but a 403 error is reported during the writing process. Which of these is a possible cause?
A. There is not enough space in the Logstore partition
B. There is significant network delay
C. The target partition in the Logstore is not specified
D. The write throughput of a single partition is limited, and the 10 MB/s write traffic exceeds
正解：C

質問 2：
Which of the following is NOT a feature of Alibaba Cloud's Cassandra database service?
A. Supports both narrow and wide tables, providing flexible schema functions
B. Cluster storage, strong expansion of read and write capabilities
C. Enterprise-level capabilities such as disaster tolerance, backup and recovery, security, and monitoring across data centers
D. Centerless distributed architecture
正解：A

質問 3：
Which data format is NOT supported by Alibaba Cloud Message Service?
A. VERBOSE
B. XML
C. JSON
D. SIMPLIFIED
正解：A

質問 4：
You can use Alibaba Cloud Data transmission service (DTS) or the open source tool Redis-shake to migrate and synchronize data from a local Redis instance to an Alibaba Cloud Redis instance. What is one feature which DTS has but Redis-shake does not?
A. Full data migration
B. Incremental data migration
C. One-way data synchronization
D. Two-way data synchronization
正解：A

質問 5：
A developer is making the ModifyDDInstanceSpec API call to change the specifications of an RDS instance, but the operation fails. Why could this be? (Number of correct answers: 3)
A. The instance has a backup task being executed
B. The instance is in the running state
C. The targeted RDS instance is a disaster recovery instance
D. No instance type (specification) was included in the request parameters
正解：A,B,D

質問 6：
You have a Java application with source code stored on GitHub. Now you want to build a container image using this code, and store it on a Container Registry instance located in Mainland China. Which of the following is the simplest, lowest maintenance option?
A. Download the Java code from GitHub to your laptop, build the Docker image using a local Dockerfile, and use docker push to upload It to Container Registry.
B. Upload the Dockerfile to GitHub for version control, then download it together with the Java code to your local device, compile and pack container image, and upload the image to Alibaba Cloud Container Registry via docker push .
C. Associate your Alibaba Cloud Container Registry instance with your GitHub repository, and upload the Java code and Dockerfile to GitHub Th Container Registry's built-in build service, configuring a rule that will rebuild your container image whenever your GitHub code is updated
D. Associate your Alibaba Cloud Container Registry instance with your GitHub repository, and upload the Java code and Dockerfile to GitHub Set u Jenkins environment to automate the process of building the container image and pushing it to your Container Registry instance.
正解：C