Question No. 1

Which of the following is NOT a feature of Alibaba Cloud's Cassandra database service?

ACenterless distributed architecture

BSupports both narrow and wide tables, providing flexible schema functions

CCluster storage, strong expansion of read and write capabilities

DEnterprise-level capabilities such as disaster tolerance, backup and recovery, security, and monitoring across data centers

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Correct Answer: B

Question No. 2

A developer runs a web application on a physical machine in an IDC. The machine is running Ubuntu Linux. Which of the following is the recommended method if he wants to migrate this web application onto an Alibaba Cloud ECS instance?

AUse a third-party image creation tool to create an image from the physical server. Upload the image to the ECS console to turn it into a custom image. Then, use the custom image to create ECS instances.

BUse SMC(Server Migration Center) to collect data from the origin physical server. Create an intermediate ECS instance on Alibaba Cloud and wait for the data transfer to complete. Then generate a new image directly from that intermediate ECS instance.

CUse a third-party image creation tool to create an image from the physical server. The image is then uploaded to Alibaba Cloud Object Storage Service (OSS) for storage. In the ECS console, import that image from OSS, then, create an ECS instance from the custom image.

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Correct Answer: A

Question No. 3

Which of the following features are unique to Alibaba Cloud Container Registry, as compared with Docker Hub? (Number of correct answers: 2)

AContainer Registry can automatically build new Docker images when source code changes.

BFor 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.

CYou can create and delete image repositories in different regions based on your needs.

DYou can set your image repository access to public or private.

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Correct Answer: B, D

Question No. 4

As more businesses move online and collect more data about their users, databases are beginning to grow very large, affecting table query performance and business operations. In order to solve these problems, in addition to sub-database sub-table transformation, we can also use Data Management Service (DMS)'s archiving function to regularly archive large table dat

a. We can then remove the archived records from the original table to improve query performance. Which of these statements about this feature of DMS is NOT correct?

AThe supported database types are RDS MySQL and PolarDB MySQL

BBefore you can use this feature of DMS, you must first enable Alibaba Cloud's Database Backup Service (DBS)

CBackup data can be stored In OSS

DThe user role of this operation must be 'administrator' or 'DBA'

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Correct Answer: D

Question No. 5

Which of the following are types of backend services that API Gateway supports? (Number of correct answers: 3)

AHTTP(s) service

BCloudMonitor Service

CResources In a VPC

DFunction Compute

ELog service

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Correct Answer: A, B, C

Free Alibaba ACA-Developer Exam Actual Questions

The questions for ACA-Developer were last updated On Nov 18, 2024