Alibaba ACA-Cloud1 Exam Practice Test Instant Access

Question 1

ECS is a highly flexible service. It can be used independently as a simple web server, or used with other

Alibaba Cloud products, such as OSS and CDN, to provide advanced solutions. ECS can be used in applications such as: . (Choose four.)

AOfficial corporate websites

Blarge-traffic apps

CDatabases

Dsimple web applications

Eno limited online storage

Answer : A, B, C, D

Question 2

Auto Scaling is a management service that can automatically adjust elastic computing resources based on your business needs and policies. It supports adding existing ECS instances into the scaling group, whose status however must be .

ARunning

BCreated

CStopped

DPreparing

Answer : A

http://static-aliyun-doc.oss-cn-hangzhou.aliyuncs.com/download/pdf/DNESS1876951_en- US_intl_181115175025_public_176152014821b385708e5290da11a0fe.pdf (14)

Question 3

Which of the following statements is true for RDS?

AMultiple databases can be created in one RDS instance.

BDatabases with the same name are allowed in the same instance.

CResources are not shared among the databases in the same RDS instance.

DNone of the above is true.

Answer : A

https://www.alibabacloud.com/help/doc-detail/26092.htm

Question 4

Company builds a music download website based on OSS and ECS, and users can download mp3 files

after registering for the website. Recently, the public network traffic to the OSS has doubled but the increase of registered users is less than 10%. After in-depth analysis, engineers find that many user download requests are raised from search engine but not the website itself. In this case, which of the following measures is thought to be able to address this issue.

AMigrates music files from the OSS to the data disks for ECS instances.

BChanges the website access mode to HTTPS.

CLimits access sources by configuring ''Anti-leech settings'' of OSS bucket attributes.

DIntroduce SLB for extra protection.

Answer : C

http://static-aliyun-doc.oss-cn-hangzhou.aliyuncs.com/download/pdf/DNOSS11828897_en- US_intl_190202150837_public_b55986256a50380c526a35e863023ec9.pdf (55)

Question 5

Cloud disks are reliable because they use to provide block-level data storage for ECS instances, ensuring 99.9999999% data reliability.

Aa distributed file management system with 3 redundant copies

Ba file system

Ca double copy distributed system

Da Linux file system

Answer : A

An ECS disk can be used jointly or separately to meet the requirements of different application scenarios. ECS disks are categorized into ephemeral SSD disks and cloud disks. Compared with ephemeral SSD disks, cloud disks are more reliable as they use a triplicate distributed system to provide block-level data storage for ECS instances, ensuring 99.9999999% data reliability.

http://docs-aliyun.cn-hangzhou.oss.aliyun-inc.com/pdf/ecs-product-introduction-intl-en-2017-03- 24.pdf

Question 6

Alibaba Cloud relational database service (RDS) is a stable, reliable and elastic online database service. RDS supports below database types ? (Choose three.)

AMySQL

BSQL Server

CPostgreSQL

DOracle database

Answer : A, B, C

Question 7

Which three of the following statements about domain name binding to your OSS bucket are correct? (Choose three.)

AYour customized domain name will be audited by Alibaba Cloud

Byour customized domain name need to be put on record in MIIT (Ministry of Industry and Information Technology)

Cthe number of domain names you bind to one bucket can't exceed 20

Dmapping a domain name to your bucket endpoint is mandatory

Answer : A, B, D

Alibaba ACA-Cloud1 ACA Cloud Computing Associate Exam Practice Test