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Alibaba Cloud Updated ACA-Cloud1 Exam Questions and Answers by madina

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Alibaba Cloud ACA-Cloud1 Exam Overview :

Exam Name: ACA Cloud Computing Associate
Exam Code: ACA-Cloud1 Dumps
Vendor: Alibaba Cloud Certification: Alibaba Cloud Computing
Questions: 72 Q&A's Shared By: madina
Question 12

A video streaming company uses SLB to distribute user requests to 30 ECS instances (the 30 ECS instances have the same configuration). Yet, the company finds that the service traffic soars dramatically every night from 20:00 to 02:00. According to their calculation, the evening traffic is 100% higher than the traffic in other periods of time. To properly respond to user requests, which of the following methods is most preferred from the perspective of cost and implementation simplicity?

Options:

A.

Configure Auto Scaling appropriately to automatically add or reduce ECS instances.

B.

Manually create 30 ECS instances using the custom image, and then add them to SLB every night before 20:00 and remove them after 02:00.

C.

Create 30 ECS instances based on the custom image and add them to SLB. Then, configure weights for these ECS instances to respond to user requests every night from 20:00 to 02:00, and reset those weights to zero for other periods of time.

D.

Configure Auto Scaling appropriately to automatically upgrade/downgrade the ECS instances.

Discussion
Question 13

__________feature in Server Load Balancer means that it can forward the access requests from a single user to the same ECS instance within a certain period to ensure session continuity.

Options:

A.

session persistence

B.

health check

C.

Weighted Round Robin

D.

least connections scheduling

Discussion
Question 14

Company В 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.

Options:

A.

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

B.

Changes the website access mode to HTTPS.

C.

Limits access sources by configuring “Anti-leech settings” of OSS bucket attributes.

D.

Introduce SLB for extra protection.

Discussion
Question 15

Which of the following statements is true for RDS?

Options:

A.

Multiple databases can be created in one RDS instance.

B.

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

C.

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

D.

None of the above is true.

Discussion
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