[Nov 25, 2021] Latest ACA-Cloud1 Exam with Accurate ACA Cloud Computing Associate PDF Questions

Practice To ACA-Cloud1 - TestSimulate Remarkable Practice On your ACA Cloud Computing Associate Exam

NEW QUESTION 34
Which of the following statements is true for RDS?

• A. Databases with the same name are allowed in the same instance.
• B. None of the above is true.
• C. Resources are not shared among the databases in the same RDS instance.
• D. Multiple databases can be created in one RDS instance.

Answer: D

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

 

NEW QUESTION 35
Your website has oscillating traffic peaks that are difficult to predict in advance. In this scenario, it is recommended to use SLB andtogether with ECS.

• A. VPC
• B. Auto Scaling
• C. RDS
• D. MaxCompute

Answer: B

 

NEW QUESTION 36
You built an online shop using Alibaba Cloud services (ECS, RDS, ...etc.) and very soon you'll have a campaign that every customer that invites 3 friends will get a 50% off coupon. To avoid HTTP flood attacks and ensure only genuine customers (not bots) joining the event, which security product should you choose?

• A. WAF
• B. Anti-DDoS pro
• C. Anti-DDoS Basic
• D. Server Guard

Answer: A

Explanation:
After adding your website to the WAF protection list, you can enable HTTP Flood protection and select an appropriate protection mode for the website Reference:
https://www.alibabacloud.com/help/doc-detail/43443.htm

 

NEW QUESTION 37
Which of the following statements to OSS bucket is not correct?

• A. Every user can create more than one bucket
• B. There is no limitation to objects number inside one bucket
• C. Every bucket should have a unique name
• D. Bucket name can be changed after creation

Answer: D

 

NEW QUESTION 38
Multiple lower-configuration I/O-optimized ECS instances can be used withto deliver a high- availability architecture.

• A. OSS
• B. Auto Scaling
• C. Server Load Balancer
• D. RDS

Answer: C

 

NEW QUESTION 39
Alibaba Cloud China Connect is a service that can help international companies do business in China. Which of the following services is not included in China Connect?

• A. Office registration support
• B. Connect your service with Alibaba Group ecosystem
• C. Web hosting
• D. ICP Support

Answer: B

 

NEW QUESTION 40
Alibaba Cloud Monitor service stems from years of experience of server monitoring technology in Alibaba group, leveraging the powerful data analysis capability of Alibaba cloud computing platform to provide monitoring service for various clients' applications and servers. A user receives an alert saying that the IOPS utilization rate for an ECS instance exceeds 80%. Yet, he/she is not sure how to handle the situation, the user may obtain help from Alibaba Cloud through the below methods ? (Choose three.)

• A. Check ECS or CloudMonitor product documents.
• B. Look for answers in Alibaba Cloud forum.
• C. You cannot obtain any help from Alibaba Cloud.
• D. Open a ticket to Alibaba Cloud help desk.

Answer: A,B,D

 

NEW QUESTION 41
Which method is not supported by OSS to create a bucket?

• A. through ECS instance filesystem directory operation
• B. through cloud console
• C. through oss cmd tool
• D. through OSS API/SDK

Answer: C

 

NEW QUESTION 42
Alibaba Cloud OSS is a cloud storage service that features massive capacity, outstanding security, low cost, and high reliability. To control the access to the files stored on OSS, OSS provides multiple access permissions for each bucket. These bucket permissions are . (Choose three.)

• A. Private-read
• B. Public-read
• C. Private
• D. Public-read-write

Answer: B,C,D

Explanation:
Reference:
https://www.alibabacloud.com/help/doc-detail/100676.htm

 

NEW QUESTION 43
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.

• A. Migrates music files from the OSS to the data disks for ECS instances.
• B. Introduce SLB for extra protection.
• C. Limits access sources by configuring "Anti-leech settings" of OSS bucket attributes.
• D. Changes the website access mode to HTTPS.

Answer: C

 

NEW QUESTION 44
A company uses Alibaba Cloud SLB and Auto Scaling at the same time, hoping this combination can help save O&M cost and provide a stable and reliable system.
However, because they do not have relevant experience, the company's engineers listed some precautions based on their understanding, and turned the list to you for advice.
As an expert of Alibaba Cloud, you tell them only _______________ is correct.

• A. All ECS instances under the same SLB instance must be running on the same operating system
• B. SLB instances must have Health Check enabled, or they cannot be used together with Auto Scaling
• C. All backend servers under the same SLB instance must be in the same Scaling Group
• D. All backend servers under the same SLB instance must have the same configuration

Answer: B

Explanation:
Explanation/Reference: https://www.alibabacloud.com/blog/comprehensive-upgrade-of-alibaba-cloud-auto-scaling- product_594112

 

NEW QUESTION 45
Some applications may encounter large traffic fluctuations within a short period. When ECS is used with
_______, the number of ECS instances is automatically adjusted based on traffic.

• A. OSS
• B. Auto Scaling
• C. RDS
• D. Server Load Balancer

Answer: B

Explanation:
Explanation/Reference: https://www.alibabacloud.com/help/doc-detail/25371.htm

 

NEW QUESTION 46
Which of the following is not the database type supported by RDS?

• A. SQL Server
• B. Postgre SQL
• C. MySQL
• D. Oracle database

Answer: D

Explanation:
Reference:
https://aws.amazon.com/rds/features/

 

NEW QUESTION 47
You are developing a highly available web application using stateless web servers. Which services are suitable for the application? (Choose three.)

• A. ECS
• B. SLB
• C. OSS
• D. RDS
• E. MaxCompute

Answer: A,C,D

 

NEW QUESTION 48
Your friend purchases some Alibaba Cloud resources and uses them to build an online training website. Before the site goes online, your friend wants to perform some performance tests but doesn't know how to do it. In this case, which of the following services can help?

• A. Load and Performance Testing Service
• B. Support Ticket Service
• C. None Of The Above
• D. After-Sales Support Service

Answer: D

 

NEW QUESTION 49
Anti-DDoS is one of the major features in Alibaba Cloud Security Service. Many websites have experienced different types of DDoS attacks, an accurate understanding of DDoS is crucial to protecting websites. Which of the following descriptions about DDoS attack is the most accurate one?

• A. DDoS attack will try to crack the password through a large number of attempts.
• B. The main target for DDoS attack is the database.
• C. The purpose of DDoS attack is to steal confidential information.
• D. The main purpose of DDoS attack is to make the target server unable to provide service normally, which is one of the network attacks that are most difficult to defend.

Answer: D

 

NEW QUESTION 50
Alibaba Cloud relational database service (RDS) is a stable, reliable and elastic online database service. RDS supports below database types _______________? (Choose three.)

• A. PostgreSQL
• B. SQL Server
• C. MySQL
• D. Oracle database

Answer: A,B,C

 

NEW QUESTION 51
Alibaba Cloud OSS is a cloud storage service that features massive capacity, outstanding security, low cost, and high reliability. To control the access to the files stored on OSS, OSS provides multiple access permissions for each bucket. These bucket permissions are ____________. (Choose three.)

• A. Private-read
• B. Public-read
• C. Private
• D. Public-read-write

Answer: B,C,D

Explanation:
Explanation/Reference: https://www.alibabacloud.com/help/doc-detail/100676.htm

 

NEW QUESTION 52
Your friend purchases some Alibaba Cloud resources and uses them to build an online training website. Before the site goes online, your friend wants to perform some performance tests but doesn't know how to do it. In this case, which of the following services can help?

• A. Load and Performance Testing Service
• B. Support Ticket Service
• C. None Of The Above
• D. After-Sales Support Service

Answer: D

Explanation:
Explanation/Reference: https://www.alibabacloud.com/support/after-sales

 

NEW QUESTION 53
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