Alibaba Alibaba Cloud ACA-CLOUD1 Questions & Answers

• Question 41:

  You can create a custom image for ECS using which of the followings? (Choose two.)

  A. Data disk snapshot

  B. CPU snapshot

  C. Memory snapshot

  D. System disk snapshot

  Correct Answer: AD

  Reference: https://www.alibabacloud.com/help/doc-detail/25460.htm

• Question 42:

  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. Web hosting

  B. ICP Support

  C. Office registration support

  D. Connect your service with Alibaba Group ecosystem

  Correct Answer: D

• Question 43:

  A company wants to migrate its system to public cloud platform and they choose Alibaba Cloud. The migration process is very important and they want to ensure that everything works right. Which of the following services can the company choose?

  A. Event Management Service

  B. Aftersales Support

  C. Alibaba Cloud Architecture Design Training

  D. Alibaba Cloud Product Operation Training

  Correct Answer: C

• Question 44:

  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. The main target for DDoS attack is the database.

  B. DDoS attack will try to crack the password through a large number of attempts.

  C. 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.

  D. The purpose of DDoS attack is to steal confidential information.

  Correct Answer: C

• Question 45:

  Alibaba Cloud provides anti-DDoS products of different levels. If the service availability needs to be kept at 99.9% or higher under DDoS attacks, which of the following is the MOST suitable product?

  A. Anti-DDoS Service Basic

  B. Managed Security Service

  C. Situation Awareness

  D. Anti-DDoS Service Pro

  Correct Answer: A

  Reference: https://www.alibabacloud.com/product/anti-ddos

• Question 46:

  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. Anti-DDoS Basic

  B. Anti-DDoS pro

  C. WAF

  D. Server Guard

  Correct Answer: C

  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/docdetail/43443.htm

• Question 47:

  Auto Scaling is a management service that can automatically adjust elastic computing resources based on your business needs and policies. It supports adding an existing ECS instance into the scaling group but imposes certain requirements on instance region. In this case, which of the following statements is true?

  A. The instance and the scaling group must be in the same region but not necessarily the same zone.

  B. The instance and the scaling group must be in the same region and zone.

  C. The instance and the scaling group can be in different regions and zones.

  D. Each scaling group can span up to two regions. After adding the ECS instance, the number of regions of all the ECS instances in the scaling group must be no greater than two.

  Correct Answer: B

• Question 48:

  Auto Scaling is a management service that can automatically adjust elastic computing resources based on your business needs and policies. Which of the following is not the feature supported by Alibaba Cloud Auto Scaling?

  A. Elastic Scale-Out

  B. Elastic Scale-In

  C. Elastic Self-Health

  D. Elastic Self-Diagnostic

  Correct Answer: D

  Reference: https://www.alibabacloud.com/product/auto-scaling

• Question 49:

  A customer uses Alibaba Cloud Auto Scaling service and creates a scaling group. He/she sets the "Minimum number of instances" to 6 and "Maximum number of instances" to 8.

  After correctly configuring scaling settings, the customer adds a scaling rule "Adjust to 10 ECS instances", and creates a scheduled task based on this rule.

  And then, the customer checks the scaling group and see it already contains 6 valid ECS instances, he/ she then enables this scaling group immediately.

  How many ECS instances are left in the scaling group when the scheduled task is activated once?

  A. Eight

  B. Ten

  C. Six

  D. Five

  Correct Answer: D

• Question 50:

  A customer uses Alibaba Cloud Auto Scaling service and creates a scaling group. He/she sets the "Minimum number of instances" to 6 and "Maximum number of instances" to 8.

  After correctly configuring scaling settings, the customer adds a scaling rule "Remove 5 ECS instances", and creates a scheduled task based on this rule.

  And then, the customer checks the scaling group and see it already contains 8 valid ECS instances, he/ she then enables this scaling group immediately.

  How many ECS instances are left in the scaling group when the scheduled task is activated once?

  A. One

  B. Six

  C. Zero

  D. Five

  Correct Answer: C