Alibaba Alibaba Cloud ACA-CLOUD1 Questions & Answers

• Question 61:

  Server Load Balancer can help protect from ___________________ attack.

  A. DDoS

  B. Virus

  C. Ransomware

  D. SQL injection

  Correct Answer: A

  Reference: https://www.alibabacloud.com/help/doc-detail/27539.htm

• Question 62:

  When using Alibaba Cloud SLB, you can set different weights for backend ECS instances. The higher the weight of a backend ECS instance, the more load will be assigned to it. If an SLB instance has 5 ECS instances in the backend server pool, all of which are healthy. Among these 5 ECS instances, the weight of ecs_inst1 is set to 100. Which of the following statements is correct?

  A. We do not know the weight settings of the remaining 4 ECS instances, so we cannot tell what would happen.

  B. 100% of loads will be assigned to ecs_inst1, and the rest 4 ECS instances will stay idle.

  C. Based on SLB's working mechanism, approximately 20% of loads will be assigned to ecs_inst1.

  D. Based on request level parameters of external requests, all requests with a request level parameter of 100 will be transferred to ecs_inst1.

  Correct Answer: A

• Question 63:

  ___________________ is a ready-to-use service that seamlessly integrates with Elastic Compute Service (ECS) to manage varying traffic levels without manual intervention.

  A. Server Load Balancer

  B. OSS

  C. RDS

  D. VPC

  Correct Answer: A

• Question 64:

  Your website has oscillating traffic peaks that are difficult to predict in advance. In this scenario, it is recommended to use SLB and __________________ together with ECS.

  A. RDS

  B. Auto Scaling

  C. VPC

  D. MaxCompute

  Correct Answer: B

• Question 65:

  Your website has high volume of traffic and sudden spikes for a very short time. In this scenario, ______________ can manage traffic peak efficiently and maintain a consistent user experience.

  A. Server Load Balancer

  B. Auto Scaling

  C. RDS

  D. VPC

  Correct Answer: B

  Reference: https://www.alibabacloud.com/blog/designing-a-cloud-based-architecture-for-internet-ofvehicles-iov-series-ii_594263

• Question 66:

  When we talk about the `Elastic' feature for ECS product, we are not talking about _____________.

  A. Elastic Computing

  B. Elastic Storage

  C. Elastic Network

  D. Elastic Administration

  Correct Answer: D

• Question 67:

  If you are running an online ticket booking service with relatively fixed traffic, then which kind of charging mode is more suitable for you?

  A. Pay-As-You-Go

  B. Prepaid

  C. Paypal-pay

  D. bitcoin-pay

  Correct Answer: A

• Question 68:

  What is the full name of ECS?

  A. Elastic Compute Service

  B. Elastic Computing Server

  C. Elastic Cost Server

  D. Elastic Communication Server

  Correct Answer: A

• Question 69:

  Alibaba Cloud does not support Intranet communication between products that are not in the same region, which does not mean ______________?

  A. ECS instances in different regions cannot communicate with each other on the intranet.

  B. ECS instances and other products in different regions, such as ApsaraDB for RDS and OSS instances, cannot communicate with each other on the intranet.

  C. Server Load Balancer cannot be deployed for ECS instances in various regions.

  D. Server Load Balancer can be deployed for ECS instances in various regions.

  Correct Answer: B

  Reference: https://www.alibabacloud.com/help/doc-detail/40654.htm

• Question 70:

  A/An _________________ is a copy of data on a disk at a certain point in time.

  A. image

  B. snapshot

  C. template

  D. EIP

  Correct Answer: B