Free ACA Alibaba Cloud Products and Services Questions and Answers

Question 1

Multiple lower-configuration I/O-optimized ECS instances can be used with ___________ to deliver a high-availability architecture.

Accepted Answer

Server Load Balancer

Answer

Explanation:
Server Load Balancer (SLB) distributes incoming traffic across multiple ECS instances to ensure high availability and fault tolerance. By deploying multiple lower-configuration I/O-optimized ECS instances behind an SLB, you can evenly distribute the workload and handle traffic spikes effectively. SLB monitors the health of ECS instances and automatically routes traffic to healthy instances, improving the reliability and availability of your application or service.

Question 2

What is the full name of ECS?

Accepted Answer

Elastic Compute Service

Answer

Explanation:
Elastic Compute Service (ECS) is a core computing service offered by Alibaba Cloud, providing scalable and on-demand virtual servers for running applications and hosting websites. ECS allows users to deploy and manage virtual machines (instances) with flexible configurations, enabling them to quickly scale computing resources according to their needs.

Question 3

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

Accepted Answer

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

Answer

Explanation:
Alibaba Cloud does not support intranet communication between products (such as ECS instances, ApsaraDB for RDS, and OSS instances) that are not in the same region. This means that ECS instances and other products in different regions cannot communicate with each other on the intranet.

Question 4

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

Accepted Answer

Pay-As-You-Go

Answer

Explanation:
Pay-As-You-Go billing allows users to pay only for the resources they consume, based on usage. For a service with relatively fixed traffic like an online ticket booking service, Pay-As-You-Go billing ensures that costs align closely with actual usage. Since the traffic is relatively fixed, there may not be a need to prepay for resources upfront. Pay-As-You-Go provides flexibility and cost-effectiveness, especially when there are predictable traffic patterns.

Question 5

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

Accepted Answer

Elastic Administration

Answer

Explanation:
The term "Elastic" in ECS refers to the ability to dynamically adjust computing resources such as CPU, memory, and storage to accommodate changing workloads and demands. However, there isn't a specific feature called "Elastic Administration" within ECS. The other options, Elastic Computing, Elastic Storage, and Elastic Network, are indeed relevant features offered by ECS, allowing for flexible scaling and management of computing resources, storage capacity, and network configurations.

ACA - Alibaba Cloud Certified Associate Practice Test

ACA - Alibaba Cloud Certified Associate Practice Test

Free ACA Alibaba Cloud Products and Services Questions and Answers