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

RDS

Answer

Auto Scaling

Answer

OSS

Question 2

What is the full name of ECS?

Accepted Answer

Elastic Compute Service

Answer

Elastic Computing Server

Answer

Elastic Cost Server

Answer

Elastic Communication Server

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

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

Answer

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

Answer

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

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

Prepaid Most Voted

Answer

Paypal-pay

Answer

Bitcoin-pay

Question 5

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

Accepted Answer

Elastic Administration

Answer

Elastic Computing

Answer

Elastic Storage

Answer

Elastic Network

Question 6

Your website has a 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.

Accepted Answer

Auto Scaling

Answer

Server Load Balancer

Answer

RDS

Answer

VPC

Question 7

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.

Accepted Answer

Auto Scaling

Answer

RDS

Answer

VPC

Answer

MaxCompute

Question 8

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

Accepted Answer

Server Load Balancer

Answer

OSS

Answer

RDS

Answer

VPC

Question 9

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?

Accepted Answer

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

Answer

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

Answer

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

Answer

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

Question 10

Server Load Balancer can help protect from _________________ attack.

Accepted Answer

DDoS

Answer

Virus

Answer

Ransomware

Answer

SQL injection