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ACA-Cloud1 ACA Cloud Computing Associate Questions and Answers

Questions 4

A company wants to use Alibaba Cloud service to replace their self-built database, which of the following services should it choose?

Options:

A.

AsparaDB for RDS

B.

Server Load Balancer (SLB)

C.

Alibaba Cloud CDN (Content Delivery Network)

D.

Deploy more ECS instances

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Questions 5

SQL injection is a common application layer attack, usually through building special input parameters and pass it to web applications to steal or sabotage the application data. Which of the following is the target for SQL injection?

Options:

A.

Web application

B.

Database

C.

Confidential files on the server

D.

Pictures on server

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Questions 6

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?

Options:

A.

Event Management Service

B.

Aftersales Support

C.

Alibaba Cloud Architecture Design Training

D.

Alibaba Cloud Product Operation Training

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Questions 7

Which of the followings are not the operations that you can do on a cloud disk snapshot? (Choose two.)

Options:

A.

snapshot duplicate

B.

snapshot rollback

C.

snapshot download

D.

snapshot deletion

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Questions 8

An enterprise hosts their servers (include both Linux and Windows servers) in a traditional IDC. Every night hackers with IP addresses from many countries try to crack the password of their servers, making the administrator terribly worried about this. However, because of work requirements, the remote management port of these servers must be opened to public network.

The administrator heard that Alibaba Cloud has solutions that can help customers improve the security of their systems. Therefore, he/she wants to migrate the system to Alibaba Cloud. Which of the following functions should the administrator activate in Alibaba Cloud to reduce the possibility of brute force password cracking?

Options:

A.

CloudMonitor

B.

Server Guard

C.

Anti-DDoS Basic Service

D.

Situation Awareness

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Questions 9

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.

Options:

A.

RDS

B.

Auto Scaling

C.

VPC

D.

MaxCompute

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Questions 10

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

Options:

A.

through OSS API/SDK

B.

through ECS instance filesystem directory operation

C.

through oss cmd tool

D.

through cloud console

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Questions 11

When using Alibaba Cloud OSS, you can set access control in 3 different levels, which are (Choose three.)

Options:

A.

Bucket level

B.

Object level

C.

RAM account level

D.

Directory level

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Questions 12

Alibaba Cloud Object Storage Service (OSS) is a massive, highly available, secured and cost effective storage service. One of the special characteristics of OSS is its superior data reliability, because of its underlying backup technology and policies. Which of the following statement about OSS backup is correct?

Options:

A.

OSS supports 3 internal data copies, so the data can be manually recovered should there be any problem.

B.

Customer has to safeguard their own data. OSS provides various backup interfaces to facilitate offsite backups.

C.

OSS leverages RAID0+1 configuration of its underlying physical hard disks. There is no impact even if 2 hard disks were to fail simultaneously.

D.

OSS supports 3 internal data copies, no human intervention is required to recover the data when anything goes wrong.

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Questions 13

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.

Options:

A.

SLB instances must have Health Check enabled, or they cannot be used together with Auto Scaling

B.

All ECS instances under the same SLB instance must be running on the same operating system

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

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Questions 14

Which of the following statements is true for RDS?

Options:

A.

Multiple databases can be created in one RDS instance.

B.

Databases with the same name are allowed in the same instance.

C.

Resources are not shared among the databases in the same RDS instance.

D.

None of the above is true.

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Questions 15

Server Load Balancer supports protocols like. (Choose four.)

Options:

A.

HTTP

B.

HTTPS

C.

TCP

D.

UDP

E.

MPLS

F.

MQTT

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Questions 16

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

Options:

A.

RDS

B.

SLB

C.

ECS

D.

MaxCompute

E.

OSS

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Questions 17

Auto Scaling is a management service that can automatically adjust elastic computing resources based on your business needs and policies. Which of the following application scenarios are suitable for Auto Scaling? (Choose three.)

Options:

A.

You need to flexibly adjust elastic computing resources based on your business needs, and ECS instances will be added seamlessly to address traffic peaks and surges.

B.

You need to flexibly adjust elastic computing resources based on your business needs, and ECS instances will be reduced automatically to save costs when business needs drop.

C.

When an ECS instance reacts abnormally in a scaling group, Auto Scaling will create a new ECS instance to take over the computing tasks conducted by the faulty instance.

D.

You want to flexibly adjust elastic computing resources based on your business needs, and ECS instances will be automatically upgraded (with more Memory, more powerful CPU) when needed.

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Questions 18

Alibaba Cloud’s object storage (Object Storage Service, OSS for short) can be used to store massive amount of files, but there is still a maximum number of files in a single bucket.

Options:

A.

TRUE

B.

FALSE

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Questions 19

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?

Options:

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.

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Questions 20

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?

Options:

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.

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Questions 21

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

Options:

A.

MySQL

B.

SQL Server

C.

Postgre SQL

D.

Oracle database

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Exam Code: ACA-Cloud1
Exam Name: ACA Cloud Computing Associate
Last Update: Nov 2, 2024
Questions: 72
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