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Alibaba Cloud ACA-Operator - ACA System Operator Certification

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Total 62 questions

ApsaraDB for HBase is a cost-effective cloud-based intelligent SQL service that is of high scalability and compatible with the open source HBase.

A.

True

B.

False

In Alibaba Cloud, a developer finds that the ECS instance he created does not

have public IP assigned. The API method used was “CreateInstance”. Which

of the following is the most likely reason?

A.

The developer did not call AllocatePublicIpAdress (an additional API call), which is needed to assign a public IP

B.

The CreateSecurityGroup API call was not made

C.

The CreateDisk API call was not made

D.

The ECS was not restarted after being created

Alibaba Cloud RocketMQ is typically used in scenarios where message publishing and consumption performance requirements are high. Which of the following are supported message types in Alibaba Cloud RocketMQ? (Number of correct answers: 3)

A.

Scheduled message

B.

Ordered message

C.

Batched message

D.

Transactional message

E.

Retried message

Which database utility is suitable for automate perception, healing, optimization, O&M, and security assurance for databases?

A.

DMS

B.

DBS

C.

DTS

D.

DAS

Which Alibaba Cloud service is used to manage cloud computing resources including the deployment?

A.

Operation Orchestration Service (OOS)

B.

Maintenance Orchestration Service (MOS)

C.

Resource Orchestration Service (ROS)

D.

Resource Access Management (RAM)

Which of the following descriptions of the principles of Alibaba Cloud SSL certificate private key protection is correct?

A.

Alibaba Cloud uses the built-in functionality of the SSL certificate service to encrypt and store the private key to ensure the security of your certificate's private key

B.

The plaintext of Alibaba Cloud's private key is usually stored on disk and backed up regularly

C.

Alibaba Cloud Certificate Service uses symmetric encryption to save the certificate private key.

D.

Alibaba Cloud Certificate Service keys are loaded into memory in plaintext format ONLY when needed.

Which of these metrics are collected by CloudMonitor’s Host Monitoring function? (Number of correct answers: 3)

A.

CPU status of the ECS instance

B.

Running processes on the ECS instance

C.

Storage space used by OSS buckets

D.

ECS network I/O

How does Cloud Config get permission to gather information about other Alibaba Cloud services?

A.

An Access Key

B.

A RAM Role

C.

By storing a copy of your password

D.

It gets automatic permission to access everything, because it is an Alibaba Cloud service

As the system administrator of a multinational company, you are responsible

for the accounts and resources management on the cloud. Which of the

following solutions are suitable for your company’s IT Governance? (Number of correct answers: 3)

A.

Use role-based SSO for Identities access, use resource directory to manage the resources in shared service account and master account

B.

Use CEN for interconnecting different networks globally, use shared VPC to share services between different organizations

C.

Use Cloud Config and Action Trail for compliance and audit

D.

Use one single VPC for all the resources to have the best performance

E.

Stop using Action Trail and Cloud Config to save the storage cost

Which of the following Alibaba Cloud services offers a software-defined wide area network (SD-WAN) solution based on cloud-native technologies?

A.

NAT Gateway

B.

Smart Access Gateway (SAG)

C.

VPN Gateway

D.

Content Delivery Network (CDN)