[Q20-Q44] Verified ACA-Operator dumps Q&As - Pass Guarantee or Full Refund [Jun-2022]

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Verified ACA-Operator dumps Q&As – Pass Guarantee or Full Refund [Jun-2022]

ACA-Operator PDF Dumps | Jun 01, 2022 Recently Updated Questions

QUESTION 20
Which of the following database connection methods does ApsaraDB for Redis support? (Number of correct answers: 2)

DMS (Data Management Service)

Aliyun-cli

Redis-cli

Sentinel

QUESTION 21
Which Alibaba Cloud service is an automated operations and maintenance (O&M) service to execute O&M tasks?

Operation Orchestration Service (OOS)

Maintenance Orchestration Service (MOS)

Resource Orchestration Service (ROS)

Resource Access Management (RAM)

QUESTION 22
Which Alibaba Cloud service is used to manage cloud computing resources including the deployment?

Operation Orchestration Service (OOS)

Maintenance Orchestration Service (MOS)

Resource Orchestration Service (ROS)

Resource Access Management (RAM)

QUESTION 23
Alibaba Cloud CloudMonitor is a service that monitors Alibaba Cloud resources and internet applications.
Which of the following functions are provided by CloudMonitor? (Number of correct answers: 4)

Site monitoring

Cloud product monitoring

Custom monitoring

Alerts

Custom firewall

QUESTION 24
Alibaba Cloud ActionTrail is a service that monitors and records the actions of your Alibaba Cloud account, including the access to and use of cloud products and services through the Alibaba Cloud console, API operations, and SDKs.

True

False

QUESTION 25
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)

Scheduled message

Ordered message

Batched message

Transactional message

Retried message

QUESTION 26
Alibaba Cloud ActionTrail is a service that monitors and records the actions of your Alibaba Cloud account, including the access to and use of cloud products and services through the Alibaba Cloud console, API operations, and SDKs.

False

True

QUESTION 27
Which database utility is suitable for automate perception, healing, optimization, O&M, and security assurance for databases?

DMS

DBS

DTS

DAS

QUESTION 28
Which of the following features are unique to Alibaba Cloud Container Registry, as compared with Docker Hub? (Number of correct answers: 2)

Container Registry can automatically build new Docker images when source code changes.

For source code hosted on websites outside China, Container Registry can use servers outside China to build Docker images, even when you are using a Container Registry instance in Mainland China.

You can create and delete image repositories in different regions based on your needs.

You can set your image repository access to public or private.

QUESTION 29
Alibaba Cloud Log Service allows you to store and search logs from a variety of sources, but has no built-in visualization capabilities.

True

False

QUESTION 30
When you use SQL statements to access tables in a database without an index configured, a full table scan will be performed. If a table contains a large amount of data, this kind of scan will access a large amount of data and consume a lot of the database’s resources. Which of the following options are best practices when creating database indexes? (Number of correct answers: 3)

Add an index to a field that is frequently queried but does not frequently perform add, delete, or modify operations.

Applies indices to fields to contain many records.

A table should not contaiiAiore than 6 indexed fields.

Apply indexing to fields of fixed length (preferably not long fields).

Adhere to the rightmost prefix principle when using composite indexes

QUESTION 31
Which command is used to get the Docker daemon information?

docker info

docker version

docker pull

docker image

QUESTION 32
________________ is a fully-managed event-driven computing service that allows you to run code in an elastic and reliable way?

Function Compute

Serverless Workflow

Elastic Compute Service (ECS)

Batch Compute

QUESTION 33
A developer needs to use some sensitive business data and operational data in the process of developing a program, but the data should be protected (encrypted or anonymized) as much as possible. In order to facilitate and secure management of data encryption keys, the developer can use Alibaba Cloud Key Management Service (KMS) envelope encryption technology. Which of these statements is NOT correct, regarding KMS?

Developers can generate a plaintext data key and a ciphertext data key by calling the GenerateDataKey interface.

Envelope encryption is an encryption mechanism similar to digital envelope technology. The technology allows you to store, transfer and use encrypted data by encapsulating their Data Keys (DKs) in an envelope, instead of y encrypting/decrypting data directly with Customer Master Keys (CMKs).

The user uses the master key created on KMS to encrypt and decrypt the generated data key.

The master key generated by KMS is also kept by the user.

QUESTION 34
How does Cloud Config get permission to gather information about other Alibaba Cloud services?

An Access Key

A RAM Role

By storing a copy of your password

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

QUESTION 35
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?

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

The CreateSecurityGroup API call was not made

The CreateDisk API call was not made

The ECS was not restarted after being created

QUESTION 36
Your company decided to replicate the whole cloud environment in another region and use it as a cross-region failover in disaster recovery scenarios.
Your current environment includes Elastic Compute Service (ECS) instances, Server Load Balancer (SLB) instances and Relational Database Service (RDS) instances. Which of the following statements is correct?

You can provision multiple ECS instances in multiple regions, thereby leveraging automatic high availability across regions

You can provision multiple SLB instances in multiple regions, thereby leveraging automatic high availability across regions

You can use DNS to resolve domain names to the IP addresses of multiple ECS instances running in different regions

You can use DNS to resolve domain names to the IP addresses of multiple SLB instances running in different regions

QUESTION 37
Which of the following methods can NOT be used for operating Alibaba Cloud Elastic Compute Service (ECS) instances?

CLI

SDK

Console

CloudFormation

QUESTION 38
RAM supports custom policies.

True

False

QUESTION 39
Which of the following descriptions describes the (Security Token Service) STS service correctly? (Number of correct answers: 3)

Through the STS service, RAM users or RAM roles can obtain a temporary token that allows them to call the Alibaba Cloud API or use the web console

A STS request consists of an access address, communication protocol, request method, request parameters and character encoding

When calling the STS API, in order to ensure the safe calling of the API, Alibaba Cloud will authenticate each API request through a signature when each API call is made

The STS service supports the use of both HTTP and HTTPS protocols

QUESTION 40
Cloud Config tracks configuration changes of your resources and evaluates configuration compliance.

True

False

QUESTION 41
Which of these log formats is currently supported by Alibaba Cloud’s ActionTrail?

XML

HTML

JSON

Markdown

QUESTION 42
Serverless Workflow allow you to orchestrate distributed tasks in sequence, branch, and parallel modes, and ensure that tasks are reliably coordinated according to your workflow logic. Which of the following service integration modes is not supported by Serverless Workflow?

Request response mode

Synchronization mode

Asynchronous mode

Waiting for callback mode

QUESTION 43
Tracing Analysis is used to analyze and diagnose performance bottlenecks in a distributed application architecture and make microservice development and diagnostics more efficient.

True

False

QUESTION 44
ApsaraDB for HBase is a cost-effective cloud-based intelligent SQL service that is of high scalability and compatible with the open source HBase.

True

False

Alibaba Cloud ACA-Operator Exam Syllabus Topics:

Topic	Details
Topic 1	Use Alibaba Cloud services and features to manage and assess resource utilization Implement scalability and elasticity based on a given use case using Auto-Scaling and Load Balancer
Topic 2	Network design for resource sharing between different accounts Use Cloud Config to track resource configuration changes and evaluate configuration compliance
Topic 3	Manage permissions for an enterprise organization on the cloud Recognize and differentiate highly available and resilient architectures on Alibaba Cloud
Topic 4	Deploy and configure ECS on Alibaba Cloud, Set up remote access to ECS Apply Alibaba Cloud Networking Features
Topic 5	Use Cloud Monitor to monitor application resource usage and health status Cloud Architecture- High Availability and Fault Tolerance