ACA-Operator Certification – Valid Exam Dumps Questions Study Guide! (Updated 63 Questions) [Q31-Q49]

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ACA-Operator Certification – Valid Exam Dumps Questions Study Guide! (Updated 63 Questions)

ACA-Operator Dumps are Available for Instant Access using ActualTorrent

Alibaba Cloud ACA-Operator Exam Syllabus Topics:

Topic	Details
Topic 1	Create an ECS image to package the application and runtime environments for easy distribution Gather and interpret relevant information for network troubleshooting
Topic 2	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 3	Implement connectivity to build a full-mesh global network on cloud Create container images for lightweight application packaging using Docker
Topic 4	Identify and implement data protection, encryption, and capacity planning needs Enable finance to see what is being spent, when, and by whom
Topic 5	Migrate data from a local environment to OSS or RDS using DTS or OSS utilities Implement data backup, archiving and retention for Cloud Disk, RDS, and OSS

NO.31 Which of the following options are correct for Multipart Upload and Resumable Upload in Object Storage Service (OSS)? (Number of correct answers: 3)

Use Multipart Upload to upload multiple parts of a file in parallel to speed up the upload process

Multipart Upload is usually used when the size of the file to be uploaded is large

If the upload fails due to an accident during the uploading of fragments, you need to upload all the fragments again

After an upload is interrupted, the portions of the file which have successfully uploaded prior to the interruption will be saved in the OSS bucket

NO.32 Which of the following statements about ECS Snapshot is NOT correct?

You can manually create snapshots

You can create automatic snapshots

You can roll back a disk by using a snapshot

You can create an ECS instance from a snapshot

Explanation
You can create a custom image from a snapshot that contains the operating system and data of an ECS instance. Then, you can use the custom image to create multiple instances that have identical application environments.
https://www.alibabacloud.com/help/doc-detail/25391.htm

NO.33 Which of the following methods can NOT be used for operating Alibaba Cloud Elastic Compute Service (ECS) instances?

CLI

SDK

Console

CloudFormation

Explanation
https://www.alibabacloud.com/help/doc-detail/25422.htm

NO.34 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

NO.35 You can create an event notification rule in Message Service and push notifications to the specified consumer in the form of messages, to receive events from specified Alibaba Cloud resources. Which of the following options are correct statements about the Message Service (MS) service? (Number of correct answers: 2)

Event Notifications can cross regions.

Message Service provides synchronous notification to ensure the consistency between the message acknowledgment and event processing.

The event notification message is retained within the valid time. When you fail to receive an event message, the event notification message is retained based on the specified retry policy.

The consumer type of the event notification message can be HTTP Server, Queue, or Topic.

NO.36 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

Explanation
https://www.alibabacloud.com/help/doc-detail/102530.htm

NO.37 Which of the following fields should be defined in the Alibaba Cloud Terraform Provider Configuration? (Number of correct answers: 3)

image_id

access_key

ecret_key

region

Explanation
https://www.terraform.io/docs/language/providers/requirements.html

NO.38 Which of the following data volume types is not supported by Elastic Container Instance (ECI)?

EmptyDir

NFS

ConfigFile

FixedVolume

Explanation
FlexVolume is the correct one
https://www.alibabacloud.com/help/doc-detail/90672.htm

NO.39 ________________ 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

Explanation
https://www.alibabacloud.com/help/doc-detail/52895.htm

NO.40 Which of the following descriptions of the principles of Alibaba Cloud SSL certificate private key protection is correct?

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

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

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

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

NO.41 Which of these metrics are collected by CloudMonitor’s Host Monitoring function? (Number of correct answers: 3)

CPU status of the ECS instance

Running processes on the ECS instance

Storage space used by OSS buckets

ECS network I/O

Explanation
https://www.alibabacloud.com/help/doc-detail/35170.htm

NO.42 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

Explanation
https://www.alibabacloud.com/help/doc-detail/35170.htm

NO.43 Which of the following services is used to establish private network connections between virtual private clouds (VPCs) in different regions, or between VPCs and data centers?

CEN (Cloud Enterprise Network)

Express Connect

VPN Gateway

NAT Gateway

Explanation
https://www.alibabacloud.com/help/doc-detail/59870.htm

NO.44 You need to log all actions taken by users of your Alibaba Cloud account, whether via the command line tools or the web console. Which Alibaba Cloud product can you use to create a log of user operations?

CloudMonitor

ActionTrail

Cloud Configo

Resource Group

Explanation
https://www.alibabacloud.com/help/doc-detail/28804.htm

NO.45 Which of these is NOT a function of CloudMonitor?

Set alarm rules for any of CloudMonitor’s metrics

Set the alarm rule effective period (the time during which the alarm may trigger)

Set notification methods for different alarms

Automatically take remedial action when an alarm triggers

Explanation
https://www.alibabacloud.com/help/doc-detail/35170.htm

NO.46 A developer has written a web application using a microservice architecture, in such an architecture, the client (web browser or mobile application) first initiates a request. The request first reaches the load balancer, then goes through an authentication service, a billing service, then requests a resource, and finally a result is returned. How many spans does such a call chain consist of?

Explanation
1-request, 2-load balancer, 3-authentication service, 4-billing service, 5-resource request

NO.47 Which of the following options correctly describes CloudMonitor Custom Monitoring and Custom Events?
(Number of correct answers: 2)

Custom Events is used for collection of continuous event type data, queries, and alarms

Custom Events is for periodic and continuous collection of time series monitoring data, queries, and alarms

Custom Monitoring is used for periodic and continuous collection of time series monitoring data, queries, and alarms

Custom Monitoring is used for collection of non-continuous event data, such as information about ECS instance restarts

Explanation
https://www.alibabacloud.com/help/doc-detail/35170.htm

NO.48 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

NO.49 Which of the following steps is NOT mandatory when creating an API through Alibaba Cloud API Gateway?

Define basic API information

Attach a domain name

Define API Request parameters

Define the API backend service

Explanation
https://www.alibabacloud.com/help/doc-detail/29478.htm

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