ACA-Database Exam Dumps, ACA-Database Practice Test Questions [Q25-Q42]

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ACA-Database Exam Dumps, ACA-Database Practice Test Questions

PDF (New 2022) Actual Alibaba Cloud ACA-Database Exam Questions

NEW QUESTION 25
When high availability switchovers occur in a database, which of the following features provided by ApsaraDB RDS for PostgreSQL can prevent the incremental data loss of logical subscriptions?

Ganos

Pase

Slot failover

High concurrency optimization

Point-in-time restore

NEW QUESTION 26
From which of the following data sources or databases can Data Lake Analytics (DLA) read data for analysis?
(Number of correct answers: 6)

MySQL

Oracle

OTS

MongoDB

AnolyticDB

HOLO

OSS

NEW QUESTION 27
Which of these are NOT good use cases for DTS (Data Transmission Service)? (Number of correct answers: 2)

Incremental synchronization for disaster recovery

Full database synchronization for database migration

Undoing changes made to a database by mistake

Saving database logs

NEW QUESTION 28
Which of the following statements about Data Management (DMS) permissions management is NOT true?

You can assign different resources and operation permissions to an Alibaba Cloud account as needed.

You must create different database accounts for each Alibaba Cloud account.

You cannot directly submit changes even if you have permissions to make changes.

The permissions of the accounts of resigned or transferred personnel can be automatically managed by using OpenAPI.

NEW QUESTION 29
You have a client that wants to move from another cloud provider’s database service to RDS. Which of these is the best way to move their database to Alibaba Cloud?

Use DTS (Data Transmission Service)

Make a full physical backup of their database and copy it into OSS

This type of migration isn’t possible

Migrate the entire VM hosting the database

NEW QUESTION 30
Which of the following features are provided by PolarDB-O’s proxy? (Number of correct answers: 4)

Read/write splitting

Load balancing

Health checks for nodes

Failover strategies for high availability

Data encryption

NEW QUESTION 31
Which of the following is the high-availability service level that is specified in the ApsaraDB RDS Service Level Agreement (SLA)?

90%

99%

99.5%

99.99%

NEW QUESTION 32
You are using DTS to migrate from a MySQL database installed on an ECS instance to a target database on RDS. In the DTS console, which of these is the correct “Instance Type” for the database?

ECS-based Databases

Express Connect DB

RDS Instance

ApsaraDB MongoDB

Explanation
https://www.alibabacloud.com/help/doc-detail/96154.htm?spm=a2c63.p38356.b99.118.59de5d1aWUVErx

NEW QUESTION 33
Which of the following are the core technologies behind Database Backup Service? (Number of correct answers: 3)

Multi-cloud and multi-backend backup

Real-time synchronization

High mount speeds (a few seconds)

Online query and analysis

NEW QUESTION 34
Which of the following is the wrong statement about PolarDB design architecture?

A PolarDB cluster contains one primary instance and up to 15 read-only instances

PolarDB consolidate compute processes and storage processes in one box, allowing the database capacity to scale up and down to meet your application needs in Alibaba Cloud

Read/write splitting is enabled for PolarDB clusters by default, providing transparent, highly available, and self-adaptive load balancing for your database

High speed network connection is enabled between the DB server and the chunk server, and data are transferred using the Remote Direct Memory Access (RDMA) protocol

Explanation
PolarDB decouples compute from storage.
https://www.alibabacloud.com/help/doc-detail/58766.htm?spm=a2c63.p38356.b99.11.4e333181dMpFmV

NEW QUESTION 35
Which of the following features is NOT supported by Data Transmission Service (DTS)?

Data migration

Data synchronization

Data backup

Change tracking

NEW QUESTION 36
Which of the followings is NOT a correct way to connect to PolarDB?

Use the command line like ‘mysql’ to connect to a cluster

Use DMS to connect to a cluster

Use a client like HeidiSQL to connect to a cluster

Use PolarDB console to log into a cluster

Explanation
Use the PolarDB console to log on to Database.
https://www.alibabacloud.com/help/doc-detail/68511.htm?spm=a2c63.p38356.879954.7.7c2855b1aLLHjb#task-

NEW QUESTION 37
Alibaba Cloud DTS (Data Transmission Service) is a file migration tool.

True

False

Explanation
DTS is a data migration, integration, synchronization and change tracking tool.
https://www.alibabacloud.com/help/doc-detail/176063.htm?spm=a2c63.l28256.b99.6.490d7142CiFvPb

NEW QUESTION 38
Suppose you are using MySQL currently, if you want to migrate to cloud native database PolarDB with little effort, which one is the best choice?

PolarDB MySQL

PolarDB PosgreSQL

PolarDB Oracle

PolarDB Box

Explanation
https://www.alibabacloud.com/help/doc-detail/58768.htm?spm=a2c63.l28256.b99.10.71ce3784cXj0y8

NEW QUESTION 39
PolarDB for MySQL uses shared distributed storage and supports dual-zone deployment by default. How many data replicas are available across the two zones?

NEW QUESTION 40
You want to migrate from MySQL to PostgreSQL: is this supported by DTS?

No, this type of migration isn’t supported

You can migrate between MySQL and Oracle but not between PostgreSQL

Yes, migration between different types of databases is supported by DTS

Explanation
https://www.alibabacloud.com/help/doc-detail/176064.htm?spm=a2c63.p38356.b99.7.3191591dPlcLJa

NEW QUESTION 41
If you have a development team with several developers working on cloud databases, which product is recommended to use for development collaboration?

DMS

DBS

DTS

DAS

Explanation
A series of step-based solutions for R&D processes, data security, and data development are provided in the Data Management (DMS) console to get you started with DMS.
https://www.alibabacloud.com/help/doc-detail/190124.htm?spm=a2c63.p38356.b99.40.6ad93d19Xe9h14

NEW QUESTION 42
What does DIM mean in data warehouse terms?

Dimension table

Operational data store (ODS)

Common data model (CDM)

Application data service (ADS)

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Updated May-2022 Pass ACA-Database Exam – Real Practice Test Questions: https://www.trainingquiz.com/ACA-Database-practice-quiz.html

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ACA-Database Exam Dumps, ACA-Database Practice Test Questions [Q25-Q42]

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