Summer Special - 65% Discount Offer - Ends in 0d 00h 00m 00s - Coupon code: c4sdisc65

ACA-Database PDF

$38.5

$109.99

3 Months Free Update

Add to Cart
  • Printable Format
  • Value of Money
  • 100% Pass Assurance
  • Verified Answers
  • Researched by Industry Experts
  • Based on Real Exams Scenarios
  • 100% Real Questions

ACA-Database PDF + Testing Engine

$61.6

$175.99

3 Months Free Update

Add to Cart
  • Exam Name: ACA Database Certification
  • Last Update: Sep 12, 2025
  • Questions and Answers: 80
  • Free Real Questions Demo
  • Recommended by Industry Experts
  • Best Economical Package
  • Immediate Access

ACA-Database Engine

$46.2

$131.99

3 Months Free Update

Add to Cart
  • Best Testing Engine
  • One Click installation
  • Recommended by Teachers
  • Easy to use
  • 3 Modes of Learning
  • State of Art Technology
  • 100% Real Questions included

ACA-Database Practice Exam Questions with Answers ACA Database Certification

Question # 6

Which of the following are the benefits of database views? (Number of correct answers: 3)

A.

Simplicity for queries

B.

Simplicity in structure: presents the database as a set of virtual tables specific to particular users or groups of users

C.

Easier for data visualization

D.

Stabilization of information: presents a consistent, unchanged image of the database structure

Full Access
Question # 7

Data Management (DMS) provides features related to data warehouse development to support task orchestration and recurring scheduling. Which of the following features are being developed? (Number of correct answers: 3)

A.

Data lineage

B.

Data quality

C.

Data visualization

D.

Data directory

E.

Data service

Full Access
Question # 8

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?

A.

Ganos

B.

Pase

C.

Slot failover

D.

High concurrency optimization

E.

Point-in-time restore

Full Access
Question # 9

Which of the following are relational databases? (Number of correct answers: 5)

A.

Oracle

B.

MySQL

C.

PostgreSQL

D.

MongoDB

E.

MariaDB

F.

Redis

G.

TSDB

Full Access
Question # 10

Which of the following statements about Alibaba Cloud ApsaraDB for MongoDB is true?

A.

It takes a longer time to perform operations and maintenance (O&M) on ApsaraDB for MongoDB instances than on self-installed and self-managed MongoDB.

B.

DataWorks is not supported for MongoDB data processing.

C.

Alibaba Cloud and MongoDB have a strategic partnership, so Alibaba Cloud Is able to provide the latest MongoDB features in our ApsaraDB for MongoDB product, in all our global regions.

Full Access
Question # 11

Which of the following is not a component of the PolarDB-0 architecture in Apsara Stack?

A.

FC Switch

B.

SAN

C.

Proxy

D.

RDMA

Full Access
Question # 12

Which of the following types of data that is stored in PostgreSQL databases can support the one-to-many data model? (Number of correct answers: 3)

A.

JSON

B.

Array

C.

String

D.

Cube

E.

Range

F.

JSONB

G.

GIS

Full Access
Question # 13

Which of the following is not a relational database?

A.

Oracle

B.

DB2

C.

Teradata

D.

Redis

Full Access
Question # 14

Alibaba Cloud DTS (Database Transmission Service) only supports MySQL databases.

A.

True

B.

False

Full Access
Question # 15

Which of the following specifications of AnalyticDB supports tiered storage of cold and hot data?

A.

Basic Edition

B.

C series

C.

S series

D.

Elastic Mode

Full Access
Question # 16

Which of the following architectures is not supported by ApsaraDB RDS for MySQL?

A.

The single-node Basic Edition architecture, which can be used in test and non-core production environments

B.

The high-avail ability architecture, in which primary and read-only nodes are deployed to implement automatic failovers

C.

The three-node Enterprise Edition architecture, which ensures zero data loss

D.

The serverless architecture, in which computing resources are charged based on the Pay-As-You-Go (PAYG) billing method

Full Access
Question # 17

Which type of the following logs is used to synchronize data between primary and secondary databases in RDS for MySQL?

A.

Redo log

B.

Rollback log

C.

Binary log

D.

Error log

Full Access
Question # 18

Which are the supported DB engine for PolarDB so far? (The number of Answer: 3)

A.

PolarDB for Mysql

B.

PolarDB for Postgres

C.

PolarDB for SQLserver

D.

PolarDB for Oracle

Full Access
Question # 19

What is the maximum number of read-only nodes in a PolarDB cluster?

A.

1

B.

5

C.

10

D.

15

Full Access
Question # 20

If a database exception occurs in a PolarDB cluster because important data is deleted by mistake, how i can data be restored?

A.

Level-2 backup + Redo log

B.

Level 1 backup + Redo log

C.

Level-2 backup

D.

Level-1 backup

Full Access
Question # 21

With ApsaraDB for MyBase, problems caused by a sudden spike in traffic are automatically resolved. How is this done?

A.

ApsaraDB for My Base allows you to deploy different types of instances in a cluster.

B.

ApsaraDB for MyBase grants you host permissions. You can log on to hosts to troubleshoot business problems in an emergency.

C.

ApsaraDB for MyBase supports the over commitment of CPU and disk resources.

D.

ApsaraDB for MyBase supports elastic upgrade policies. If the resource utilization of a database exceeds the preset threshold during a business peak, ApsaraDB for MyBase can automatically upgrade database resource specifications to respond to the business peak.

E.

ApsaraDB for MyBase allows you to specify a host when you create an instance.

Full Access
Question # 22

Which of the following statements is NOT correct about PolarDB?

A.

ApsaraDB for PolarDB is a cloud-native relational database service that is compatible with the MySQL, PostgreSQL, and Oracle engines

B.

Each ApsaraDB for PolarDB cluster supports up to 100 TB of storage space and can handle up to one million queries per second (QPS)

C.

ApsaraDB for PolarDB can scale clusters within a few minutes, recover from failures within a few seconds, and guarantee data consistency

D.

An ApsaraDB for PolarDB cluster can also be scaled out to a maximum of 16 nodes, and provide up to 6 times of performance improvement traditional MySQL clusters at a 30% to 50% cost reduction

E.

ApsaraDB for PolarDB is designed to handle large amounts of sequential queries

Full Access
Question # 23

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

A.

Use the command line like 'mysql' to connect to a cluster

B.

Use DMS to connect to a cluster

C.

Use a client like HeidiSQL to connect to a cluster

D.

Use PolarDB console to log into a cluster

Full Access
Question # 24

PolarDB for MySQL archive databases use log-structured merge-trees (LSM trees) and the Zstandard (ZSTD) data compression algorithm to increase the data compression ratio. How much storage can be saved, at most?

A.

40%

B.

50%

C.

60%

D.

70%

Full Access