Black Friday Special Limited Time 70% Discount Offer - Ends in 0d 00h 00m 00s - Coupon code: 70percent

Certensure Logo
  1. Home
  2. Alibaba Cloud
  3. Alibaba Database
  4. ACA-Database - ACA Database Certification

Alibaba Cloud ACA-Database ACA Database Certification Exam Practice Test

Demo: 12 questions
Total 80 questions
Get ACA-Database Full Access Download ACA-Database PDF

ACA Database Certification Questions and Answers

Question 1

Which migration modes are supported by DTS (Data Transmission Service)? (Number of correct

answer: 3)

Options:

A.

From Alibaba Cloud RDS to other database systems

B.

From RDS to an ECS-based database

C.

From a different cloud provider to Alibaba Cloud

D.

From an RDS database, back to itself

Question 2

Alibaba Cloud DTS (Data Transmission Service) can only migrate between databases that are hosted

on RDS.

Options:

A.

True

B.

False

Question 3

PolarDB for MySQL allows you to deploy a cluster across multiple zones. Compared with single-zone clusters, multi-zone clusters have better disaster recovery capabilities and can withstand data centre-level faults.

Options:

A.

True

B.

False

Question 4

Which of the following statements about MongoDB is NOT true?

Options:

A.

MongoDB is a relational database.

B.

MongoDB is a document database.

C.

MongoDB supports transactions.

D.

MongoDB can be deployed in cluster mode.

Question 5

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

Options:

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.

Question 6

You can purchase more read-only nodes after you have created a cluster. If the primary node fails, the system automatically promotes the read-only node with the highest failover priority to become the new primary node while restoring the faulty node.

Options:

A.

True

B.

False

Question 7

Which of the following data is not collected when database information is collected in Advanced Database & Application Migration (ADAM)?

Options:

A.

Business structure data

B.

Historical performance data

C.

Database configuration data

D.

Business data

Question 8

Which of the following is NOT true, regarding DTS (Database Transmission Service)?

Options:

A.

DTS cannot be used for incremental database synchronization

B.

DTS supports multiple database engines

C.

DTS can migrate both data and table schema

D.

DTS works for database both on and off Alibaba Cloud

Question 9

When a backup file of core sensitive data is downloaded, business systems must be protected against data breaches. Which of the following capabilities must be enabled to ensure data security?

Options:

A.

Virtual private cloud (VPC)

B.

Secure Sockets Layer (SSL) encryption

C.

Transparent Data Encryption (TDE)

D.

SOL audit

Question 10

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

Options:

A.

True

B.

False

Question 11

Which of the following is not a feature or usage scenario of Data Lake Analytics (DLA)?

Options:

A.

Interactive analysis

B.

Batch processing

C.

Online transaction processing

D.

Stream or micro-batch processing

Question 12

Which of the following is the most efficient backup in ApsaraDB for MongoDB?

Options:

A.

Logical backup

B.

Physical backup

C.

Snapshot backup

D.

Full backup

Load More ACA-Database Questions
Demo: 12 questions
Total 80 questions
Get ACA-Database Full Access Download ACA-Database PDF