ACA-Database Exam Dumps Questions Available

dumps2021-10-16T02:32:57+08:00

Alibaba Cloud ACA-Database exam is for Colleague students, Database developers. We provide the latest Alibaba Cloud ACA-Database exam dumps questions, which can guarantee you success. There are 50 questions in real Alibaba Cloud ACA-Database exam, and you have 90 minutes to complete all the questions. Free Alibaba Cloud ACA-Database exam dumps questions are available below.

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1. 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

2. 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)

Data lineage

Data quality

Data visualization

Data directory

Data service

3. 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

4. Which of the following databases are supported by DTS (Database Transmission Service)? (Number of correct answers: 3)

MySQL

SQL Server

PostreSQL

DB2

5. Which of the following features is provided by Data Management (DMS)?

Integrates data across multiple data sources

Backs up multiple types of databases

Evaluates the database migration project

Enables online database management, such as data query, database and table management, and permission management

6. 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

7. Which of the following tools can be used to migrate an on-premises database to Alibaba Cloud while causing minimal service downtime?

pg_dump

pg_restore

pg_upgrade

DTS

pg_basebackup

8. Which of the following is NOT supported by schema migration in Advanced Database & Application Migration (ADAM)?

Re-migrate all schemas

Re-migrate the failed schemas

Migrate the schemas that require a manual revision but have not been revised

Customize schema migration

9. Which migration modes are supported by DTS (Data Transmission Service)? (Number of correct answer: 3)

From Alibaba Cloud RDS to other database systems

From RDS to an ECS-based database

From a different cloud provider to Alibaba Cloud

From an RDS database, back to itself

10. Which of the following deployment architectures are supported by Alibaba Cloud ApsaraDB for MongoDB? (Number of correct answers 3)

Standalone instance

Primary/secondary instance that consists of two nodes

Replica set instance that consists of three nodes

Sharded cluster instance

Replica set instance that consists of six nodes

11. lf Oracle databases need to be migrated to Alibaba Cloud, which of the following product solutions: an be recommended? (Number of correct answers: 3)

Use PolarDB-0 that is highly compatible with Oracle.

Use Advanced Database & Application Migration (ADAM) to evaluate the migration project.

Use ApsaraDB for Redis as a cache service to provide acceleration capabilities.

Use Data Transmission Service (DTS) to migrate data.

12. 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?

Virtual private cloud (VPC)

Secure Sockets Layer (SSL) encryption

Transparent Data Encryption (TDE)

SOL audit

13. Which of the following scheduling tools are supported by AnalyticDB for MySQL? (Number of correct answers: 2)

DMS

Data Works

MaxCompute

QuickBl

14. 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

15. Which of the following types of data are most suitable for storage in MySQL databases?

Structured data in rows and columns

Document-oriented unstructured data

Large amounts of time series data

Key-value (KV) data that is frequently read and written

16. Which of the following is not a relational database?

Oracle

DB2

Teradata

Redis

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

Redo log

Rollback log

Binary log

Error log

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

DTS cannot be used for incremental database synchronization

DTS supports multiple database engines

DTS can migrate both data and table schema

DTS works for database both on and off Alibaba Cloud

19. 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

20. Alibaba Cloud DTS (Data Transmission Service) supports both full database migration and incremental synchronization.

True

False

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

Interactive analysis

Batch processing

Online transaction processing

Stream or micro-batch processing

22. How can ApsaraDB for MyBase solve problems in database security and performance interferences in the multi-tenant scenario?

ApsaraDB for MyBase supports resource over commitment.

Instances can be migrated. You can manually migrate instances to idle hosts.

Isolated hosts are used. A host runs only your instances and does not run instances of other users.

ApsaraDB for MyBase allows you to distribute different types of instances at a time.

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

Basic Edition

C series

S series

Elastic Mode

24. Alibaba Cloud DTS (Data Transmission Service) is a file migration tool.

True

False

25. 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?

40%

50%

60%

70%

26. 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.

True

False

27. Which of the following is NOT true, regarding the sensitive data management feature provided by Data Management (DMS)?

The rules of field metadata and data content can be automatically recognized.

De-identification algorithms can be managed. Multiple algorithms are supported, such as algorithms for masking specific positions and replacing fixed characters.

Field-level and row-level permissions are supported.

After you configure de-identification algorithms, you can view the de-identified data.

28. Which of the following is the lowest recovery point objective (RPO) for Database Backup Service?

Seconds

Minutes

Hours

Days

29. Why is ApsaraDB for PolarDB better than other traditional database engines? (The number of answer: 3)

When you purchase a PolarDB cluster, you don't need to specify the storage capacity you want to purchase

PolarDB supports both OLTP and OLAP scenarios very well

The PolarDB database engine won't require you to replicate data when adding read-only nodes

ApsaraDB for PolarDB uses the pay-as-you-go billing method, therefore you only need to pay for the storage resources you actually use

30. Which database utility is used for data migration and synchronization?

DMS

DBS

DTS

DAS

ADAM

31. Which of the following tasks cannot be completed by using Advanced Database & Application Migration (ADAM)?

De-Oracle workload evaluation

Data structure conversion

Data migration

Performance monitoring

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

FC Switch

SAN

Proxy

RDMA

ACA-Database Exam Dumps Questions Available

ACA-Database Exam Dumps Questions Available

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