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Which of the following statements about the compatibility of AnalyticDB for PostgreSQL is NOT true?

A.

Support for the Java Database Connectivity (JDBC) protocol

B.

Support for the SQL2003 syntax standard

C.

Compliance with PostgreSQL and Greenplum protocols

D.

Fully compatible with Oracle syntax

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

A.

Read/write splitting

B.

Load balancing

C.

Health checks for nodes

D.

Failover strategies for high availability

E.

Data encryption

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

A.

Multi-cloud and multi-backend backup

B.

Real-time synchronization

C.

High mount speeds (a few seconds)

D.

Online query and analysis

Which of the following are NOT true, regarding DTS (Data Transmission Service)? (Number of correct answers: 2)

A.

The source and destination database must use the same database engine

B.

The source and destination database must both have a database user which DTS can use

C.

If the source database is not on Alibaba Cloud, it must be Internet accessible so that DTS can connect to it

D.

DTS is designed for file synchronization

Which of the following are features supported by Alibaba Cloud RDS for MySQL? (The number of

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

A.

Interactive analysis

B.

Batch processing

C.

Online transaction processing

D.

Stream or micro-batch processing

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

A.

pg_dump

B.

pg_restore

C.

pg_upgrade D.DTS

D.

pg_basebackup

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?

A.

Use DTS (Data Transmission Service)

B.

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

C.

This type of migration isn't possible

D.

Migrate the entire VM hosting the database

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

A.

Re-migrate all schemas

B.

Re-migrate the failed schemas

C.

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

D.

Customize schema migration

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

A.

Structured data in rows and columns

B.

Document-oriented unstructured data

C.

Large amounts of time series data

D.

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