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

A. It takes a longer time to perform operations and maintenance (OandM) 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.

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

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

A. DMS

B. DBS

C. DTS

D. DAS

E. DG

Which of the following are reasonable Data Transmission Service (DTS) use cases? (Number of correct answers: 4)

A. Database migration without interrupting services / downtime

B. Geo-disaster recovery and active geo-redundancy for databases

C. Synchronizing data to data warehouses in real time to build data warehouses for real- time analytics.

D. Configuring data audit rules to manage data quality.

E. Synchronizing information about user accounts and permissions.

F. Change tracking and data distribution.

Your client is having trouble connecting DTS to their source database in their local datacenter, why might this be?

A. Their database isn't on Alibaba Cloud already so it cannot be accessed by DTS

B. Their database is not accessible from the Internet, so DTS cannot access it

C. Their database must not include the special DTS compatibility mode

D. Their database is an inverted column store, which is not supported