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

• A.PostgreSQL
• B.TSDB
• C.MongoDB
• D.SQL Server
• E.HBase
• F.MariaDB
• G.Redis
• H.Oracle
• I.MySQL

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Which database utility is good for database management and DevOps?

• A.DMS
• B.DBS
• C.DTS
• D.DAS
• E.ADAM

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

• A.1
• B.15
• C.5
• D.10

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What is the maximum storage size that PolarDB currently provides?

• A.1TB
• B.10TB
• C.50TB
• D.100TB

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Which of the following statements about AnalyticDB for MySQL is true?

• A.AnalyticDB for MySQL can be used to build online transaction systems.
• B.AnalyticDB for MySQL can be used to build enterprise-grade data warehouse projects.
• C.AnalyticDB for MySQL is a NoSQL database.
• D.AnalyticDB for MySQL supports transactions.

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