Alibaba ACA Database ACA-Database Exam Practice Test

From which of the following data sources or databases can Data Lake Analytics (DLA) read data for analysis? (Number of correct answers: 6)

When high availability switchovers occur in a database, which of the following features provided by ApsaraDB RDS for PostgreSQL can prevent the incremental data loss of logical subscriptions?

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

PolarDB for MySQL uses shared distributed storage and supports dual-zone deployment by default. How many data replicas are available across the two zones?

You need to migrate a database that has a storage capacity of 50 GB to the cloud and can tolerate a service downtime of half an hour. In this case, which of the following migration methods is the optimal choice to migrate data to the cloud in terms of stability and availability?

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

Which of the following are database architectures which have emerged during the evolution of database systems? (Number of correct answers: 3)