Alibaba Cloud Certified Associate – Cloud Computing — Question 34

Which of the following statements is wrong when comparing RDS with self-built database?

Answer options

• A. RDS features a high availability of 99.95% while self-built database requires you to implement data protection, primary-standby replication, and RAID all by yourself.
• B. RDS provides automatic backup while self-built database requires you to prepare storage space for backup copies and regularly verify that these copies can be restored.
• C. Self-built database supports quick deployment and elastic scaling.
• D. RDS requires no O&M while self-built database requires a dedicated DBA for maintenance, which results in high HR cost.

Correct answer: C

Explanation

The correct answer is C, as self-built databases typically require significant time and effort for deployment and scaling, contrary to the statement. Options A, B, and D accurately describe the differences between RDS and self-built databases, highlighting the advantages of RDS in availability, backup, and maintenance.