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A user has configured an automated backup between 5 AM ?5:30 AM for the MySQL RDS DB. Will the performance of
RDS get frozen momentarily during a backup?

A.
No

B.
Yes, only if the instance size is smaller than large size

C.
Yes, provided it is a single zone implementation

D.
Yes, always

Explanation:
Amazon RDS provides two different methods for backing up and restoring the Amazon DB instances. A brief I/O freeze,
typically lasting a few seconds, occurs during both automated backups and DB snapshot operations on Single-AZ DB
instances.
http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Overview.BackingUpAndRestoringAmazonRDSInstances.
html

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