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What is the charge for the data transfer incurred in replicating data between your primary and standby?

A.
No charge. It is free.

B.
Double the standard data transfer charge.

C.
Same as the standard data transfer charge.

D.
Half of the standard data transfer charge.

Explanation:
Q: How much do Read Replicas cost? When does billing begin and end? A Read Replica is billed as a
standard DB Instance and at the same rates. Click here for more information on DB Instance billing visit this
FAQ. Just like a standard DB Instance, the rate per “DB Instance hour” for a Read Replica is determined by the
DB Instance class of the Read Replica please see Amazon RDS detail page for up-to-date pricing. You are
not charged for the data transfer incurred in replicating data between your source DB Instance and
Read Replica. Billing for a Read Replica begins as soon as the Read Replica has been successfully created
(i.e. when status is listed as “active”). The Read Replica will continue being billed at standard Amazon RDS DB
Instance hour rates until you issue a command to delete it.

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