A sys admin is trying to understand EBS snapshots. Which of the below mentioned statements will not be
useful to the admin to understand the concepts about a snapshot?
A.
The snapshot is synchronous
B.
It is recommended to stop the instance before taking a snapshot for consistent data
C.
The snapshot is incremental
D.
The snapshot captures the data that has been written to the hard disk when the snapshot command
was executed
Explanation:
The AWS snapshot is a point in time backup of an EBS volume. When the snapshot command is executed it will
capture the current state of the data that is written on the drive and take a backup. For a better and consistent
snapshot of the root EBS volume, AWS recommends stopping the instance. For additional volumes it is
recommended to unmount the device. The snapshots are asynchronous and incremental.
Answer should be C
Nope Kelvin. The snapshots of the EBS will be incremental. If you take multiple snapshots of the EBS volume then only the changes are reflected on the snapshots i.e. incremental.
A snapshot on EBS is never synchronous.
A.
The snapshot is synchronous
The thumbs up/down are rally having no any significance in this site. We are here to discussing/learning.
A is correct
Answer A.
See. http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ebs-creating-snapshot.html
“Snapshots occur asynchronously”.
A is correct.
Snapshots are Asynchronous.
hmm A is ‘snapshots are synchronous’ , unless it changed after you guys answered.
my bad , missed the ‘not’ in the question. should sleep now…
a
A.
Snapshots occur asynchronously
Snapshots occur asynchronously; the point-in-time snapshot is created immediately, but the status of the snapshot is pending until the snapshot is complete (when all of the modified blocks have been transferred to Amazon S3), which can take several hours for large initial snapshots or subsequent snapshots where many blocks have changed. While it is completing, an in-progress snapshot is not affected by ongoing reads and writes to the volume.
A
A
A