Which term describes a read-only copy of a file system or volume, which can be created quickly
easily, and initially consumes no additional Space within the pool?
A.
vdev
B.
dataset
C.
snapshot
D.
clone
E.
pool
Explanation:
A snapshot is a read-only point-in-time copy of a file system. The copy-on-write
design
of ZFS makes them essentially “free” – They are space efficient and instantaneous, providing an
invaluable part of backup strategies and synchronizing data between systems.
Incorrect:
Incorrect:
NotA:A ZFS vdev (aka “virtual device”) is either:
a single disk, or
two or more disks that are mirrored, or
a group of disks that are organized using RAID-Z.
There are also special kinds of vdevs like hot-spares, ZIL or cache devices, etc.
Not D:
Clones are writeable snapshots, ideal for storing many private
copies of shared data for operations such as data migration, test
and development, or backup.
C