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1Z0-820 · Question #3

The ZFS configuration on your server is: Pool1 6.67G 31K /pool Pool1/data 31K 31K /data Select the three commands that you would use to 1. Create, 2. List, and 3. Delete a snapshot of the /data file…

The correct answer is A. zfs snapshot pool1/data@now C. zfs list -t snapshot E. zfs destroy pool1/data@now. Options A, C, and E map exactly to ZFS's three-word syntax pattern: zfs snapshot, zfs list, and zfs destroy. Why the correct answers work: A (zfs snapshot pool1/data@now) is the proper create syntax: zfs snapshot <dataset>@<snapname> - no subcommand keyword, just the verb…

Managing Data Storage

Question

The ZFS configuration on your server is:

Pool1 6.67G 31K /pool Pool1/data 31K 31K /data Select the three commands that you would use to 1. Create, 2. List, and 3. Delete a snapshot of the /data file system.

Options

  • Azfs snapshot pool1/data@now
  • Bzfs create snapshot pool1/data@now
  • Czfs list -t snapshot
  • Dzfs list -t snapshot pool1/data
  • Ezfs destroy pool1/data@now
  • Fzfs destroy snapshot pool1/data@now

How the community answered

(37 responses)
  • A
    95% (35)
  • D
    3% (1)
  • F
    3% (1)

Explanation

Options A, C, and E map exactly to ZFS's three-word syntax pattern: zfs snapshot, zfs list, and zfs destroy.

Why the correct answers work:

  • A (zfs snapshot pool1/data@now) is the proper create syntax: zfs snapshot <dataset>@<snapname> - no subcommand keyword, just the verb directly.
  • C (zfs list -t snapshot) uses the -t type filter to display all snapshots in the pool.
  • E (zfs destroy pool1/data@now) destroys the snapshot by its full dataset@snapname reference - the same way ZFS identifies any snapshot.

Why the distractors fail:

  • B is invalid - zfs create makes filesystems or volumes, not snapshots; there is no zfs create snapshot subcommand.
  • D (zfs list -t snapshot pool1/data) fails because it tries to display pool1/data filtered as type snapshot, but pool1/data is a filesystem - it returns nothing useful; you'd need -r to recursively list its snapshots.
  • F is invalid - zfs destroy takes no snapshot keyword; the dataset@snapname format is sufficient to identify it as a snapshot.

Memory tip: ZFS snapshot commands follow a "no extra keywords" rule - snapshot, list -t snapshot, and destroy all act directly on the dataset@name identifier; any answer that inserts an extra noun like "snapshot" as a subcommand argument is wrong.

Topics

#ZFS snapshots#snapshot operations#storage administration#Solaris file systems

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