Exam 1z0-820 topic 1 question 62 discussion

Actual exam question from Oracle's 1z0-820

Question #: 62
Topic #: 1

New features wore added to ZFS in Oracle Solaris11. Your justification to upgrade from Solaris10 to oracle Solaris11 is that it will be possible to take advantage of the enhancements that were made to ZFS.
Identify the three ZFS functions and features that are included in Oracle Solaris 11, but not in Solaris 10.

A. Encrypted ZFS datasets
B. Ability for ZFS to detect and remove redundant data from the tile system
C. Shadow Data Migration
D. Ability to split a mirrored ZFS storage pool
E. Ability to use ZFS on the boot drive and boot to a ZFS root file system.
F. elimination of the swap file system when using ZFS on the root disk

Show Suggested Answer

Suggested Answer: ABE 🗳️
A: ZFS encryption was introduced in ZFS Pool Version Number 30, Solaris Nevada b149.
Filesystem encryption since Solaris 11 Express
B: Deduplication was introduced in ZFS Pool Version Number 21, Solaris Nevada b128.
E: Booting From a ZFS Root File System
Both SPARC based and x86 based systems use the new style of booting with a boot archive, which is a file system image that contains the files required for booting. When a system is booted from a ZFS root file system, the path names of both the boot archive and the kernel file are resolved in the root file system that is selected for booting.
Reference: Oracle Solaris ZFS Administration Guide, Booting From a ZFS Root File System

by [deleted] at April 4, 2025, 12:07 p.m.

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