Oracle Oracle Certifications 1Z0-822 Questions & Answers

• Question 121:

  Review the following output from the zpool status command:

  

  Which three are true for pool1?

  A. It this mirror is split, the new pool will contain disks c3t5d0 and c3t6d0.

  B. If this mirror is split, by default the new pool will contain disks c3t3d0 and c3t5d0.

  C. Data is striped across mirror-0 and mirror-1.

  D. mirror-1 is a mirrored copy of data that is stored on mirror-0.

  E. Disk c3t3d0 is a mirrored copy of disk c3c4d0.

  F. If this mirror is split, pool1 will no longer be mirrored.

  Correct Answer: BDE

• Question 122:

  The zfs holds command displays the following information:

  

  Which two statements are true?

  A. Use zfs destroy d pool12/data@nov to destroy the snapshot immediately.

  B. Attempts to destroy the snapshot using zfs destroy pool12/data@nov will fail.

  C. Attempts to destroy the pool12/data@nov snapshot will not destroy the snapshot immediately.

  D. The zfs directory R pool12/data command will destroy the file system immediately.

  E. The defer_destroy property is set to on for the pool12/data@nov data set.

  F. The userrefs property is set to 1 (or higher) for the pool12/data@nov data set.

  Correct Answer: CE

• Question 123:

  Consider the following ZFS configuration:

  

  You have created snapshots of the homo directories which are as follows:

  

  You have another storage pool named bpool on the same system. You use the following command to store the snapshots in this pool:

  # zfs send rpool/export/[email protected] | zfs recv f [email protected]

  What will be created in the pool bpool as a result of this operation?

  A. bpool/export/home/ bpool/export/home/curly

  B. bpool/export/home/ bpool/export/home/curly bpool/export/[email protected]

  C. bpool/export/home/ bpool/export/home/curly [email protected]

  D. bpool/curly bpool/[email protected]

  E. bpool/curly

  F. bpool/curly [email protected]

  Correct Answer: A

• Question 124:

  Consider the following commands on a newly installed system:

  zfs set compression=on rpool zfs get H 0 source compression rpool

  What is the output of the second command?

  A. default

  B.

  C. local

  D. on

  Correct Answer: C

• Question 125:

  You want to create a ZFS file system with the following specifications: lzjb compression enabled ? Cannot consume more than 2 GB from the storage pool ? ?Redundant data at the block level eliminated Mounted as /data ?

  Which command creates the desired file system?

  A. zfs create o mountpoint=/data,compression=on,algorithm=lzjb,deduplication=on,quota=2g /pool1/data

  B. zfs create o mountpoint=/data compression=on algorithm=lzjb deduplication=on quota=2g /pool1/data

  C. zfs create o mountpoint=/data o compression=on o dedup=on o quota=2g /pool1/data

  D. zfs create o mountpoint=/data o compression=on o algorithm=lzjb o deduplication=on o quota=2g / pool1/data

  E. zfs create pool/data zfs set mountpoint=/data,quota=2g, dedup=on,compression=on /pool1/data

  Correct Answer: C

• Question 126:

  Which two zpool subcommands will permanently remove a submirror from active storage pool?

  A. remove

  B. detach

  C. destroy

  D. offline

  E. replace

  F. split

  G. zpool does not permit this operation on an active storage pool unless the submirror faults.

  Correct Answer: AB

• Question 127:

  Your task is to configure storage for an Oracle Solaris 11 system to support multiple web servers. Each web server will be contained in a separate zone. The system has an attached disk array configured as a JBOD (Just a Bunch Of Disks). The system also has an internal solid-state drive.

  The data accessed through the websites will be primarily read-only. The web servers are expected to be very busy, so configure the storage for maximum performance. Because the data is primarily static, but redundancy is required to maintain high availability in the event of a hardware failure. Data does not change often, but it is expected that the same data will be accessed many times throughout the day. Which configuration option best meets the data storage requirements?

  A. a raid2 storage pool with a separate log device

  B. a mirrored storage pool with a separate cache device

  C. a mirrored storage pool with a separate log device

  D. a three disk striped storage pool with a separate cache device

  E. a raidz1 storage pool with a separate log and cache device

  Correct Answer: B

• Question 128:

  The zpool configuration on serverA is:

  pool 1 c3t2d0 c3t3d0 pool 2 c3t4d0 c3t5d0

  The zpool configuration on servetB is:

  pool1 mirror-0 c3t2d0 c3t3d0 mirror-1 c3t4d0 c3t5d0

  Which option will modify the configuration on serverA to match serverB?

  A. zpool destroy pool2 zpool attach pool1 c3t4d0 c3t5d0

  B. zpool destroy pool2 zpool attach pool1 c3t2d0 c3t2d0 c3t4d0 c3t5d0

  C. zpool destroy pool2 zpool add pool1 c3t4d0 c3t5d0

  D. zpool destroy pool2 zpool mirror pool1 pool2

  E. zpool destroy pool2 zpool attach pool1 c3t2d0 attach pool1 c3t3d0 zpool attach pool1 c3t4d0 attach pool1 c3t5d0

  F. zpool destroy pool1; zpool destroy pool2; zpool create pool1 mirror c 3t2d0 c3t3d0 mirror c4t4d0 c3t5d0

  Correct Answer: F

• Question 129:

  Which is the result of the following command?

  # zfs send i dpool/sales/qrreports@qtrreport dpool/sales/qrreports@mth3qtrreport

  A. An error message will be sent to standard error.

  B. The dpool/sales/qrreports@qtrreport snapshot is saved to disk.

  C. The dpool/sales/qrreports@mth3qtrreport snapshot is saved to disk

  D. The difference between the First snapshot and the second snapshot will be written to disk

  Correct Answer: A

• Question 130:

  You have a ZFS pool that contains a hierarchy of data file systems. You create snapshots of the file systems and you created a clone (dpool/export/CID) of the dpool/export/home/CID file systems. The file systems are as follows:

  

  Now you remove a file from the cloned file system: root@sll-server1:~# rm /export/CID/core.bash.8070 How will space usage be changed for dpool/export/CID?

  A. The USED value will increase and the REFER value will decrease; the AVAIL value will be unchanged.

  B. The USED value will decrease and the REFER value will increase; the AVAIL value will increase.

  C. The USED value will decrease, the REFER value will decrease; the AVAIL value will increase.

  D. USED, REFER and the AVAIL value will be unchanged.

  Correct Answer: C