Oracle Oracle Certifications 1Z0-105 Questions & Answers

• Question 61:

  You have a btrfs file system:

  

  You have mounted devices:

  

  You have an unmounted mount point for the btrfs file system:

  

  Which option represents the correct order to create subvolume DocumentsSV mounted on the new mount point /Documents?

  1.

  btrfs subvolume create /btrfs/DocumentsSV

  2.

  mkdir /btrfs/DocimentsSV

  3.

  mkdir /Documents

  4.

  mount LABEL=Btrfs /btrfs

  5.

  mount /btrfs/DocumentsSV /Documents/

  6.

  mount LABEL=Btrfs -o subvol-DocumentsSV /Documents

  7.

  btrrfs subvolume create /Documents

  A. 3, 4, 7, 5

  B. 4, 1, 3, 6

  C. 2, 4, 7, 6

  D. 4, 2, 3, 5

  Correct Answer: A

  Reference: https://docs.oracle.com/cd/E37670_01/E37355/html/ol_use_case3_btrfs.html

• Question 62:

  You are unable to mount a file system on the /dev/sdb1 device after the file system was converted to use a global heartbeat. Examine the ouput:

  

  Which command must you run to enable the file system to be correctly mounted on the cluster with global heartbeat?

  A. mkfs.osfc2 –F –L disk --cluster-name=mycluster –cluster-stack=o2cb /dev/sdb1

  B. tunefs.ocfs2 –update-cluster-stack /dev/sdb1

  C. fsck.osfs2 /dev/sdb1

  D. o2image –I /dev/sdb1

  Correct Answer: A

• Question 63:

  Which statement it true about a general cgroup hierarchy?

  A. Any sgroup subsystems may be mapped to any cgroup hierarchies provided that a maximum of three cgroup subsystems are mapped to one cgroup hierarchy.

  B. A single cgroup hierarchy must have a maximum of one cgroup subsystem attached to it.

  C. A single cgroup hierarchy can have one or multiple sgroup subsystems attached to it.

  D. A single sgroup subsystem cannot be attached to miltiple cgroup hierarchies.

  Correct Answer: C

  Reference: https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/6/html/ resource_management_guide/ch01

• Question 64:

  Which command would you see to establish iSCSI sessions to all known iSCSI targets?

  A. iscsiadm –m host -1

  B. iscsiadm –m node -1

  C. iscsiadm –m discoverydb -1

  D. iscsiadm –m session -1

  Correct Answer: B

• Question 65:

  Which two statements are true about a btrfs file system on a SSD flash disk? (Choose two.)

  A. The TRIM/discard feature is enabled by default.

  B. btrfs automatically turns off all optimizations for rotational media.

  C. btrfs automatically detects SSD.

  D. You must enable the SSD option during the creation of a btrfs file system.

  Correct Answer: BD

• Question 66:

  Consider the configuration requirements of an iSCSI client system.

  Which statement is correct?

  A. Installation of the iscsi-initiatir-utils package is a prerequisite for configuration of an iSCSI client.

  B. Installation of both iscsi-target-utils and iscsi-initiator-utils are prerequisites for configuration of an iSCSI client.

  C. Installation of the iscsi-target-utils package is the only prerequisite for configuration of an iSCSI client.

  D. Both the iscsi-initiator-utils package and an iSCSI host bus adapter (HBA) hardware device are prerequisites for configuration of an iSCSI client.

  Correct Answer: A

  Reference: https://docs.oracle.com/cd/E52668_01/E54669/html/ol7-s17-storage.html

• Question 67:

  Examine these commands and their output:

  

  The next command you run is:

  # xfs_growfs /xfs1

  What is the result of running this command?

  A. Only the data section is resized to occupy all available space of the underlying logical volume.

  B. It fails because a mounted XFS file system cannot be resized.

  C. Only the log section is resized to occupy all available space of the underlying logical volume.

  D. Both the data and log sections are resized to occupy all available space of the underlying logical volume.

  E. If fails because there is no size specified.

  F. The data, log and internal sections are resized to copy all available space of the underlying logical volume.

  Correct Answer: D

• Question 68:

  Which two statements are true about recursive nameservers that are supported by Oracle Linux? (Choose two.)

  A. They may forward requests to authoritative name resolution requests.

  B. They cache replies from previous name resolution requsts.

  C. They may be authoritative.

  D. They may be primary nameservers.

  E. They may be secondary nameservers.

  Correct Answer: AD

• Question 69:

  Examine the listing of the /users directory:

  

  While checking your assigned dick quotas on the /users file system, you receive the following errors:

  

  Identify the reason for these errors.

  A. The /users file system is mounted without the usrquota option.

  B. The /users file system is mounted without the grprquota option.

  C. Quotas are disabled with the quotaoff command.

  D. The permissions on /users/aquota.user are incorrect.

  Correct Answer: D

  Reference: https://linuxacademy.com/community/posts/show/topic/1177-problem-with-the-user-quotaslesson-lpic-101

• Question 70:

  Which statement is true about OCFS2's main allocation units?

  A. Cluster size can be changed after creating the file system.

  B. Cluster size must always be greater than the block size.

  C. Cluster size is always greater than or equal to the block size.

  D. Block size can be changed after creating the file system.

  Correct Answer: C

  Reference: https://oss.oracle.com/projects/ocfs2/dist/documentation/fasheh.pdf (2)