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Free Oracle 1z0-105 Exam Questions (page: 3)

Page 3 of 44
PDF with 172 Questions

Examine the parameters shown using the sysctl command relating to panic situations:
[root@WAYOUT etc]# sysctl –a |grep panic |grep –v hung
kernel.panic = 0
kernel.panic_on_oops = 0
kernel.softlockup_panic = 0
kernel.unknown_nmi_panic = 0
kernel.panic_on_unrecovered_nmi = 0
kernel.panic_on_io_nmi = 0
kernel.panic_on_oom = 2
[root@WAYOUT etc]# sysctl –a |grep hung

kernel.hung_task_panic = 0
kernel.hung_task_chek_count – 4194304
kernel.hung_task_timeout_secs = 120
kernel.hung_task_warnings = 10

Which two statements are true about system behavior?

  1. The kernel delays panic for a few seconds if a bug is encountered to allow the klogd kernel logging daemon to log the oops output.
  2. The kernel panics if a kernel thread sleeps in the TASK_UNINTERRUPTABLE state for more than 120 seconds.
  3. The kernel attempts to continue if a bug is encountered.
  4. The kernel always panics if an out-of-memory condition arises.
  5. The kernel tries to kill some memory-consuming processes to avoid a panic if an out-of- memory condition arises.
  6. The kernel panics if a user thread sleeps in the TASK_UNINTERRUPTABLE state for more than 120 seconds.

Answer(s): B,F



Which two options prevent unauthorized access to the named service from the rndc utility on Oracle Linux?

  1. running rndc-confgen –a to generate a key that can be used by both the named service and the rndc
    utility
  2. running rndc-confgen –a to generate a key that can be used only by the named service
  3. running rndc –k /etc/rndc.key to generate a key to be used only by the rndc utility
  4. the presence of /etc/named.conf with the line include “/etc/rndc.key”; to allow the named service to check for a matching key from the rndc utility

Answer(s): A,D


Reference:

http://www.oracle.com/us/technologies/linux/suse-linux-to-oracle-linux-wp-1898710.pdf (page 49)



After creating empty mount point /xfs1, you execute the command:
# mkfs –t xfs –L /xfs1 –l logdev=/dev/sdd1 /dev/sdh1

Which two statements are true about the effects of executing the mkfs command?

  1. It fails if there is an existing XFS file system on /dev/sdh1.
  2. It fails if there is an existing XFS log on /dev/sdd1.
  3. It fails if there is an existing XFS file system on /dev/sdd1.
  4. It fails because there is no size specified for the XFS log.
  5. The xfs1 file system is mounted automatically during system startup.
  6. It creates and mounts the /xfs1 file system.

Answer(s): D,F



Examine the contents of /etc/mail/access:


This system is to be used as an MTA or mail gateway for the local LAN network address 192.168.1.0/24. Which two actions allow this mail host to route email for the network?

  1. Run sendmail again; and the updated file can be accessed automatically.
  2. Add this line to /etc/mail/access:
  3. Add this line to /etc/mail/access:
  4. Add this line to /etc/mail/access:
  5. Rebuild the access database file after the source files have been modified. Restarting the sendmail service automatically rebuilds the maps.

Answer(s): D,E



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