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Oracle 1z0-105 Exam Practice Questions (P. 4)

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Question #16
Examine the udevadm command:
udevadm info --query=all --name=/dev/sdb
What does this command display?
  1. A
    the device tree, and all properties maintained in sysfs for all parent devices in the device tree for the /dev/sdb disk device
  2. B
    all properties maintained in sysfs for the /dev/sdb kernel device, excluding parent devices
  3. C
    all properties maintained in devfs for the /dev/sdb kernel device, excluding parent devices
  4. D
    the device tree, and all properties maintained in devfs for the /dev/sdb device, including properties of all parent devices in the device tree for the /dev/sdb

Correct Answer:
D

Question #17
Which two statements are true about the configuration of kdump for capturing a dump image after a kernel crash?
  1. A
    kdump uses kexec to reboot the failed kernel and then captures a dump image.
  2. B
    The crashkernel boot parameter must be added to the kernel line in the /boot/grub.conf file to enable kdump.
  3. C
    The memory used for crashkernel is always at the same physical address.
  4. D
    kdump requires no parameters because it is enabled by default.
  5. E
    kdump uses kexec to boot a second kernel, which then captures a dump image.

Correct Answer:
AB

Question #18
Which three statements are true about the Kickstart installation method?
  1. A
    It always requires a Kickstart file.
  2. B
    The system must be booted manually with the ks= option.
  3. C
    It automates the installation of Oracle Linux.
  4. D
    It creates a Kickstart file.
  5. E
    It requires local access to the installation media.
  6. F
    It requires a PXE boot from the network.

Correct Answer:
CEF
Reference: http://docs.oracle.com/cd/E37670_01/E41137/html/ch03s02.html

Question #19
Examine the sequence:
# sealert l dda34207-61fd-4de2-831d-039c79270864
SELinux is preventing /usr/sbin/httpd from read access on the file /var/www/manual/new_features_2_2.html.
***** Plugin restorecon (85.9 confidence) suggests *****
If you want to fix the label.
/var/www/manual/new_features_2_2.html default label should be httpd_sys_content_t.
Then you can run restorecon.

Do -
# /sbin/restorecon v /var/www/manual/new_features_2_2.html
***** Plugin catchall_boolen (7.33 confidence) suggests *****
If you want to allow httpd to read user content
Then you must tell SELinux about this by enabling the httpd_read_user_content boolean. You can read user_selinux man page for more details.

Do -
setsebool P httpd_read_user_content 1
What action must you take for fix this problem?
  1. A
    Relabel the file in question by using the restorecon command.
  2. B
    Allow httpd to read user content by using the setsebool command.
  3. C
    Allow httpd to read home directories by using the setsebool command.
  4. D
    Report a bug.
  5. E
    Generate a local policy by using the audit2allow command.

Correct Answer:
B

Question #20
Which two statements are true about SELinux in enforcing mode?
  1. A
    Access to object is based solely on user identity and ownership.
  2. B
    Discretionary Access Control is ignored.
  3. C
    Mandatory Access Control is checked before Discretionary Access Control.
  4. D
    Discretionary Access Control is checked before Mandatory Access Control.
  5. E
    Access is denied unless permitted by SELinux.
  6. F
    Access is permitted unless denied by SELinux.

Correct Answer:
DE
Reference: http://docs.oracle.com/cd/E37670_01/E36387/html/ol_selinux_sec.html

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