Red Hat EX200 Online Practice Questions and Exam Preparation

Red Hat EX200 Online Questions & Answers

• Question 71:

  Part 2 (on Node2 Server)

  Task 1 [Controlling the Boot Process]

  Interrupt the boot process and reset the root password. Change it to kexdrams to gain access to the system

  Correct Answer. Check the anser in explanation.
  Check the anser in explanation.

  ---

  *

  1.

  Reboot the server pressing by Ctrl+Alt+Del

  2.

  When the boot-loader menu appears, press the cursor keys to highlight the default boot- loader entry

  3.

  Press e to edit the current entry.

  4.

  Use the cursor keys to navigate to the line that starts with linux.

  5.

  Press End to move the cursor to the end of the line.

  6.

  Append rd.break to the end of the line.

  7.

  Press Ctrl+x to boot using the modified configuration.

  8.

  At the switch_root prompt

  *

  switch_root:/# mount -o remount,rw /sysroot

  switch_root:/# chroot /sysroot

  sh-4.4# echo kexdrams | passwd --stdin root

  Changing password for user root.

  passwd: all authentication tokens updated successfully.

  sh-4.4# touch /.autorelabel

  sh-4.4# exit; exit

  *

  Type exit twice to continue booting your system as usual.

• Question 72:

  Install the appropriate kernel update from http://server.domain11.example.com/pub/updates. The following criteria must also be met: The updated kernel is the default kernel when the system is rebooted The original kernel remains available and bootable on the system

  Correct Answer. Check the anser in explanation.
  Check the anser in explanation.

  ---

  ftp server.domain11.example.com Anonymous login ftp> cd /pub/updates ftp> ls ftp> mget kernel* ftp> bye rpm -ivh kernel* vim /etc/grub.conf Check the updatted kernel is the first kernel and the orginal kernel remains available. set default=0 wq!

• Question 73:

  Search a String

  Find out all the columns that contains the string seismic within /usr/share/dict/words, then copy all these columns to /root/lines.tx in original order, there is no blank line, all columns must be the accurate copy of the original columns.

  Correct Answer. Check the anser in explanation.
  Check the anser in explanation.

  ---

  grep seismic /usr/share/dict/words> /root/lines.txt

• Question 74:

  Part 1 (on Node1 Server)

  Task 12 [Accessing Network-Attached Storage]

  Configure autofs to automount the home directories of user remoteuserX. Note the following:

  utility.domain15.example.com(172.25.15.9), NFS-exports /netdir to your system, where user is remoteuserX where X is your domain number

  remoteuserX home directory is utility.domain15.example.com:/netdir/remoteuserX

  remoteuserX home directory should be auto mounted locally at /netdir as /netdir/remoteuserX

  Home directories must be writable by their users while you are able to login as any of the remoteuserX only home directory that is accessible from your system

  Correct Answer. Check the anser in explanation.
  Check the anser in explanation.

  ---

  * [root@host ~]#systemctl enable sssd.service [root@host ~]#systemctl start sssg.service [root@host ~]#getent passwd remoteuser15 [root@host ~]#yum install autofs [root@host ~]#vim /etc/auto.master.d/home9.autofs /netdir/remoteuser15 /etc/auto.home9 [root@host ~]#vim /etc/auto.home9 remoteuser15 –rw,sync utility.network15.example.com:/netdir/remoteuser15/and [root@host ~]#systemctl enable autofs [root@host ~]#systemctl restart autofs [root@host ~]#su - remoteuser15

• Question 75:

  Configure the FTP service in your system, allow remote access to anonymous login and download the program by this service. Service is still running after system rebooting.

  Correct Answer. Check the anser in explanation.
  Check the anser in explanation.

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  yum install vsftpd /etc/init.d/vsftpd start chkconfig vsftpd on

• Question 76:

  Configure a task: plan to run echo "file" command at 14:23 every day.

  Correct Answer. Check the anser in explanation.
  Check the anser in explanation.

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  (a) Created as administrator # crontab -u natasha -e 23 14 * * * /bin/echo "file" (b)Created as natasha # su - natasha $ crontab -e 23 14 * * * /bin/echo "file"

• Question 77:

  Configure your system so that it is an NTP client of server.domain11.example.com

  Correct Answer. Check the anser in explanation.
  Check the anser in explanation.

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  #system-config-date Note: dialog box will open in that Check mark Synchronize date and time over network. Remove all the NTP SERVER and click ADD and type server.domain11.example.com ****************And then press ENTER and the press OK***************

• Question 78:

  Find the files owned by harry, and copy it to catalog: /opt/dir

  Correct Answer. Check the anser in explanation.
  Check the anser in explanation.

  ---

  # cd /opt/

  # mkdir dir

  # find / -user harry -exec cp -rfp {} /opt/dir/ \;

• Question 79:

  Configure the system synchronous as 172.24.40.10.

  Correct Answer. Check the anser in explanation.
  Check the anser in explanation.

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  Graphical Interfaces: System-->Administration-->Date and Time OR # system-config-date

• Question 80:

  Create a backup

  Create a backup file named /root/backup.tar.bz2, contains the content of /usr/local, tar must use bzip2 to compress.

  Correct Answer. Check the anser in explanation.
  Check the anser in explanation.

  ---

  cd /usr/local tar –jcvf /root/backup.tar.bz2 mkdir /test tar –jxvf /root/backup.tar.bz2 –C /test// Decompression to check the content is the same as the /usr/loca after If the questions require to use gzip to compress. change –j to –z.