RedHat Red Hat Certification EX294 Questions & Answers

• Question 1:

  There were two systems:

  system1, main system on which most of the configuration take place system2, some configuration here

  Configure port forwarding.

  Configure server X to forward traffic incoming on port 80/tcp from source network 172.25.X.0/255.255.255.0 to port on 5243/tcp.

  A. Answer: See the for complete Solution below.

  Correct Answer: A

  

• Question 2:

  There were two systems:

  system1, main system on which most of the configuration take place system2, some configuration here

  SSH configuration.

  Configure SSH access on your virtual hosts as follows.

  Clients within my22ilt.org should NOT have access to ssh on your systems

  A. Answer: See the for complete Solution below.

  Correct Answer: A

  

  Save and Exit (:wq) Then run this:

  

  Optional:

  

• Question 3:

  There were two systems:

  system1, main system on which most of the configuration take place system2, some configuration here

  Configure repository.

  Create a Repository for your virtual machines. The URL is http://station.network.0.example.com/content/ rhel7.0/x86_64/dvd

  A. Answer: See the for complete Solution below.

  Correct Answer: A

  

  Save and Exit (:wq) Then run this:

  

• Question 4:

  There were two systems:

  system1, main system on which most of the configuration take place system2, some configuration here Configure selinux.

  Configure your systems that should be running in Enforcing.

  A. Answer: See the for complete Solution below.

  Correct Answer: A

  

  After reboot and verify with this command

  

• Question 5:

  Give Full Permission to owner user and owner group member but no permission to others on /data.

  A. Answer: See the for complete Solution below.

  Correct Answer: A

  We can change the permission of file/directory either character symbol method or numeric method. Permission: r-Read w-Write x-Execute Permission Category u- Owner User g- Owner Group o- Others Operators + -> Add the Permissions - ->Remove the Permissions = ->Assign the Permissions Numeric Method: 4 -> Read 2 -> Write 1 -> Execute Total: 7, total for owner user, owner group member and for others: 777

  1.

  chmod u+rwx /data

  2.

  chmod g+rwx /data

  3.

  chmod o-rwx /data or chmod 770 /data

  4.

  Verify the /data: ls -ld /data 5 .You will get drwxrwx--

• Question 6:

  Add a cron schedule to take full backup of /home on every day at 5:30 pm to /dev/st0 device.

  A. Answer: See the for complete Solution below.

  Correct Answer: A

  1.

  vi /var/schedule 30 17 * * * /sbin/dump -0u /dev/st0 /dev/hda7

  2.

  crontab /var/schedule

  3.

  service crond restart

  We can add the cron schedule either by specifying the scripts path on /etc/crontab file or by creating on text file on crontab pattern.

  cron helps to schedule on recurring events. Pattern of cron is: Minute Hour Day of Month Month Day of Week Commands

  0-59 0-23 1-31 1-12 0-7 where 0 and 7 mean Sunday.

  Note * means every. To execute the command on every two minutes */2.

• Question 7:

  Whoever creates the file on /data make automatically owner group should be the group owner of /data directory.

  A. Answer: See the for complete Solution below.

  Correct Answer: A

  When user creates the file/directory, user owner will be user itself and group owner will be the primary group of the user. There is one Special Permission SGID, when you set the SGID bit on directory. When users create the file/directory automatically owner group will be same as a parent.

  1.

  chmod g+s /data

  2.

  Verify using: ls -ld /data You will get: drwxrws--

• Question 8:

  One Package named zsh is dump on ftp://server1.example.com under pub directory. Install the package from ftp server.

  A. Answer: See the for complete Solution below.

  Correct Answer: A

  1.

  rpm -ivh ftp://server1.example.com/pub/zsh-*

  2.

  Package will install

  rpm command is used to install, update and remove the package, -i means install, -v means verbose and - h means display the hash mark.

• Question 9:

  There are Mail servers, Web Servers, DNS Servers and Log Server. Log Server is already configured. You should configure the mail server, web server and dns server to send the logs to log server.

  A. Answer: See the for complete Solution below.

  Correct Answer: A

  According to question, log server is already configured. We have to configure the mail, web and dns server for log redirection. In mail, web and dns server:

  1.

  vi /etc/syslog.conf mail.* @logserveraddress

  2.

  service syslog restart

  mail is the facility and * means the priority. It sends logs of mail services into log server.

• Question 10:

  Whoever creates the files/directories on /storage group owner should be automatically should be the same group owner of /storage.

  A. Answer: See the for complete Solution below.

  Correct Answer: A

  1.

  chmod g+s /storage

  2.

  Verify using: ls -ld /storage

  Note:

  Permission should be like:

  drwxrws--- 2 root sysusers 4096 Mar 16 18:08 /storage If SGID bit is set on directory then who every users creates the files on directory group owner automatically the owner of parent directory.

  To set the SGID bit: chmod g+s directory

  To Remove the SGID bit: chmod g-s directory