Red Hat EX200 Online Practice Questions and Exam Preparation

Red Hat EX200 Online Questions & Answers

• Question 101:

  A YUM source has been provided in the http://instructor.example.com/pub/rhel6/dvd Configure your system and can be used normally.

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

  ---

  /etc/yum.repos.d/base.repo [base] name=base baseurl=http://instructor.example.com/pub/rhel6/dvd gpgcheck=0 yum list

• Question 102:

  User mary must configure a task.

  Requirement: The local time at 14:23 every day echo "Hello World.".

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

  ---

  crontab -u mary -e

  23 14 * * * echo "Hello World."

• Question 103:

  1.

  Find all sizes of 10k file or directory under the /etc directory, and copy to /tmp/findfiles directory.

  2.

  Find all the files or directories with Lucy as the owner, and copy to /tmp/findfiles directory.

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

  ---

  (1)find /etc -size 10k -exec cp {} /tmp/findfiles \;

  (2)find / -user lucy -exec cp -a {} /tmp/findfiles \;

  Note: If find users and permissions, you need to use cp - a options, to keep file permissions and user attributes etc.

• Question 104:

  There is a local logical volumes in your system, named with common and belong to VGSRV volume group, mount to the /common directory. The definition of size is 128 MB.

  Requirement:

  Extend the logical volume to 190 MB without any loss of data. The size is allowed between 160-160 MB after extending.

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

  ---

  lvextend -L 190M /dev/mapper/vgsrv-common resize2fs /dev/mapper/vgsrv-common

• Question 105:

  One Package named zsh is dump on ftp://server1.example.com under /pub/updates directory and your FTP server is 192.168.0.254. Install the package zsh.

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

  ---

  1.

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

  2.

  Login to ftp server : ftp ftp://server1.example.com using anonymous user.

  3.

  Change the directory: cd pub and cd updates

  4.

  Download the package: mget zsh-*

  5.

  Quit from the ftp prompt : bye

  6.

  Install the package

  7.

  rpm -ivh zsh-*

  8.

  Verify either package is installed or not : rpm -q zsh

• Question 106:

  Install a FTP server, and request to anonymous download from /var/ftp/pub catalog. (it needs you to configure yum direct to the already existing file server.)

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

  ---

  # cd /etc/yum.repos.d # vim local.repo [local] name=local.repo baseurl=file:///mnt enabled=1 gpgcheck=0 # yum makecache # yum install -y vsftpd # service vsftpd restart # chkconfig vsftpd on # chkconfig --list vsftpd # vim /etc/vsftpd/vsftpd.conf anonymous_enable=YES

• Question 107:

  According the following requirements to create user, user group and the group members:

  -A group named admin.

  -

  A user named mary, and belong to admin as the secondary group.

  -

  A user named alice, and belong to admin as the secondary group.

  -

  A user named bobby, bobby's login shell should be non-interactive. Bobby not belong to admin as the secondary group. Mary, Alice, bobby users must be set "password" as the user's password.

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

  ---

  groupadd admin useradd -G admin mary useradd -G admin alice useradd -s /sbin/nologin bobby echo "password" | passwd --stdin mary echo "password" | passwd --stdin alice echo "password" | passwd --stdin bobby

• Question 108:

  According the following requirements, configure autofs service and automatically mount to user's home directory in the ldap domain.

  -

  Instructor.example.com (192.168.0.254) has shared /home/guests/ldapuserX home directory to your system by over NFS export, X is your hostname number.

  -

  LdapuserX's home directory is exist in the instructor.example.com: /home/ guests/ldapuserX

  -

  LdapuserX's home directory must be able to automatically mount to /home/ guests/ldapuserX in your system.

  -

  Home directory have write permissions for the corresponding user.

  However, you can log on to the ldapuser1 - ldapuser99 users after verification. But you can only get your corresponding ldapuser users. If your system's hostname is server1.example.com, you can only get ldapuser1's home directory.

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

  ---

  mkdir –p /home/guests

  cat /etc/auto.master:

  /home/guests /etc/auto.ldap

  cat /etc/auto.ldap:

  ldapuser1 -rw instructor.example.com:/home/guests/ldapuser1

  automatically mount all the user's home directory #* -rw instructor.example.com:/home/guests/and

• Question 109:

  Successfully resolve to server1.example.com where your DNS server is 172.24.254.254.

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

  ---

  vi /etc/resolv.conf

  nameserver 172.24.254.254

  host server1.example.com

  On every clients, DNS server is specified in /etc/resolv.conf. When you request by name it tries to resolv from DNS server.

• Question 110:

  Add user: user1, set uid=601 Password: redhat The user's login shell should be non-interactive.

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

  ---

  # useradd -u 601 -s /sbin/nologin user1 # passwd user1 redhat