RedHat EX200 Free Sample Exam Questions 2026

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Page: 1 / 28
Total Questions: 136

Questions & Answers PDF

• Question 1

  

  Configure the verification mode of your host account and the password as LDAP. And it can login successfully through ldapuser40. The password is set as 'password'. And the certificate can be downloaded from http://ip/dir/ldap.crt. After the user logs on the user has no host directory unless you configure the autofs in the following questions.

  • Explanation:
    system-config-authentication
    LDAP Server: ldap//instructor.example.com (In domain form, not write IP)
    OR
    # yum groupinstall directory-client (1.krb5-workstation 2.pam-krb5 3.sssd)
    # system-config-authentication
    1.User Account Database: LDAP
    2.LDAP Search Base DN: dc=example,dc=com
    3.LDAP Server: ldap://instructor.example.com (In domain form, not write IP) 4.Download CA Certificate
    5.Authentication Method: LDAP password
    6.Apply
    getent passwd ldapuser40
    

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• Question 2

  

  Notes:NFS NFS instructor.example.com:/var/ftp/pub/rhel6/dvdldap http//instructor.example.com/pub/EXAMPLE-CA-CERT

  • Install dialog package.
    

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• Question 3

  

  Configure the permissions of /var/tmp/fstabCopy the file /etc/fstab to /var/tmp/fstab. Configure the permissions of /var/tmp/fstab so that:the file /var/tmp/fstab is owned by the root user.the file /var/tmp/fstab belongs to the group root.the file /var/tmp/fstab should not be executable by anyone.the user natasha is able to read and write /var/tmp/fstab.the user harry can neither write nor read /var/tmp/fstab.all other users (current or future) have the ability to read /var/tmp/fstab.

  • Explanation:
    cp -a /etc/fstab /var/tmp
    cd /var/tmp
    ls -l
    getfacl /var/tmp/fstab
    chmod ugo-x /var/tmp/fstab
    [ No need to do this, there won't be execute permission for the file by default]
    # setfacl -m u:natasha:rw /var/tmp/fstab # setfacl -m u:harry:0 /var/tmp/fstab(zero)
    [Read permission will be there for all the users, by default. Check it using ls -l /var/tmp/fstab] Verify by
    [ ls -la /var/tmp/fstab]
    

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• Question 4

  

  Create a volume group, and set the size is 500M, the size of single PE is 16M. Create logical volume named lv0 in this volume group, set size is 20 PE, make it as ext3 file system, and mounted automatically under data.

  • Explanation:
    fdisk /dev/vda
    pvcreate /dev/vda3
    vgcreate --s 16M vg0 /dev/vda3
    lvcreate --n lv0 --l 20 vg0
    mkfs.ext3 /dev/mapper/vg0-lv0
    mkdir /data
    /etc/fstab:
    /dev/mapper/vg0-lv0 /data ext3 defaults 0 0
    mount --a
    mount | grep data
    

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• Question 5

  

  There is a local logical volumes in your system, named with shrink and belong to VGSRV volume group, mount to the /shrink directory. The definition of size is 320 MB.Requirement:Reduce the logical volume to 220 MB without any loss of data. The size is allowed between 200-260 MB after reducing.

  • Explanation:
    cd;umount /shrink
    e2fsck -f /dev/mapper/vgsrv-shrink
    resize2fs /dev/mapper/vgsrv-shrink 220M
    lvreduce -L 220M /dev/mapper/vgsrv-shrink
    mount -a
    

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• Question 6

  

  Part 2 (on Node2 Server)Task 2 [Installing and Updating Software Packages]Configure your system to use this location as a default repository:Also configure your GPG key to use this location

  • Explanation:
    [root@node1 ~]# vim /etc/yum.repos.d/redhat.repo
    [BaseOS]
    name=BaseOS
    baseurl=http://utility.domain15.example.com/BaseOS
    enabled=1
    gpgcheck=1
    gpgkey=http://utility.domain15.example.com/RPM-GPG-KEY-redhat-release
    [AppStream]
    name=AppStream
    baseurl=http://utility.domain15.example.com/AppStream
    enabled=1
    gpgcheck=1
    gpgkey=http://utility.domain15.example.com/RPM-GPG-KEY-redhat-release
    [root@node1 ~]# yum clean all
    [root@node1 ~]# yum repolist
    repo id repo name
    AppStream AppStream
    BaseOS BaseOS
    [root@node1 ~]# yum list all
    

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• Question 7

  

  Configure your web services, download from http://instructor.example.com/pub/serverX.html And the services must be still running after system rebooting.

  • Explanation:
    cd /var/www/html
    wget http://instructor.example.com/pub/serverX.html mv serverX.html index.html /etc/init.d/httpd restart
    chkconfig httpd on
    

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• Question 8

  

  Create User Account.Create the following user, group and group membership:Adminuser groupUser natasha, using adminuser as a sub groupUser Harry, also using adminuser as a sub groupUser sarah, can not access the SHELL which is interactive in the system, and is not a member of adminuser, natashaharrysarah password is redhat.

  • Explanation:
    groupadd adminuser
    useradd natasha -G adminuser
    useradd haryy -G adminuser
    useradd sarah -s /sbin/nologin
    Passwd user name // to modify password or echo redhat | passwd --stdin user name id natasha // to view user group.
    

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• Question 9

  

  Part 2 (on Node2 Server)Task 6 [Implementing Advanced Storage Features]Add a new disk to your virtual machine with a ize of 10 GiBOn this disk, create a VDO volume with a size of 50 GiB and mount it persistently on /vbread with xfs filesystem

  • Explanation:
    *
    [root@node2 ~]# lsblk
    NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
    vdd 252:48 0 5G 0 disk
    vde 252:64 0 10G 0 disk
    [root@node2 ~]# yum install kmod-kvdo vdo
    [root@node2 ~]# systemctl enable --now vdo
    [root@node2 ~]# systemctl start vdo
    [root@node2 ~]# systemctl status vdo
    [root@node2 ~]# vdo create --name=vdo1 --device=/dev/vde --vdoLogicalSize=50G
    [root@node2 ~]# vdostats --hu
    Device Size Used Available Use% Space saving%
    /dev/mapper/vdo1 10.0G 4.0G 6.0G 40% N/A
    [root@node2 ~]# mkfs.xfs -K /dev/mapper/vdo1
    *
    [root@node2 ~]# lsblk
    NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
    vde 252:64 0 10G 0 disk
    vdo1 253:4 0 50G 0 vdo
    [root@node2 ~]# mkdir /vbread
    [root@node2 ~]# blkid
    /dev/mapper/vdo1: UUID='1ec7a341-6051-4aed-8a2c-4d2d61833227' BLOCK_SIZE='4096' TYPE='xfs'
    [root@node2 ~]# vim /etc/fstab
    UUID=1ec7a341-6051-4aed-8a2c-4d2d61833227 /vbread xfs defaults,x-systemd.requires=vdo.service 0 0
    [root@node2 ~]# mount /dev/mapper/vdo1 /vbread/
    [root@node2 ~]# df -hT
    Filesystem Type Size Used Avail Use% Mounted on
    /dev/mapper/vdo1 xfs 50G 390M 50G 1% /vbread
    

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• Question 10

  

  Part 1 (on Node1 Server)Task 4 [Controlling Access to Files]Create collaborative directory /mnt/shares with the following characteristics:Group ownership of /mnt/shares should be sharegrp.The directory should be readable, writable and accessible to member of sharegrp but not to any other user. (It is understood that root has access to all files and directories on the system)Files created in /mnt/shares automatically have group ownership set to the sharegrp group.

  • Explanation:
    *
    [root@node1 ~]# mkdir -p /mnt/shares
    [root@node1 ~]# ls -lrt /mnt/
    [root@node1 ~]# chgrp sharegrp /mnt/shares/
    [root@node1 ~]# chmod 2770 /mnt/shares/
    [root@node1 ~]# ls -lrt /mnt/
    ### For Checking ###
    [root@node1 ~]# su - harry
    [harry@node1 ~]$ cd /mnt/shares/
    [harry@node1 shares]$ touch harry
    [harry@node1 shares]$ logout
    [root@node1 ~]# su - natasha
    [natasha@node1 ~]$ cd /mnt/shares/
    [natasha@node1 shares]$ touch natasha
    [natasha@node1 shares]$ ls -lrt
    -rw-rw-r--. 1 harry sharegrp 0 Mar 21 06:03 harry
    -rw-rw-r--. 1 natasha sharegrp 0 Mar 21 06:03 natasha
    

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Total Questions: 136

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