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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Understand and Use Essential Tools | 15-20% | - Use grep and regular expressions - Archive, compress, unpack, and uncompress files - Access and search the command line - Create and edit text files - Use redirection, pipe, and command chaining - Locate, read, and use system documentation |
| Topic 2: Manage Networking | 10-15% | - Configure IPv4 and IPv6 addresses - Configure hostname resolution - Edit /etc/hosts - Configure network services to start automatically |
| Topic 3: Operate Running Systems | 15-20% | - Access a virtual machine's console - Boot systems into different targets manually - Boot, reboot, and shut down a system - Describe the boot process and systemd basics - Locate and interpret system log files - Identify CPU/memory intensive processes - Adjust process scheduling and priority - Start and stop virtual machines - Interrupt the boot process to gain access to a system |
| Topic 4: Create and Configure File Systems | 10-15% | - Mount, unmount, and use LUKS-encrypted partitions - Create, mount, unmount, and use ext2, ext3, and ext4 filesystems - Configure systems to mount file systems at boot - Configure systems to mount swap space at boot |
| Topic 5: Manage Security | 10-15% | - Configure key-based authentication for SSH - Set file permissions and ownership - Configure SE Linux modes and policies - Configure firewall settings using firewalld and iptables |
| Topic 6: Configure Local Storage | 15-20% | - List, create, delete partitions on MBR and GPT disks - Create and configure ext4, xfs, and vfat filesystems - Configure LVM storage with command-line tools - Mount, unmount, and use NFS, SMB, and autofs - Configure and manage swap space - Configure system to mount filesystem at boot - Configure disk quotas |
| Topic 7: Manage Users and Groups | 10-15% | - Manage sudo access to users and groups - Create, delete, and modify local user accounts - Create, delete, and modify local groups - Set password aging and lock policies |
| Topic 8: Deploy, Configure, and Maintain Systems | 15-20% | - Modify the system bootloader - Configure time zones and NTP synchronization - Install and update software from Red Hat Network, satellite, or local repositories - Schedule tasks using at, cron, and systemd timers |
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NEW QUESTION # 21
: 107 SIMULATION
Add an additional swap partition of 754 MB to your system.
The swap partition should automatically mount when your system boots.
Do not remove or otherwise alter any existing swap partitions on your system.
Answer:
Explanation:
see explanation below.
Explanation
* fdisk -l
* fdisk -cu /dev/vda
p n
e or p select e
default (first): enter
default (last): enter n
default(first): enter
default(first): +754M t (1-5)
l: 82 p
w #reboot
#mkswap /dev/vda5
* vim /etc/fstab
/dev/vda5 swap swap defaults 0 0
wq
* mount -a
* swapon -a
* swapon -s
NEW QUESTION # 22
Create a Collaborative Directory
Create a shared directory /home/managers with the following characteristics:
- The group ownership of /home/managers is sysmgrs.
- The directory should be readable, writable, and executable by members of the sysmgrs group, but should not have read or write permissions for any other users (of course, the root user has access to all files and folders).
- Any files created within /home/managers should automatically inherit the group ownership set to the sysmgrs group.
Answer:
Explanation:
[root@node1 ~]# mkdir /home/managers
[root@node1 ~]# chgrp sysmgrs /home/managers
[root@node1 ~]# chmod 2770 /home/managers
# Verification
[root@node1 ~]# ll -d /home/managers
NEW QUESTION # 23
There is a server having 172.24.254.254 and 172.25.254.254. Your System lies on 172.24.0.0/16. Make successfully ping to 172.25.254.254 by Assigning following IP: 172.24.0.x where x is your station number.
Answer:
Explanation:
see explanation below.
Explanation
* Use netconfig command
* Enter the IP Address as given station number by your examiner: example: 172.24.0.1
* Enter Subnet Mask
* Enter Default Gateway and primary name server
* press on ok
* ifdown eth0
* ifup eth0
* verify using ifconfig
In the lab server is playing the role of router, IP forwarding is enabled. Just set the Correct IP and gateway, you can ping to 172.25.254.254.
NEW QUESTION # 24
Which security issues exist for most publicly available Vagrant boxes? (Choose three correct answers.)
Answer: A,B,D
Explanation:
Explanation/Reference:
Reference https://www.vagrantup.com/docs/boxes/base.html
NEW QUESTION # 25
Configure autofs to automount the home directories of LDAP users as follows:
host.domain11.example.com NFS-exports /home to your system.
This filesystem contains a pre-configured home directory for the user ldapuser11 ldapuser11's home directory is host.domain11.example.com /rhome/ldapuser11 ldapuser11's home directory should be automounted locally beneath /rhome as /rhome/ldapuser11 Home directories must be writable by their users ldapuser11's password is 'password'.
Answer:
Explanation:
see explanation below.
Explanation
* vim /etc/auto.master /rhome /etc/auto.misc
wq!
# vim /etc/auto.misc
ldapuser11 --rw,sync host.domain11.example.com:/rhome/ldpauser11 :wq!
#service autofs restart
* service autofs reload
* chkconfig autofs on
* su -ldapuser11
Login ldapuser with home directory
# exit
NEW QUESTION # 26
......
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