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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Understand and use essential tools | 25% | - Access shell prompt and issue commands with correct syntax - Use grep and regular expressions - Create/edit text files; manage files, directories, links, permissions - Archive, compress, unpack files using tar, gzip, bzip2 - Access remote systems via SSH - Use input-output redirection |
| Topic 2: Create and configure file systems | 15% | - Mount and manage network file systems (NFS, autofs) - Maintain entries in /etc/fstab using UUID or labels - Create and mount XFS, ext4, VFAT file systems - Manage access control lists (ACLs) |
| Topic 3: Manage security | 10% | - Enforce SELinux modes, contexts, booleans, and port labeling - Restore file contexts and troubleshoot SELinux issues |
| Topic 4: Configure local storage | 15% | - Configure swap space - List, create, delete partitions and GPT/MBR layouts - Create and manage LVM physical volumes, volume groups, logical volumes |
| Topic 5: Operate running systems | 20% | - Schedule tasks using cron and at - Boot systems into different targets; manage systemd units - Maintain accurate system time with chrony - Manage logging and journaling - Manage networking and network services |
| Topic 6: Manage users and groups | 10% | - Configure SSH key-based authentication - Manage password policies and sudo access - Create, delete, modify users and groups |
| Topic 7: Perform basic shell scripting | - Use conditional statements, loops, and script inputs | |
| Topic 8: Deploy, configure, and maintain systems | 15% | - Manage software packages with DNF/YUM - Configure firewalld firewall rules - Manage network interfaces and settings with NetworkManager/nmcli |
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NEW QUESTION # 14
Update the kernel from ftp://instructor.example.com/pub/updates.
According the following requirements:
* The updated kernel must exist as default kernel after rebooting the system.
* The original kernel still exists and is available in the system.
Answer:
Explanation:
see explanation below.
Explanation
rpm -ivh kernel-firm...
rpm -ivh kernel...
NEW QUESTION # 15
Your System is going use as a router for 172.24.0.0/16 and 172.25.0.0/16. Enable the IP Forwarding.
1. echo "1" >/proc/sys/net/ipv4/ip_forward
2. vi /etc/sysctl.conf net.ipv4.ip_forward=1
Answer:
Explanation:
/proc is the virtual filesystem, containing the information about the running kernel.
To change the parameter of running kernel you should modify on /proc. From Next reboot the system, kernel will take the value from /etc/sysctl.conf.
NEW QUESTION # 16
Notes:
NFS: NFS instructor.example.com:/var/ftp/pub/rhel6/dvd
YUM: http://instructor.example.com/pub/rhel6/dvd
ldap: http://instructor.example.com/pub/EXAMPLE-CA-CERT
Answer:
Explanation:
Install dialog package.
NEW QUESTION # 17
Add 3 users: harry, natasha, tom.
The requirements: The Additional group of the two users: harry, Natasha is the admin group. The user: tom's login shell should be non-interactive.
Answer:
Explanation:
see explanation below.
Explanation
# useradd -G admin harry
# useradd -G admin natasha
# useradd -s /sbin/nologin tom
# id harry;id Natasha (Show additional group)
# cat /etc/passwd
(Show the login shell)
OR
# system-config-users
NEW QUESTION # 18
Create a 1 GiB logical volume named lvbackup in volume group vgdata, format it with XFS, mount it on
/backup, and make it persistent.
Answer:
Explanation:
See the solution below in Explanation.
Explanation:
Solution:
lvcreate -L 1G -n lvbackup vgdata
mkfs.xfs /dev/vgdata/lvbackup
mkdir -p /backup
echo "/dev/vgdata/lvbackup /backup xfs defaults 0 0" > > /etc/fstab
mount -a
df -h /backup
Detailed Explanation:
* lvcreate allocates a new LV from the existing VG.
* mkfs.xfs creates the filesystem.
* /etc/fstab makes the mount persistent across reboot.
* mount -a tests the fstab entry immediately.
* RHEL 10 storage documentation continues to use LVM and XFS as core administration topics. ( Red
Hat Documentation )
NEW QUESTION # 19
......
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