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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Create and configure file systems | 15% | - Mount and manage network file systems (NFS, autofs) - Create and mount XFS, ext4, VFAT file systems - Manage access control lists (ACLs) - Maintain entries in /etc/fstab using UUID or labels |
| Topic 2: Manage users and groups | 10% | - Configure SSH key-based authentication - Manage password policies and sudo access - Create, delete, modify users and groups |
| Topic 3: Operate running systems | 20% | - Schedule tasks using cron and at - Maintain accurate system time with chrony - Manage networking and network services - Manage logging and journaling - Boot systems into different targets; manage systemd units |
| Topic 4: Understand and use essential tools | 25% | - Use input-output redirection - Access shell prompt and issue commands with correct syntax - Archive, compress, unpack files using tar, gzip, bzip2 - Create/edit text files; manage files, directories, links, permissions - Access remote systems via SSH - Use grep and regular expressions |
| Topic 5: Perform basic shell scripting | - Use conditional statements, loops, and script inputs | |
| Topic 6: Configure local storage | 15% | - List, create, delete partitions and GPT/MBR layouts - Create and manage LVM physical volumes, volume groups, logical volumes - Configure swap space |
| Topic 7: Manage security | 10% | - Restore file contexts and troubleshoot SELinux issues - Enforce SELinux modes, contexts, booleans, and port labeling |
| 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 # 33
Configure a firewall rule to allow the http service permanently.
Answer:
Explanation:
See the solution below in Explanation.
Explanation:
Solution:
firewall-cmd --permanent --add-service=http
firewall-cmd --reload
firewall-cmd --list-services
Detailed Explanation:
* --permanent saves the rule.
* --reload applies it.
* --list-services verifies the active configuration.
* Firewalld remains the standard firewall interface in RHEL 10. ( Red Hat Documentation )
NEW QUESTION # 34
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.
Answer:
Explanation:
see explanation below.
Explanation
lvextend -L 190M /dev/mapper/vgsrv-common resize2fs /dev/mapper/vgsrv-common
NEW QUESTION # 35
Create a backup file named /root/backup.tar.bz2, which contains the contents of /usr/local, bar must use the bzip2 compression.
Answer:
Explanation:
cd /usr/local
tar -jcvf /root/backup.tar.bz2*
mkdir /test
tar -jxvf /root/backup.tar.bz2 -C /test/
NEW QUESTION # 36
Part 2 (on Node2 Server)
Task 7 [Implementing Advanced Storage Features]
Create a thin-provisioned filesystem with the name think_fs from a pool think_pool using the devices.
The filesystem should be mounted on /strav and must be persistent across reboot
Answer:
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
└─vdo1 253:4 0 50G 0 vdo /vbread
[root@node2 ~]# yum install stratis* -y
[root@node2 ~]# systemctl enable --now stratisd.service
[root@node2 ~]# systemctl start stratisd.service
[root@node2 ~]# systemctl status stratisd.service
[root@node2 ~]# stratis pool create think_pool /dev/vdd
[root@node2 ~]# stratis pool list
Name Total Physical Properties
think_pool 5 GiB / 37.63 MiB / 4.96 GiB ~Ca,~Cr
* [root@node2 ~]# stratis filesystem create think_pool think_fs
[root@node2 ~]# stratis filesystem list
Pool Name Name Used Created Device UUID
think_pool think_fs 546 MiB Mar 23 2021 08:21 /stratis/think_pool/think_fs ade6fdaab06449109540c2f3fdb9417d
[root@node2 ~]# mkdir /strav
[root@node2 ~]# lsblk
[root@node2 ~]# blkid
/dev/mapper/stratis-1-91ab9faf36a540f49923321ba1c5e40d-thin-fs-ade6fdaab06449109540c2f3fdb9417d: UUID="ade6fdaa-b064-4910-9540-c2f3fdb9417d" BLOCK_SIZE="512" TYPE="xfs"
* [root@node2 ~]# vim /etc/fstab
UUID=ade6fdaa-b064-4910-9540-c2f3fdb9417d /strav xfs defaults,x-systemd.requires=stratisd.service 0 0
[root@node2 ~]# mount /stratis/think_pool/think_fs /strav/
[root@node2 ~]# df -hT
/dev/mapper/stratis-1-91ab9faf36a540f49923321ba1c5e40d-thin-fs-ade6fdaab06449109540c2f3fdb9417d xfs 1.0T 7.2G 1017G 1% /strav
NEW QUESTION # 37
Download ftp://192.168.0.254/pub/boot.iso to /root, and mounted automatically under /media/cdrom and which take effect automatically at boot-start.
Answer:
Explanation:
# cd /root; wget ftp://192.168.0.254/pub/boot.iso
# mkdir -p /media/cdrom
# vim /etc/fstab
/root/boot.iso /media/cdrom iso9660 defaults,loop 0 0
# mount -a
mount [-t vfstype] [-o options] device dir
NEW QUESTION # 38
......
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