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| Section | Weight | Objectives |
|---|---|---|
| Manage users and groups | 10% | - Create, delete, modify users and groups - Manage password policies and sudo access - Configure SSH key-based authentication |
| Configure local storage | 15% | - Create and manage LVM physical volumes, volume groups, logical volumes - Configure swap space - List, create, delete partitions and GPT/MBR layouts |
| Manage security | 10% | - Restore file contexts and troubleshoot SELinux issues - Enforce SELinux modes, contexts, booleans, and port labeling |
| Understand and use essential tools | 25% | - Access shell prompt and issue commands with correct syntax - Access remote systems via SSH - Archive, compress, unpack files using tar, gzip, bzip2 - Use grep and regular expressions - Create/edit text files; manage files, directories, links, permissions - Use input-output redirection |
| Operate running systems | 20% | - Boot systems into different targets; manage systemd units - Schedule tasks using cron and at - Maintain accurate system time with chrony - Manage networking and network services - Manage logging and journaling |
| Create and configure file systems | 15% | - Mount and manage network file systems (NFS, autofs) - Manage access control lists (ACLs) - Maintain entries in /etc/fstab using UUID or labels - Create and mount XFS, ext4, VFAT file systems |
| Perform basic shell scripting | - Use conditional statements, loops, and script inputs | |
| 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 # 39
Find the files owned by harry, and copy it to catalog: /opt/dir
Answer:
Explanation:
# cd /opt/
# mkdir dir
# find / -user harry -exec cp -rfp {} /opt/dir/ \;
NEW QUESTION # 40
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 # 41
What implications does container virtualization have for DevOps? (Choose two answers.)
Answer: B,E
Explanation:
Explanation/Reference:
Reference http://anandmanisankar.com/posts/container-docker-PaaS-microservices/
NEW QUESTION # 42
Build a Podman image, enable lingering for user alex, generate a systemd unit for a user container, and enable it.
Answer:
Explanation:
See the solution below in Explanation.
Explanation:
Solution:
podman build -t myimage -f Containerfile .
loginctl enable-linger alex
cd ~/.config/systemd/user/
podman generate systemd --name mycontainer --files --new
systemctl --user daemon-reload
systemctl --user enable --now container-mycontainer.service
Detailed Explanation:
* podman build creates the container image.
* loginctl enable-linger alex allows user services to keep running without an active login session.
* podman generate systemd creates a systemd unit file for the container.
* systemctl --user manages the unit in the user session scope.
* On newer Podman releases, behavior and defaults have changed in RHEL 10, but the lab's workflow is
still conceptually valid.
NEW QUESTION # 43
Configure a task: plan to run echo "file" command at 14:23 every day.
Answer:
Explanation:
(a) Created as administrator
# crontab -u natasha -e
23 14 * * * /bin/echo "file"
(b)Created as natasha
# su - natasha
$ crontab -e
23 14 * * * /bin/echo "file"
NEW QUESTION # 44
......
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