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| Section | Objectives |
|---|---|
| Manage basic networking | - Configure hostname resolution - Restrict network access using firewalld and firewall-cmd - Configure network services to start automatically at boot - Configure IPv4 and IPv6 addresses |
| Manage security | - Manage SELinux port labels - Manage default file permissions - Restore default file contexts - Use Boolean settings to modify SELinux settings - Set enforcing and permissive modes for SELinux - List and identify SELinux file and process contexts - Configure firewall settings using firewall-cmd and firewalld - Configure key-based authentication for SSH |
| Configure local storage | - Create and delete logical volumes - Create and remove physical volumes - Add new partitions, logical volumes, and swap non-destructively - Assign physical volumes to volume groups - List, create, and delete partitions on GPT disks - Configure systems to mount file systems at boot by UUID or label |
| Manage software | - Install and remove RPM software packages - Install and remove Flatpak software packages - Configure access to Flatpak repositories - Configure access to RPM repositories |
| Understand and use essential tools | - Create and edit text files - Use grep and regular expressions to analyze text - Create hard and soft links - Use input-output redirection - List, set, and change standard ugo/rwx permissions - Access a shell prompt and issue commands with correct syntax - Access remote systems using SSH - Create, delete, copy, and move files and directories - Log in and switch users in multi-user targets - Archive, compress, unpack, and uncompress files using tar, gzip, and bzip2 - Locate, read, and use system documentation |
| Create and configure file systems | - Configure autofs - Mount and unmount network file systems using NFS - Extend existing logical volumes - Create, mount, unmount, and use VFAT, ext4, and XFS file systems - Diagnose and correct file permission problems |
| Operate running systems | - Boot systems into different targets manually - Manage tuning profiles - Interrupt the boot process to gain access to a system - Identify CPU and memory intensive processes and kill processes - Start, stop, and check the status of network services - Adjust process scheduling - Boot, reboot, and shut down a system normally - Securely transfer files between systems - Preserve system journals - Locate and interpret system log files and journals |
| Deploy, configure, and maintain systems | - Configure systems to boot into a specific target automatically - Install and update software packages - Start and stop services and configure services to start automatically at boot - Modify the system bootloader - Schedule tasks using at, cron, and systemd timer units - Configure time service clients |
| Create simple shell scripts | - Use looping constructs to process files and command-line input - Conditionally execute code - Process output of shell commands within a script - Process script inputs |
| Manage users and groups | - Change passwords and adjust password aging for local users - Configure privileged access - Create, delete, and modify local groups and group memberships - Create, delete, and modify local user accounts |
>> Valid RedHat EX200 Exam Topics <<
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NEW QUESTION # 40
SIMULATION
Create a backup
Create a backup file named /root/backup.tar.bz2, contains the content of /usr/local, tar must use bzip2 to compress.
Answer:
Explanation:
See explanation below.
Explanation/Reference:
Explanation:
cd /usr/local
tar -jcvf /root/backup.tar.bz2
mkdir /test
tar -jxvf /root/backup.tar.bz2 -C /test// Decompression to check the content is the same as the /usr/loca after If the questions require to use gzip to compress. change -j to -z.
NEW QUESTION # 41
Which section of the Prometheus configuration defines which nodes are monitored?
Answer: D
Explanation:
Explanation/Reference: https://prometheus.io/docs/prometheus/latest/getting_star
NEW QUESTION # 42
Your System is configured in 192.168.0.0/24 Network and your nameserver is 192.168.0.254. Make successfully resolve to server1.example.com.
Answer:
Explanation:
nameserver is specified in question,
1. Vi /etc/resolv.conf
nameserver 192.168.0.254
2. host server1.example.com
NEW QUESTION # 43
Configure your system to use the default repositories.
YUM repositories are available from http://content/rhel9.0/x86_64/dvd/BaseOS and http://content/rhel9.0/x86_64/dvd/AppStream. Configure your system to use these locations as default repositories.
Answer:
Explanation:
[root@node1 ~]# vim /etc/yum.repos.d/rhcsa.repo
[Base]
name=Base
baseurl=http://content/rhel9.0/x86_64/dvd/BaseOS
enabled=1
gpgcheck=no
[App]
name=App
baseurl=http://content/rhel9.0/x86_64/dvd/AppStream
enabled=1
gpgcheck=no
# Verification
[root@node1 ~]# yum repoinfo
[root@node1 ~]# yum -y install vsftpd
NEW QUESTION # 44
Find the rows that contain abcde from file /etc/testfile, and write it to the file/tmp/testfile, and the sequence is requested as the same as /etc/testfile.
Answer:
Explanation:
see explanation below.
Explanation
# cat /etc/testfile | while read line;
do
echo $line | grep abcde | tee -a /tmp/testfile
done
OR
grep `abcde' /etc/testfile > /tmp/testfile
NEW QUESTION # 45
......
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