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| Section | Weight | Objectives |
|---|---|---|
| Operate running systems | 20% | - Manage logging and journaling - Schedule tasks using cron and at - Manage networking and network services - Maintain accurate system time with chrony - Boot systems into different targets; manage systemd units |
| Configure local storage | 15% | - List, create, delete partitions and GPT/MBR layouts - Configure swap space - Create and manage LVM physical volumes, volume groups, logical volumes |
| Create and configure file systems | 15% | - Mount and manage network file systems (NFS, autofs) - Manage access control lists (ACLs) - Create and mount XFS, ext4, VFAT file systems - Maintain entries in /etc/fstab using UUID or labels |
| Manage security | 10% | - Enforce SELinux modes, contexts, booleans, and port labeling - Restore file contexts and troubleshoot SELinux issues |
| Manage users and groups | 10% | - Manage password policies and sudo access - Create, delete, modify users and groups - Configure SSH key-based authentication |
| Deploy, configure, and maintain systems | 15% | - Manage software packages with DNF/YUM - Manage network interfaces and settings with NetworkManager/nmcli - Configure firewalld firewall rules |
| Perform basic shell scripting | - Use conditional statements, loops, and script inputs | |
| Understand and use essential tools | 25% | - Access shell prompt and issue commands with correct syntax - Use grep and regular expressions - Archive, compress, unpack files using tar, gzip, bzip2 - Use input-output redirection - Access remote systems via SSH - Create/edit text files; manage files, directories, links, permissions |
>> RedHat EX200 Examcollection Questions Answers <<
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NEW QUESTION # 22
Create a swap space, set the size is 600 MB, and make it be mounted automatically after rebooting the system (permanent mount).
Answer:
Explanation:
see explanation below.
Explanation
* if=/dev/zero of=/swapfile bs=1M count=600 mkswap /swapfile
/etc/fstab:
/swapfile swap swap defaults 0 0 mount -a
NEW QUESTION # 23
SIMULATION
Binding to an external validation server.
System server.domain11.example.com provides a LDAP validation service, your system should bind to this service as required:
Base DN of validation service is dc=example,dc=com
LDAP is used for providing account information and validation information Connecting and using the certification of http://server.domain11.example.com/pub/EXAMPLE-CA-CERT to encrypt After the correct configuration, ldapuser1 can log into your system, it does not have HOME directory until you finish autofs questions, ldapuser1 password is password.
Answer:
Explanation:
See explanation below.
Explanation/Reference:
Explanation: yum -y install sssd authconfig-gtk krb5-workstation authconfig-gtk // open the graphical interface Modify user account database to ldap, fill up DN and LDAP SERVER as questions required, use TLS to encrypt connections making tick, write http://server.domain11.example.com/pub/EXAMPLE-CA-CERT to download ca, authentication method choose ldap password.
You can test if the ldapuser is added by the following command:
Id ldapuser1
Note: user password doesn't not need to set
NEW QUESTION # 24
Find all files owned by user tom and copy them into /root/tomfiles.
Answer:
Explanation:
See the solution below in Explanation.
Explanation:
Solution:
* Create the destination directory if needed:
mkdir -p /root/tomfiles
* Find and copy:
find / -type f -user tom -exec cp -pvf {} /root/tomfiles/ \;
Detailed Explanation:
* find / searches the whole filesystem.
* -type f restricts results to files.
* -user tom matches owner tom.
* -exec cp -pvf copies each file with verbose and force options.
* mkdir -p is added as a safe preparation step.
NEW QUESTION # 25
Set cronjob for user natasha to do /bin/echo hiya at 14:23.
Answer:
Explanation:
# crontab -e -u natasha
23 14 * * * /bin/echo hiya
wq!
NEW QUESTION # 26
SIMULATION
Install the Kernel Upgrade.
Install suitable kernel update from:
http://server.domain11.example.com/pub/updates.
Following requirements must be met:
Updated kernel used as the default kernel of system start-up.
The original kernel is still valid and can be guided when system starts up.
Answer:
Explanation:
See explanation below.
Explanation/Reference:
Explanation: Using the browser open the URL in the question, download kernel file to root or home directory.
uname -r// check the current kernel version
rpm -ivh kernel-*.rpm
vi /boot/grub.conf// check
Some questions are: Install and upgrade the kernel as required. To ensure that grub2 is the default item for startup.
Yum repo : http://content.example.com/rhel7.0/x86-64/errata
OR
uname -r // check kernel
Yum-config-manager --add-repo="http://content.example.com/rhel7.0/x86-64/ errata" Yum clean all Yum list kernel// install directly Yum -y install kernel// stuck with it, do not pipe! Please do not pipe!
Default enable new kernel grub2-editenv list// check
Modify grub2-set-default "kernel full name"
Grub2-mkconfig -o/boot/grub2/grub.cfg// Refresh
NEW QUESTION # 27
......
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