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| Section | Objectives |
|---|---|
| Topic 1: Operate running systems | - Manage tuning profiles - Identify CPU and memory intensive processes and kill processes - Preserve system journals - Interrupt the boot process to gain access to a system - Start, stop, and check the status of network services - Adjust process scheduling - Boot systems into different targets manually - Locate and interpret system log files and journals - Securely transfer files between systems - Boot, reboot, and shut down a system normally |
| Topic 2: Manage users and groups | - Change passwords and adjust password aging for local users - Create, delete, and modify local user accounts - Configure privileged access - Create, delete, and modify local groups and group memberships |
| Topic 3: Configure local storage | - Create and delete logical volumes - Add new partitions, logical volumes, and swap non-destructively - List, create, and delete partitions on GPT disks - Assign physical volumes to volume groups - Create and remove physical volumes - Configure systems to mount file systems at boot by UUID or label |
| Topic 4: Create and configure file systems | - Diagnose and correct file permission problems - Mount and unmount network file systems using NFS - Extend existing logical volumes - Create, mount, unmount, and use VFAT, ext4, and XFS file systems - Configure autofs |
| Topic 5: Deploy, configure, and maintain systems | - Modify the system bootloader - Configure systems to boot into a specific target automatically - Configure time service clients - Start and stop services and configure services to start automatically at boot - Schedule tasks using at, cron, and systemd timer units - Install and update software packages |
| Topic 6: Manage security | - Restore default file contexts - Set enforcing and permissive modes for SELinux - List and identify SELinux file and process contexts - Configure key-based authentication for SSH - Manage SELinux port labels - Configure firewall settings using firewall-cmd and firewalld - Use Boolean settings to modify SELinux settings - Manage default file permissions |
| Topic 7: Manage software | - Install and remove Flatpak software packages - Install and remove RPM software packages - Configure access to Flatpak repositories - Configure access to RPM repositories |
| Topic 8: Understand and use essential tools | - Use grep and regular expressions to analyze text - Access remote systems using SSH - List, set, and change standard ugo/rwx permissions - Create and edit text files - Create hard and soft links - Archive, compress, unpack, and uncompress files using tar, gzip, and bzip2 - Create, delete, copy, and move files and directories - Locate, read, and use system documentation - Use input-output redirection - Access a shell prompt and issue commands with correct syntax - Log in and switch users in multi-user targets |
| Topic 9: Create simple shell scripts | - Process output of shell commands within a script - Conditionally execute code - Process script inputs - Use looping constructs to process files and command-line input |
| Topic 10: Manage basic networking | - Configure network services to start automatically at boot - Configure hostname resolution - Restrict network access using firewalld and firewall-cmd - Configure IPv4 and IPv6 addresses |
>> EX200 Reliable Test Topics <<
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NEW QUESTION # 45
Create a logical volume
Create a new logical volume as required:
Name the logical volume as database, belongs to datastore of the volume group, size is 50 PE.
Expansion size of each volume in volume group datastore is 16MB.
Use ext3 to format this new logical volume, this logical volume should automatically mount to /mnt/database
Answer:
Explanation:
see explanation below.
Explanation
fdisk -cu /dev/vda// Create a 1G partition, modified when needed
partx -a /dev/vda
pvcreate /dev/vdax
vgcreate datastore /dev/vdax -s 16M
lvcreate- l 50 -n database datastore
mkfs.ext3 /dev/datastore/database
mkdir /mnt/database
mount /dev/datastore/database /mnt/database/ df -Th
vi /etc/fstab
/dev/datastore /database /mnt/database/ ext3 defaults 0 0 mount -a
Restart and check all the questions requirements.
NEW QUESTION # 46
15. Add sudo Permission Configuration
Allow members of the sysmgrs group to use sudo without entering a password.
Answer:
Explanation:
Solution:
[root@node1 ~]# visudo
...
%wheel ALL=(ALL) NOPASSWD: ALL
%sysmgrs ALL=(ALL) NOPASSWD: ALL
# Verification (mandatory operation)
[root@node1 ~]# su - natasha
[natasha@node1 ~]# sudo cat /etc/shadow
NEW QUESTION # 47
Some users home directory is shared from your system. Using showmount -e localhost command, the shared directory is not shown. Make access the shared users home directory.
Answer:
Explanation:
see explanation below.
Explanation
* Verify the File whether Shared or not ? : cat /etc/exports
* Start the nfs service: service nfs start
* Start the portmap service: service portmap start
* Make automatically start the nfs service on next reboot: chkconfig nfs on
* Make automatically start the portmap service on next reboot: chkconfig portmap on
* Verify either sharing or not: showmount -e localhost
* Check that default firewall is running on system?
If running flush the iptables using iptables -F and stop the iptables service.
NEW QUESTION # 48
Part 1 (on Node1 Server)
Task 6 [Accessing Linux File Systems]
Find all lines in the file /usr/share/mime/packages/freedesktop.org.xml that contain the string ich.
Put a copy of these lines in the original order in the file /root/lines.
/root/lines should contain no empty lines and all lines must be exact copies of the original lines in
/usr/share/mime/packages/freedesktop.org.xml
Answer:
Explanation:
* [root@node1 ~]# cat /usr/share/mime/packages/freedesktop.org.xml | grep ich > /root/lines
[root@node1 ~]# cat /root/lines
<comment xml:lang="ast">Ficheru codificau en BinHex de Machintosh</comment>
<comment xml:lang="fr">fichier code Macintosh BinHex</comment>
<comment xml:lang="gl">ficheiro de Macintosh codificado con BinHex</comment>
<comment xml:lang="oc">fichier encodat Macintosh BinHex</comment>
<comment xml:lang="pt">ficheiro codificado em BinHex de Macintosh</comment>
<comment xml:lang="fr">fichier boite aux lettres</comment>
NEW QUESTION # 49
A YUM source has been provided in the
http://instructor.example.com/pub/rhel6/dvd
Configure your system and can be used normally.
Answer:
Explanation:
/etc/yum.repos.d/base.repo
[base]
name=base
baseurl=http://instructor.example.com/pub/rhel6/dvd
gpgcheck=0
yum list
NEW QUESTION # 50
......
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