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| Section | Objectives |
|---|---|
| Create and configure file systems | - Diagnose and correct file permission problems - Extend existing logical volumes - Create, mount, unmount, and use VFAT, ext4, and XFS file systems - Configure autofs - Mount and unmount network file systems using NFS |
| Manage basic networking | - Configure IPv4 and IPv6 addresses - Configure hostname resolution - Restrict network access using firewalld and firewall-cmd - Configure network services to start automatically at boot |
| Manage software | - Configure access to RPM repositories - Configure access to Flatpak repositories - Install and remove Flatpak software packages - Install and remove RPM software packages |
| Manage security | - Manage default file permissions - Restore default file contexts - Use Boolean settings to modify SELinux settings - Configure firewall settings using firewall-cmd and firewalld - Manage SELinux port labels - List and identify SELinux file and process contexts - Set enforcing and permissive modes for SELinux - Configure key-based authentication for SSH |
| Create simple shell scripts | - Process output of shell commands within a script - Use looping constructs to process files and command-line input - Process script inputs - Conditionally execute code |
| Operate running systems | - Preserve system journals - Boot, reboot, and shut down a system normally - Start, stop, and check the status of network services - Identify CPU and memory intensive processes and kill processes - Adjust process scheduling - Interrupt the boot process to gain access to a system - Boot systems into different targets manually - Securely transfer files between systems - Manage tuning profiles - Locate and interpret system log files and journals |
| Understand and use essential tools | - Archive, compress, unpack, and uncompress files using tar, gzip, and bzip2 - List, set, and change standard ugo/rwx permissions - Access a shell prompt and issue commands with correct syntax - Use input-output redirection - Create, delete, copy, and move files and directories - Locate, read, and use system documentation - Log in and switch users in multi-user targets - Create and edit text files - Access remote systems using SSH - Create hard and soft links - Use grep and regular expressions to analyze text |
| Configure local storage | - Add new partitions, logical volumes, and swap non-destructively - Configure systems to mount file systems at boot by UUID or label - Create and delete logical volumes - Assign physical volumes to volume groups - Create and remove physical volumes - List, create, and delete partitions on GPT disks |
| Manage users and groups | - Create, delete, and modify local groups and group memberships - Configure privileged access - Change passwords and adjust password aging for local users - Create, delete, and modify local user accounts |
| Deploy, configure, and maintain systems | - Configure time service clients - Schedule tasks using at, cron, and systemd timer units - Modify the system bootloader - 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 |
>> Valid EX200 Test Objectives <<
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NEW QUESTION # 60
There is a server having 172.24.254.254 and 172.25.254.254. Your System lies on 172.24.0.0/16. Make successfully ping to 172.25.254.254 by Assigning following IP: 172.24.0.x where x is your station number.
Answer:
Explanation:
see explanation below.
Explanation
* Use netconfig command
* Enter the IP Address as given station number by your examiner: example: 172.24.0.1
* Enter Subnet Mask
* Enter Default Gateway and primary name server
* press on ok
* ifdown eth0
* ifup eth0
* verify using ifconfig
In the lab server is playing the role of router, IP forwarding is enabled. Just set the Correct IP and gateway, you can ping to 172.25.254.254.
NEW QUESTION # 61
SIMULATION
Notes:
NFS： NFS instructor.example.com:/var/ftp/pub/rhel6/dvd
YUM： http://instructor.example.com/pub/rhel6/dvd
ldap： http：//instructor.example.com/pub/EXAMPLE-CA-CERT
Install dialog package.
Answer:
Explanation:
yum install dialog
NEW QUESTION # 62
Copy /etc/fstab document to /var/TMP directory. According the following requirements to configure the permission of this document.
The owner of this document must be root.
This document belongs to root group.
User mary have read and write permissions for this document.
User alice have read and execute permissions for this document.
Create user named bob, set uid is 1000. Bob have read and write permissions for this document.
All users has read permission for this document in the system.
Answer:
Explanation:
cp /etc/fstab /var/tmp
chown root:root /var/tmp/fstab
chmod a-x /var/tmp/fstab
setfacl -m u:mary:rw /var/tmp/fstab
setfacl -m u:alice:rx /var/tmp/fstab
useradd -u 1000 bob
NEW QUESTION # 63
Part 2 (on Node2 Server)
Task 4 [Managing Logical Volumes]
Resize the logical volume, lvrz and reduce filesystem to 4600 MiB. Make sure the the filesystem contents remain intact with mount point /datarz (Note: partitions are seldom exactly the size requested, so anything within the range of 4200MiB to 4900MiB is acceptable)
Answer:
Explanation:
* [root@node2 ~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
vdb 252:16 0 5G 0 disk
└─vdb1 252:17 0 4.2G 0 part
└─vgrz-lvrz 253:2 0 4.1G 0 lvm /datarz
vdc 252:32 0 5G 0 disk
└─vdc1 252:33 0 4.4G 0 part
└─datavg-datalv 253:3 0 3.9G 0 lvm /data
vdd 252:48 0 5G 0 disk
vde 252:64 0 10G 0 disk
[root@node2 ~]# lvs
LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert
lvrz vgrz -wi-ao---- 4.10g
[root@node2 ~]# vgs
VG #PV #LV #SN Attr VSize VFree
vgrz 1 1 0 wz--n- <4.15g 48.00m
[root@node2 ~]# parted /dev/vdb print
Number Start End Size Type File system Flags
1 1049kB 4456MB 4455MB primary lvm
* [root@node2 ~]# df -hT
Filesystem Type Size Used Avail Use% Mounted on
/dev/mapper/vgrz-lvrz ext4 4.0G 17M 3.8G 1% /datarz
[root@node2 ~]# parted /dev/vdb mkpart primary 4456MiB 5100MiB
[root@node2 ~]# parted /dev/vdb set 2 lvm on
[root@node2 ~]# udevadm settle
[root@node2 ~]# pvcreate /dev/vdb2
Physical volume "/dev/vdb2" successfully created.
* [root@node2 ~]# vgextend vgrz /dev/vdb2
Volume group "vgrz" successfully extended
[root@node2 ~]# lvextend -r -L 4600M /dev/vgrz/lvrz
Size of logical volume vgrz/lvrz changed from 4.10 GiB (1050 extents) to 4.49 GiB (1150 extents).
Logical volume vgrz/lvrz successfully resized.
[root@node2 ~]# resize2fs /dev/vgrz/lvrz
[root@node2 ~]# df -hT
Filesystem Type Size Used Avail Use% Mounted on
/dev/mapper/vgrz-lvrz ext4 4.4G 17M 4.2G 1% /datarz
NEW QUESTION # 64
SIMULATION
Configure a user account.
Create a user iar，uid is 3400. Password is redhat
Answer:
Explanation:
See explanation below.
Explanation/Reference:
Explanation: useradd -u 3400 iar
passwd iar
NEW QUESTION # 65
......
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