One Logical Volume named lv1 is created under vg0. The Initial Size of that Logical Volume is 100MB. Now you required the size 500MB. Make successfully the size of that Logical Volume 500M without losing any data. As well as size should be increased online.
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The LVM system organizes hard disks into Logical Volume (LV) groups. Essentially, physical hard disk partitions (or possibly RAID arrays) are set up in a bunch of equal sized chunks known as Physical Extents (PE). As there are several other concepts associated with the LVM system, let's start with some basic definitions:
Physical Volume (PV) is the standard partition that you add to the LVM mix. Normally, a physical volume is a standard primary or logical partition. It can also be a RAID array.
Physical Extent (PE) is a chunk of disk space. Every PV is divided into a number of equal sized PEs. Every PE in a LV group is the same size. Different LV groups can have different sized PEs.
Logical Extent (LE) is also a chunk of disk space. Every LE is mapped to a specific PE.
Logical Volume (LV) is composed of a group of LEs. You can mount a file system such as /home and /var on an LV.
Volume Group (VG) is composed of a group of LVs. It is the organizational group for LVM. Most of the commands that you'll use apply to a specific VG. Verify the size of Logical Volume: lvdisplay /dev/vg0/lv1
Verify the Size on mounted directory: df -h or df -h mounted directory name Use: lvextend -L+400M /dev/vg0/lv1 ext2online -d /dev/vg0/lv1 to bring extended size online. Again Verify using lvdisplay and df -h command.
Question 2
SIMULATION
According the following requirements to create user, user group and the group members:
- A group named admin.
- A user named mary, and belong to admin as the secondary group.
- A user named alice, and belong to admin as the secondary group.
- A user named bobby, bobby’s login shell should be non-interactive. Bobby not belong to admin as the secondary group.Mary, Alice, bobby users must be set "password" as the user's password.
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groupadd admin useradd -G admin mary useradd -G admin alice useradd -s /sbin/nologin bobby echo "password" | passwd --stdin mary echo "password" | passwd --stdin alice echo "password" | passwd --stdin bobby
Question 3
SIMULATION
Configure a HTTP server, which can be accessed through http://station.domain40.example.com. Please download the released page from http://ip/dir/example.html.
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# yum install -y httpd
# chkconfig httpd on
# cd /var/www/html
# wget http://ip/dir/example.html
# cp example.com index.html
# vim /etc/httpd/conf/httpd.conf
NameVirtualHost 192.168.0.254:80
DocumentRoot /var/www/html/
ServerName station.domain40.example.com
Question 4
SIMULATION
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.
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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.
Question 5
SIMULATION
Configure the FTP service in your system, allow remote access to anonymous login and download the program by this service. Service is still running after system rebooting.
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yum install vsftpd
/etc/init.d/vsftpd start chkconfig vsftpd on
Question 6
SIMULATION
Search files.
Find out files owned by jack, and copy them to directory /root/findresults
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mkdir/root/findfiles
find / -user jack -exec cp -a {} /root/findfiles/ \; ls /root/findresults
Question 7
SIMULATION
Create a Shared Directory.
Create a shared directory /home/admins, make it has the following characteristics:
/home/admins belongs to group adminuser
This directory can be read and written by members of group adminuser Any files created in /home/ admin, group automatically set as adminuser.
Change the logical volume capacity named vo from 190M to 300M. and the size of the floating range should set between 280 and 320. (This logical volume has been mounted in advance.)
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# vgdisplay
(Check the capacity of vg, if the capacity is not enough, need to create pv , vgextend , lvextend)
Who ever creates the files/directories on a data group owner should automatically be in the same group owner as data.
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1. chmod g+s /data
2. Verify using: ls -ld /data
Permission should be like this: drwxrws--- 2 root sysadmin 4096 Mar 16 18:08 /data
If SGID bit is set on directory then who every users creates the files on directory group owner automatically the owner of parent directory. To set the SGID bit: chmod g+s directory To Remove the SGID bit: chmod g-s directory
Question 10
SIMULATION
Download the document from ftp://instructor.example.com/pub/testfile, find all lines containing [abcde] and redirect to /MNT/answer document, then rearrange the order according the original content.
Answer is in the explanation below.
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Download the file to /tmp first grep [abcde] /tmp/testfile > /mnt/answer
About the EX200 Free Practice Test
Prepare for the Red Hat Certified System Administrator - RHCSA (8.2) (EX200) exam with this free practice test from Study4Pass, built around the real RedHat syllabus. The 10 questions are a free sample of the full Study4Pass practice set of 111 questions, so you can check your level before you commit to the real exam. The free sample is made up of 10 hands-on lab questions, each with a full explanation. Questions are spread across the areas that matter most on the real exam: System Architecture, Installation and Configuration, Network Configuration and Authentication and Command Line Management. RedHat EX200 is the Red Hat Certified System Administrator (RHCSA) Exam.
The target audience of the RedHat EX200 exam is IT professionals and system administrators who are interested in gaining the skills and knowledge necessary to install, configure, and manage Red… The Prerequisite for the RedHat EX200 Exam is the RedHat EX200: Red Hat Certified System Administrator (RHCSA) certification.
Certification: Red Hat Certified System Administrator - RHCSA (8.2) (EX200)
Vendor: RedHat
Free on this page: 10 practice questions with answers and explanations
Full practice set: 111 questions
Treat this sample as a diagnostic. Answer honestly, check the explanation after every question, and note which topics feel shaky. A short, focused review of those topics is worth more than re-reading everything — and the full set lets you drill them topic by topic.
A good way to use this page: take the whole sample in one sitting, then go back over every explanation with fresh eyes. Mark the topics that felt uncertain, not just the ones you got wrong — uncertain answers are unmarked risk on the real exam. One or two focused passes like this usually move a score more than days of passive reading.
Inside the full EX200 practice set:
All 111 questions with answers and explanations
Timed Exam Simulation that mirrors the real exam pressure
Topic Training to drill one domain at a time
Ask AI for More Explanation on every question
Flag questions and review them before you finish
How to use this EX200 free practice test
Answer a question, then check the result to see the correct answer and the explanation behind it. Work at your own pace — there is no timer and no signup. Stuck on a concept? This is an AI-Enabled practice test: use Ask AI on any question and get the underlying concept explained in plain words, so you learn the reasoning instead of memorizing answers. When the free sample feels comfortable, the full set of 111 questions adds timed Exam Simulation, topic-by-topic training, and flagged-question review — the closest thing to exam day you can get before the real thing.
What to study for each EX200 domain
System Architecture — This section covers topics related to system architecture, including system components, system boot, system initialization, and system management.
Installation and Configuration — This section covers topics related to installation and configuration of Red Hat Enterprise Linux, including installation options, partitioning, package management, and system services.
Network Configuration and Authentication — This section covers topics related to network configuration and authentication, including network configuration, authentication, and authentication services.
Command Line Management — This section covers topics related to command line management, including user management, file permissions, and file system navigation.
System Maintenance — This section covers topics related to system maintenance, including log files, system backups, system recovery, and system troubleshooting.
Security — This section covers topics related to security, including access control, firewalls, and SELinux.
EX200 practice test — quick questions
Is this EX200 practice test free?
Yes. Every question on this page — all 10 of them — is free to use, and you never need to create an account to try them.
How many questions are in the full EX200 set?
The full Study4Pass set for EX200 has 111 practice questions. This page gives you 10 of them free so you can judge the quality and difficulty first.
Does the free test show the answers?
Yes. Check any question to reveal the correct answer and its explanation, and use Ask AI whenever you want the underlying concept explained step by step.
Is this the real EX200 exam?
No — these are practice questions built to match the EX200 domains and difficulty level, so you can prepare for the real exam with confidence.