Linux Technical Interview QA with Practical Sessions

Learn Interview tips from IT professionals with live Environment Sessions.

4.50 (122 reviews)
Udemy
platform
English
language
Operating Systems
category
630
students
5.5 hours
content
Sep 2018
last update
$49.99
regular price

What you will learn

LINUX Technical Interview QA’s with Practical way of explanation

Interview Questions on topic User Administration in Linux

Interview Questions on topic Permissions Administration in Linux

Interview Questions on topic LVM Administration in Linux

Interview Questions on topic Booting process in Linux

Interview Questions on topic SSH in Linux

Interview Questions on topic Basic System Recovery in Linux

Familiar with Advance LVM

QA on Process Management

Different Process Stats

Description

                            LINUX Basic Course Outline

Here are topic wise Linux System Administrator Interview Questions …

Interview Questions on topic User Administration in Linux

  • What the fields of /etc/passwd file?
  • How to create a user with specifying a primary/Secondary grp?
  • How can you create a user without useradd command?
  • What is the default permission on user's home directory?
  • What is the difference between .bash_profile and .bashrc?
  • What is the command to create a user with a pre defined uid, shell and home directory?
  • How to change primary group for any user?
  • If I delete a user, does it's home directory gets deleted? If not then what is the command to delete the home directory of user along with the user
  • Name any 3 files which are automatically created inside any user's home directory when a user is added.
  • What is the command to view all the currently logged in users?
  • What is the command to change and view the expiry date for any user?
  • What are the details you get with finger command?
  • How can you give a normal user all the root level privileges?
  • Name any 3 groups of which root is a member by default
  • How can you give sudo access to any user without asking him to provide passord every time he runs a command?
  • Why should I use visudo command instead of directly editing the file with vi or any other editor?
  • Default permission of file and Directory ?
  • How to view the User's login and logout details ?
  • How to check Primary and Secondary Group of One User ?
  • How to lock & unlock the User Account ?

Interview Questions on topic permissions in Linux

  • What is the difference between SUID and SGID?
  • What is Sticky Bit permission?
  • What is umask?
  • What is the default umask value for useradd command and where is it defined?
  • Will you be able to cd into a directory with only read permission?
  • What is -R argument used for along with chmod command?
  • How can you restrict a normal as well as root user from making any changes as well as deleting any file?
  • What is the difference between small t and capital T when applying sticky bit permission?
  • List out few of the differences between Softlink and Hardlink?
  • What is the difference between umask and ulimit ?

Interview Questions on topic LVM in LINUX

  • How many volume groups can be created in Linux ?
  • Is it possible to increase the logical volume on fly ?
  • How to reduce the logical volume ? is it possible to reduce on fly ?
  • How to increase the logical volume?
  • How to do you scan the new LUN or disk for LVM  physical volume ?
  • How to scan disks for existing volume group ?
  • How to scan a logical volume from existing volume group?
  • How to stop the logical volume ? or deactivate the logical volume ?
  • How to activated the logical volume which in deactivated state ?
  • How to disable the volume group ? or Deactivate the volume group ?
  • How to enable the volume group ? or Activate the volume group ?
  • How do you find that what are the disks are used for  logical volume mirroring ?
  • How to list the imported volume groups ?
  • How to list the available logical volumes on the system?
  • How to list the available physical volumes in LVM?
  • How to see the detailed volume group information ?

Interview Questions on topic Linux Boot Process

  • Explain booting process ?
  • Define BIOS, MBR?
  • Explain GRUB and how it differs from latest GRUB2?
  • How would you define initramfs and what is its function in the Linux booting process?
  • What is the one new feature of RHEL 7?
  • What is systemd? And tell few features of systemd which makes it differs from other OS.
  • Overview of Systemd in RHEL 7?
  • List few features of Systemd? And tell few features of systemd which makes it differs from other OS.
  • Booting process of RHEL 7?
  • When it is required to boot the Linux box in to rescue mode and how we can boot it on rescue mode?
  • What is the command to change the runlevel in RHEL 7? and also to view what targets are available you can issue the list-units option with the type target?
  • Rescue mode in RHEL7 & how can we boot into Rescue mode?
  • What is basic difference between Rescue & Emergency Mode?
  • How can we recover MBR if it gets corrupted?
  • Suppose someone accidently deleted the mount binary i.e. (/bin/mount) and rebooted the Linux Box, then how would recover your box from this situation?

Interview Questions on topic SSH in LINUX

  • What is the default port & configuration file of SSH Server ?
  • How to change the default ssh port in linux ?
  • What is the configuration file of ssh client ?
  • How to disable the root login in linux server ?
  • How to allow only specific users to ssh your linux server ?
  • How to enable debugging in ssh command ?
  • What is the difference between ssh & Telnet ?
  • What is use of sshpass command in linux ?
  • What is the use of scp command ?
  • What is the use of blowfish options in scp command ?
  • How to limit the bandwidth used by scp command ?
  • How to enable passwordless ssh authentication in Linux ?
  • How to check SSH server’s Version ?
  • How to Copy the file “server.txt” from the local machine to a remote host using port 2751 in /opt folder.

Technical Interview QA on Process Management

  • What is a prcoess and whats the command to list all the process?
  • How to use custom properties while running a ps command?
  • What is PID & PPID ? Example with an example?
  • What is a nice value & how can we set it for a process?
  • What is 'D Uninterruptible sleep mode?
  • What is Z and paging Stat process stats?



Content

Introduction

Introduction

QA - User administration in Linux

Interview QA on topic User Admin
Lec1
Lec 2
Lec 3
Lec 4

QA - Permissions in Linux

Lec 1
Lec 2
Lec 3
Lec 4
Lec 5
Lec 6

QA - LVM in Linux

Lec 1
Lec 2
Lec 3
Lec 4
Lec 5
Lec 6
Lec 7

QA - Linux Booting Process

QA - Booting Process of Linux - 1
QA - Booting Process of Linux - 2
QA on RHEL 7
Overview of Systemd
Features of Systemd
Booting processes of RHEL 7
BIOS, MBR in Linux
Initramfs
Lab Session: Rescue Mode in RHEL 6
Lab Session: Rescue Mode in RHEL 7
Lab Session: Emergency Mode in RHEL 7

QA on SSH in LINUX

Lec 1
Lec 2
Lec 3

Technical QA on Process Management

QA - Lec1
QA - Lec2
QA - Lec3
QA - Lec4

RHEL7 vs RHEL6

Features & Comparison - 1
Features & Comparison -2
Features & Comparison - 3

Advance LVM Administration

Advance lvm lec1
Advance lvm lec 2
Advance lec 3
Advance lec 4

Technical QA on Grub2

QA - Lecture 1
QA - Lecture 2
Lab Session on QA Lecture -2
QA - Lecture 3
Lab Session on QA Lecture - 3
QA - Lec 4 (How to supply password at grub?

Screenshots

Linux Technical Interview QA with Practical Sessions - Screenshot_01Linux Technical Interview QA with Practical Sessions - Screenshot_02Linux Technical Interview QA with Practical Sessions - Screenshot_03Linux Technical Interview QA with Practical Sessions - Screenshot_04

Reviews

Harish
June 15, 2023
It's an awesome video. But if you think that you can clear interview with this. Your wrong. Whatever he has cleared is good. But still, he needs to add lots of questions and answers.
Terry
September 9, 2019
The questions_lists.txt that comes as a resource is very nice, but not complete. That was disappointing. Overall, the course is good.
Syed
October 19, 2018
This course teaches some highly-relevant and employable skills all while outputting a useful product in its conclusion. It's rare to find Linux courses that focus on technoloy in this manner. excellent explanation simple and clear!! His explanations followed by hands-on examples make this a course applicable to Linux administration. I recommend this course for anyone wanting to be an administrator.Very experienced instructor clearly knows Linux very well..
Kumar
October 2, 2018
I am very glad to buy this extremely useful training videos to prepare for Linux interview and I will refer this to my other friends. I like the way Shikhar explains everything in simple manner.
Subir
September 25, 2018
The creator of the course has not put the effort to create a real time scenario questions. Purchasing the course is a waste of money, most of the Linux tutorial videos in youtube are much better than this course. What a waste of money!
Anoop
September 12, 2018
Shadow file contents overview could have shown while explain the password file. Ulimit could have explained with an example. Lvm concept explain with a diagram make it easy to understand. RAID,YUM,Package management topics are totally skipped Lvm restore,recovery session is advanced ,remaining everything is very basic level.
Saurav
August 28, 2018
One word for the QA course Excellent and crisp explanation. Very informative and Instructor have great knowledge
Surbhit
June 27, 2018
Level of questions are very low..please try to add more administrative level questions. Like what an admin face in his day to day activity.
Priyanka
April 22, 2018
Hello, Really i have to appreciate your efforts for providing real time example with your clear explanation. I must say this module is a good collections of interview ques and ans. Thanks again !!
Shuhbra
March 17, 2018
Very good course module and one can beat Linux L1/L2 interview. Please launch a course for L3 as well
Ashish
February 24, 2018
So far i liked it and explanation way is wonderful and expecting more lectures to be added into this QA course and cover more topics.
Yadunandan
February 24, 2018
I think Questions cannot go beyond the number of the scenarios explained in this tutorial. Was going through some reviews below which states YouTube as more productive compared to this one. I am sure people must be considering this course as the only helping hand for preparing for the interviews, which ideally should not be the case. Only practice can make somebody encounters multiple issues and derive their resolutions too. Shikhar sir is very responsive on the portal and available for every doubts whatever exists. Gained amazing knowledge always from every tutorial. BIG THANKS..!!
Akansha
February 23, 2018
Best lectures in Understanding Linux Technical Q&A, practical way of explanation is wonderful. Hopefully I can perform well in my next interview..

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1562490
udemy ID
2/20/2018
course created date
11/21/2019
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