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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
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تفاصيل الدورة
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 servers 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?
تحديث بتاريخ 14 November, 2018 - أقل
