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LinuxPrepResources
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### Below are Linux interview topics ###
- Collecting each and every question is not possible. So, below are the topics which can be refered while preparing:
1) Basics:
Legacy BIOS vs UEFI | Partition table:GPT vs MBR | Boot Loaders: GRUB, GRUB2, LILO | Booting process legacy vs uefi
Initramfs, Intitramrd, vmlinuz
runlevels, targets, sysvinit, systemd, process id 1,
Anaconda, kickstart,
Boot troubelshooting, Installing grub,
Kernel panics,
---
Links:
Legacy BIOS vs UEFI: https://fossbytes.com/uefi-bios-gpt-mbr-whats-difference/
MBR vs GPT partition table: https://www.mustbegeek.com/difference-between-mbr-and-gpt/
https://docs.google.com/document/d/1GJTPKkasOxuShUwi3VuJ_Wjpxf5WjLLfcxv5Xt9LWOs/edit
GRUB vs GRUB2: https://ngelinux.com/difference-between-grub-0-97legacy-grub-and-grub-2-in-linux/
and https://linoxide.com/best-difference-between-linux-grub-and-grub2-bootloader/
and https://www.codementor.io/@packt/grub-and-grub2-qevq1yree
Initrd,Initramfs: www.ngelinux.com/difference-between-initrd-and-initramfs-all-what-you-need-to-know/
Complete boot process https://docs.google.com/document/d/1rAFF2fKD-o5NiO4NlOSeqkMTvJ_wwwTe9IwZCwX11Rc/
================
2) Shell:
Types of sheels, env_varibales, global variables, export command, profiles and bashrc files, standard streams, redirections, regexs,
scripting, config files,
----
Links: \
Differnt types shells: https://www.edureka.co/blog/types-of-shells-in-linux/
Special variables: https://www.tutorialspoint.com/unix/unix-special-variables.htm#:~:text=If%20a%20script%20receives%20two%20arguments%2C%20%24%2A%20is,process%20ID%20under%20which%20they%20are%20executing.%20%24%21
Questions:
https://www.guru99.com/shell-scripting-interview-questions.html
https://www.edureka.co/blog/interview-questions/shell-scripting-interview-questions/
https://www.upgrad.com/blog/shell-scripting-interview-questions-answers/
https://linuxhint.com/bash_scripting_interview_questions/
https://www.linuxtechi.com/linux-shell-scripting-interview-questions-answers/
https://linoxide.com/shell-scripting-interview-questions-answers/
====
3) Process:
nice,renice, fuser, zombie, orphan, IPC's, process states, Exit status, kernel and user space, cache, buffer, Avg load, strace
top, process monitoring, system calls,
====
4) Files, filesystem, storage and permissions:
fileperms rwx 421, umask ,special permissions, ACL's
Xfs,ext2/3/4,btrfs, inodes, hard/soft links, fdisk,parted
lvm, raid, benchmarking tools
Luks,DRBD,
fstab,df,du,swap, /proc filesys
multipath, device mapper, dmsetup,
nfs, iscsi,
====
5) Security:
selinux, iptables, firewalld
polkit, ACL's, SSL/TLS
md5,sha,
===
6) System admin tools/commands:
Find, locate,
Grep, Awk, sed, cut,wc,sort
tar,zip,bzip,gzip,zcat
lsof, curl, wget
dd,hexdump, nohup,screen, atime,mtime,ctime
ssh, top, strace
===============================================
Linux Interview Questions link:
https://www.interviewbit.com/linux-interview-questions/
https://www.besanttechnologies.com/linux-interview-questions-and-answers
https://www.golinuxhub.com/2018/06/scenario-based-interview-question-beginner-experience-linux/
https://www.temok.com/blog/linux-interview-questions/
https://svrtechnologies.com/new-54-linux-admin-interview-questions-and-answers-pdf/
https://linoxide.com/linux-interview-questions-answers/
https://github.com/mxssl/sre-interview-prep-guide