LINUX INTERVIEW QUESTIONS

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I know for a beginner how tough to find which types of question an interviewer will ask to ?? ...

Ohhh!!! I can't forget myne 1st interview with Directi for Linux profile ...I was aware of all the questions answers that they asked me, but because lack of confidence and theoretical knowledge about topics  have missed that opportunity...

==>> Below are some interview questions from my interview journey hope it will help you bit.....

00.00 >> Off course!!! "Tell me something about yourself"? an annoying question?  Any way any how you have to face this question ...

Don't loose your confidence here say frankly all about your technical background present and past except about your family..also give only that answer that related to your education knowledge and achievements ..... don't say to much aggressively which create negative impression towards like "apne hank rha hai.. isse to dekh lunga tech que me!!!  '(';')'   '(';')

1>  Diff between RHEL 4 & 5 ?
2>  About boot process in sort?
3>  Types of DNS?
4>  how dns works?
5>  what is squid?
6>  port number of data ftp, ftp, telnet, smtp, sql
7>  what is sendmail hows it's works
9>  How to block downloading in squid
10> How you handle Load on server?
11> Fields in crontab?
12> Any backup tools you know?
13> what is amanda why to use?
14> How to update your server?
15> rpm commands to update, erase, install etc...
16> Use squid to do authentication of users on browser?
17> Use of NFS and samba?
18> Diff NfS & Samba?
19> What is SeLinux?
20> Default cache size in Squid?
21> I want to assign NISdomainname via DHCP is it possible how?
22> How to setup networking IP doaminname etc...
23> What is & Difference between find and grep
24> About Raid tool used & level diff
25> I want to do remote login how?
26> Use of NIS?
27> Use of Log files?
28> I sent a mail but lost how to find it where is ..?
Some other
- How to find which user surfed which site? squid not log file
- which command you use for maintaining system info to submit to your manager?
- How you reduce load on your server
- tools used to check system load and performance
- Do you know anything about DHCP on windows server
- Application that you much like can confident about that
- In sort what you know in Linux
- Can you compile C program in linux how?
- about Linux shell scripting any other scripting language you know

-
Another that some asked to me?
1> why i hire you?
2> what is mean and responsibilities of a sys admin
3> why you chose Linux as career?
4> About your current job and responsibilities
5> After doing job in diff field near about 2 years why you want to move your path
6> Why Linux not Windows?  :)
7> What is your strength?
8> Do you have any question?
9> Anything that you want to ask?
10> What is your exception?
11> expected salary?
12> notice period how soon you can join?

Our HR department will inform you -- Why this?? :(

Some exact questions i don't remember so i just written in sort!!!

================== Some more1s>

1> Size of MBR, fields in MBR, PT size in MBR
2>  Dir /abcd have 744 perm to user but file /abcd/file1 has 777 permission can a normal
 user edit file1, if no why?
3>  What happen if a deleted /boot/lilo.conf and restarted the system and
       What if deleted /boot/grub.conf and restart the system ???
4>  what called #! /bin/bash
5>  There a parameter in vsftpd conf file without which vsftpd server will not work
6>  Diff GRUP & LILO techinical DIFF ...
7>  Can we authenticate only users login on vsftpd by LDAP how
8>  Port number SAMBA, DHCPD, SQUID, DNS, POP, POP, NTP on secure level, IMAP on secure level,  sendmail on secure level, Postfix..
9>  Diff TCP/UDP
10> What are 7 Layers TCP/IP eg of each
11> Fields in DNS
12> USe of ip_farwording
13> where is config file of sshd service.
14> what is tunnel
15> What is mutt
16> fields in top command meanings
    1>load average 2> %id     3> Mem: 4> SWAP
17> What is the use of swap partition
18> can we encrease swap partition size how
19> syntax of for loop in bash
20> awk stand for
21> can we change vsftpd default directory location
22> Can we change Default Directory in apache
23> Can we use index.php insted of index.html as default page in apache how .
24> visudo command will open file?
25> Diff RHEL & CentOS
26> Diff LILO GRUB
27> Advantages of GRUB
28> What is iptables, Firewall, netfilter ..?
29> write iptable to block use of sshd service via port 22 from outside of range 192.168.8.10-192.168.8.50
30> Tables in iptables
31> what is cluster & virtualizaton just basic, what you understand by term..
32> what is domain and hostname concept.
33> can a system have multiple hostname/domainname how?
34> How many virtual ips you can assign to a single interface.
35> What is netmask/ broadcast IP ?
36> What is inode in Linux
37> What is Raid5, advantage of Raid5 over Raid4 over Raid1 over Raid0
39> Can we safely delete /usr/shares  Impacts ?
40> Use of loge levels ?
41> What is suid, guid and sticky bit
42> Can you open multiple vi on same terminal at a time
43> What is sed command, any advantage
44> Use of KILL and KILL command
45> Use KILL command to reload a service eg: HTTPD
46> What s vlan
47> How to find number of users on your system
48> Find port use by a process
49> Find file's opened by a process
50> what is fork and prefork
51> What is sticky bit, suid, guid, when to use which
52> Ramdisk when and how to use?
53> Diff Samba and NFS
54> What is tcpdump, when and how to use.
55> print whole file other than cat
56> 2 adv. dis. of ext2 ext3 ext4
57> Can we mount ext-ext3, ext3-ext2, ext2-ext4 ,, ext4-ext3, ext3-ext4, ext4-ext2
58> What is hub, switch and router
59> What is datadump and coredump
60> What is segmentation fault
61> What is diff between Single user mode and Emergency mode
62> How to downgrade an rpm .
63> How to rebuild rpm db
64> List files in rpm
65> reinitialize file permission of an installed rpm
66> Active and Passive FTP
67> What is getopts how it's work
68> Diff Shell Login and Intractive Login

DNS,
1> What is SOA record
2> What is MX record
3> nslookup, check which entry first
4> use of nsswitch.conf