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Old 02-16-2012, 09:51 AM   #1
LQ Newbie
Registered: Feb 2012
Posts: 1

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Linux FAQ


Can anyone help me how to justify the following questions in real Time scenerio.

I hope you all will support me for my better carrer

1. Which Linux distributions you have used? And what do you like to use best? Why?
2. How do you find out:
a. many physical cpus does a system have?
b. How much free memory is available?
3. How does the permissions rwx r-x rfor a user/group/other accessing a file, or a dir differ in meaning?

NIS: (high importance for the below questions)
1. How do you find which yp server you are bound to?
2. How do you find out which publicly accessible maps are served by that server.
3. What is a netgroups, and how many types of netgroups you can have?
4. What is the significance of a + sign in the password file? Which other files it affects?
5. How many clients do you think one NIS server can handle at one time, and how do you get over this limitation?

NFS(high Importance)
1. How do you find our exported file systems on an nfs server, if you have access only to an nfs client?
2. What things you need to do to scale an NFS server to handle more client connections simultaneously?
3. What is a stale nfs handle, and how do you recover from one?
4. What nfs mount options would you use in noisy network environment for the purpose of reliability?

File System:
1. What do you know about the following:
a. /proc
b. /sys
c. /etc/sysconfig
d. /dev
2. What is the relation between udev, and raw devices.

Hardware platformhigh importance)
1. What different hardware platform you are aware for that could be useful/lucrative in a data center environment?
2. What is cache-coherence?
3. What does it mean to have a program statically linked? And how is it possible to do this?
4. What happens to a child process that dies and has no parent process to wait for it and what consequence does this have? What is the most frequent cause of this?
5. What are the different signals you know that can be send by a kill command?
6. How to setup RSA authentication between two hosts ( using ssh without a password between two machines)?
7. What is the role of the % post directive in a kickstart file?
8. What do you know about automated installation?

Interconnects(high importance)

1. What different interconnects you are aware of?
2. Where do the routing/fabric mapping decisions takes place?
3. What is the difference between cut-through, and save & forward switching?

Networkinghigh importance)

1. How to disable ipv6?
2. How much do you know about bonding?
3. What problems does gigabit Ethernet, or some of the gigabit drivers introduce to the system?
4. What is a multicast, and what consequences could it have in your network?
5. Where do you configure an alias interface for eth0:0? Where that could be useful?
6. Which tools do you use to check if the network port is using either of the following and how:
a. Autonegotiate.
b. Full Duplex.

1. How to list hidden files only?
2. How to list 15 largest files/dirs?
3. What is the expected output of the following script and why:
a. (date; ps ef | awk {print $ 1}|sort||uniq|wc -1) >> acivity.log
b. For I in `seq w 1 10` ; do echo node$i |tee /tmp/count; done
Troubleshootingvery high importance)

1. How do you enable debugging, or what debugging facilities are available:
a. in network services
b. while compiling code
c. in kernel subsystems
2. What tools do you have available to you to troubleshoot the following
Give briefing on each tool to troubleshoot the below problems?
a. NFS problems
b. NIS problems
c. Network slowness
d. Disk problems
e. Memory problems
f. Installation problems
Old 02-16-2012, 09:58 AM   #2
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Registered: May 2001
Location: Belgium
Distribution: Arch
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Welcome to LQ

I hope you all will support me for my better carrer
Do you use linux?
Don't you think studying the questions, and finding the answers yourself,
will help you more, instead of doing a copy/paste from the answers?
I for one would never hire you.

Kind regards
1 members found this post helpful.
Old 02-16-2012, 10:26 AM   #3
LQ Newbie
Registered: Feb 2012
Location: San Bernardino
Distribution: Puppy Linux, Fedora,
Posts: 10

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I have used the Gnu/Linux distribution Ubuntu, Fedora, Puppy Linux, Knoppix, and soon to try out Linux Mint. I definitely like Fedora with Gnome 3. I'm using Puppy Linux with old hardware that I brought back to life thanks to Puppy Linux. Perfect for web browsing and learning programming. Each distribution you use will teach you something different. Start using a Gnu/Linux that interest you and start from there.
Old 02-16-2012, 10:26 AM   #4
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Registered: Jul 2003
Location: Birmingham, Alabama
Distribution: SuSE, RedHat, Slack,CentOS
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Originally Posted by fms.dhq View Post
Can anyone help me how to justify the following questions in real Time scenerio. I hope you all will support me for my better carrer
No idea what you're asking here. Either these are homework questions (which you should answer/look up yourself), or they're for an interview. If they're for an interview, and you don't know the answers, then you are not qualified for the job, and shouldn't be applying for it.

We will HELP you with specific questions, but you really need to think about what you're asking. Even if we spoon-feed you these answers and you can bluff your way into a job, what do you think is going to happen THEN?? Do you expect us here to give you EVERY answer and essentially do your job for you? Unless you have the skills and knowledge, you shouldn't be applying for the job, it's that simple.


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