Unix Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Unix Interview Questions

Questions Answers Views Company eMail

How do I get the port number for a given service?

1 2574

How do I properly close a socket?

1 2679

What is the difference between close() and shutdown()?

1 2774

Explain the TIME_WAIT state.

1 2570

How can I put a timeout on connect()?

1 2466

Why does the sockets buffer fill up sooner than expected?

1342

How often should I re-transmit un-acknowleged messages?

1 2020

of the socket? Does doing a connect() call affect the receive behaviour?

1 2215

When should I use UDP instead of TCP?

1 2202

How can I read only one character at a time?

1 2249

What is the difference between SO_REUSEADDR and SO_REUSEPORT?

1807

How do I get my server to find out the clients address / host- name?

1 2106

What exactly does SO_KEEPALIVE do?

1 2055

What exactly does SO_REUSEADDR do?

1 2256

How come I get address already in use from bind()?

1 2121

Un-Answered Questions { Unix }

List a few significant features of unix?

1067

What are a shell in unix and its types?

973

How to copy files from one directory to other in unix?

861

How do I grep recursively in unix?

963

Which mode executes the fault handler?

1053

Is unix is a programming language?

978

How do I find previous commands in unix?

1195

What do chmod command do?

1227

What is the window of the working set of a process?

1070

What is the general format of unix command syntax?

1945

You have a file called tonky in the directory honky. Later you add new material to tonky. What changes take place in the directory, inode, and file?

1184

What is meant by the term super user?

867

Explain mount and unmount command.

1226

What is path variable in unix?

1000

how to kernel protected memory?

2374

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