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 2585

How do I properly close a socket?

1 2692

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

1 2790

Explain the TIME_WAIT state.

1 2582

How can I put a timeout on connect()?

1 2476

Why does the sockets buffer fill up sooner than expected?

1352

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

1 2031

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

1 2228

When should I use UDP instead of TCP?

1 2210

How can I read only one character at a time?

1 2259

What is the difference between SO_REUSEADDR and SO_REUSEPORT?

1811

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

1 2111

What exactly does SO_KEEPALIVE do?

1 2073

What exactly does SO_REUSEADDR do?

1 2272

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

1 2129

Un-Answered Questions { Unix }

Which unix command to make a new directory?

1158

What is time_t?

1128

What does tr H do in unix?

1058

Which command is used to create a directory?

1179

How many socket connections can a server handle?

866

Are unix sockets faster than tcp?

862

What are conditions on which deadlock can occur while swapping the processes?

1134

What is unix used for?

974

How does pipe () work?

1106

Why is grep called grep?

1312

How does unix socket work?

922

What is the use of egrep command in unix?

1202

How do I use grep to find a file?

1123

Why unix terminals are called dummy terminals?

1104

How to remove the first line/header from a file in Unix?

1071

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