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

Unix Interview Questions

Questions Answers Views Company eMail

Why do I get connection refused when the server is not running?

1 2316

How can I set the timeout for the connect() system call?

1468

Why does connect() succeed even before my server did an accept()?

1 2049

How do I convert a string into an internet address?

1337

What are socket exceptions? What is out-of-band data?

1 2201

Why do I keep getting EINTR from the socket calls?

1 2038

Is there any advantage to handling the signal, rather than just ignoring it and checking for the EPIPE error? Are there any useful parameters passed to the signal catching function?

1374

How do I send [this] over a socket?

1 2161

How come select says there is data, but read returns zero?

1 1992

How can I force a socket to send the data in its buffer?

1569

What are the pros/cons of select(), non-blocking I/O and SIGIO?

1320

Why does it take so long to detect that the peer died?

1465

Why do I get EPROTO from read()?

1410

Where can a get a library for programming sockets?

1 2068

Whats the difference between select() and poll()?

1593

Un-Answered Questions { Unix }

Enumerate some of the most commonly used network commands in unix?

1122

What is the difference between cat command and more command?

1145

What is a superuser?

906

What is the command to connect to remote terminals

955

what is the advaantage of each user having its own copy of the shell?

2518

Which command is used to kill the last background job?

1299

Is unix is a programming language?

928

What is grep and how do you use it?

1070

What is a command and examples?

1173

What are the advantages of unix?

986

How to write the program on full-duplex communication on bidirectional?

990

What is the comma to display different lines that are found when compare two files?

1107

Explain different types of Unix systems.

905

Name the command which is used to execute system calls from exe?

899

What is a socket connection?

889

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