Question Discussion & Solution

MCQ

The usefulness of signals as a general inter process communication mechanism is limited because ____________

they do not work between processes

they are user generated

they cannot carry information directly

none of the mentioned

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A fork system call will fail if ______________

the previously executed statement is also a fork call

the limit on the maximum number of processes in the system would be executed

the limit on the minimum number of processes that can be under execution by a single user would be executed

all of the mentioned

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Which of the following is not a filter command?

sort

grep

cat

None of the above

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Which of the following NIS clients returns the name of the NIS server used by the NIS client?

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The command chmod 761 letter is equivalent to

chmod 4=7, g = 6, o = 1 letter

chmod a = 761 letter

chmod u = rwx, g = rw, o = x letter

chmod 167 letter

None of the above

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MCQ

In most cases, if a process is sent a signal while it is executing a system call ____________

the system call will continue execution and the signal will be ignored completely

the system call is interrupted by the signal, and the signal handler comes in

the signal has no effect until the system call completes

none of the mentioned

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Introduction to Operating System

Types

Services

Structures

Processes

Threads

CPU Scheduling

Process Synchronization

Memory Management

Storage Management

Input Output Systems

Networking

Distributed Operating System

Protection and Security

Unix

Linux

MS Windows

Mixed

Operating Systems Overview

Process Management

Finding and Processing Files

File Management

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