A directory of Objective Type Questions covering all the Computer Science subjects.

1. Which system call returns the process identifier of a terminated child?
a. wait
b. exit
c. fork
d. get
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Answer: (a).wait

2. The process related to process control, file management, device management, information about system and communication that is requested by any higher level language can be performed by __________.
a. Editors
b. Compilers
c. System Call
d. Caching
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Answer: (c).System Call

3. A process that is based on IPC mechanism which executes on different systems and can communicate with other processes using message based communication, is called ________.
a. Local Procedure Call
b. Inter Process Communication
c. Remote Procedure Call
d. Remote Machine Invocation
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Answer: (c).Remote Procedure Call

4. Message passing system allows processes to :
a. communicate with one another without resorting to shared data.
b. communicate with one another by resorting to shared data.
c. share data
d. name the recipient or sender of the message
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Answer: (a).communicate with one another without resorting to shared data.

5. An IPC facility provides at least two operations :
a. write message
b. send message
c. receive message
d. both b and c
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Answer: (d).both b and c

6. Remote Procedure Calls are used :
a. for communication between two processes remotely different from each other on the same system
b. for communication between two processes on the same system
c. for communication between two processes on separate systems
d. None of these
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Answer: (c).for communication between two processes on separate systems

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