Operating System Test 1 Computer Subject
Operating System Test 1 Computer Subject
Question 31
A process that has many short CPU bursts is called a _____?
Processes with frequent short CPU bursts are I/O bound processes.
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Question 32
An operating system module that performs context switching is called _____?
The dispatcher is responsible for context switching between processes.
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Question 33
A program is _____?
A program is a passive entity stored on disk until executed.
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Question 34
A process control block should contain _____?
The PCB stores identifiers, open files, and register values, among others.
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Question 35
If a process fails, most operating system write the error information to a _____?
Error details are typically written to a log file for debugging.
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Question 36
The _____ of a process contains temporary data such as function parameters, return addresses, and local variables.
The stack holds temporary data like function parameters and return addresses.
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Question 37
The following are valid process states _____?
Running, blocked, and waiting are valid process states.
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Question 38
The list of processes waiting for a particular I/O device is called _____?
Each I/O device has a device queue for processes waiting to use it.
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Question 39
Long-term scheduling is performed _____?
Long-term scheduling decides which submitted jobs are admitted to the system.
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Question 40
Which facility dynamically adds probes to a running system, both in user processes and in the kernel?
DTrace is a dynamic tracing framework for probing kernel and user processes.