
CSI3131 Midterm S2019
Authored by Rafael Arif
Computers
University

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21 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
To access the services of operating system, the interface is provided by:
System calls
API
Library
Assembly instructions
None of the above
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In operating system, each process has its own:
address space and global variables
open files
pending alarms, signals and signal handlers
all of the above
none of the above
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which system call returns the process identifier of a terminated child?
wait
exit
fork
get
exec
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The number of processes completed per unit time is known as
Response Time
Throughput
Efficiency
Turnaround Time
None of the above
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The Process Control Block (PCB) is:
A data structure
A secondary storage section
A Block in memory
All of the above
None of the above
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The degree of multi-programming is:
the number of processes executed per unit time
the number of processes in the ready queue
the number of processes in the I/O queue
the number of processes in memory
none of the above
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The parent process completes execution, but the child keeps executing, then the
child process is known as:
Orphan
Zombie
Body
Dead
None of the above
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