IT 241 Saudi Electronic University Operating System Questions

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College of Computing and Informatics
Assignment 2
Deadline: Monday 26/07/2021 @ 23:59
[Total Mark for this Assignment is 6]
Student Details:
Name:
ID:
CRN:
Instructions:
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You must submit two separate copies (one Word file and one PDF file) using the Assignment Template on
Blackboard via the allocated folder. These files must not be in compressed format.
It is your responsibility to check and make sure that you have uploaded both the correct files.
Zero mark will be given if you try to bypass the SafeAssign (e.g., misspell words, remove spaces between
words, hide characters, use different character sets or languages other than English or any kind of
manipulation).
Email submission will not be accepted.
You are advised to make your work clear and well-presented. This includes filling your information on the cover
page.
You must use this template, failing which will result in zero mark.
You MUST show all your work, and text must not be converted into an image, unless specified otherwise by
the question.
Late submission will result in ZERO mark.
The work should be your own, copying from students or other resources will result in ZERO mark.
Use Times New Roman font for all your answers.
Question One
Pg. 01
Learning
Outcome(s): LO1
Question One
Describe the OS
Consider the following resource allocation graph and check whether it contains
deadlock or not? Justify your answer in detail.
mechanism for
process
management,
timing, memory,
I/O, file and
concurrency
management.
2 Marks
Question Two
Pg. 02
Learning
Outcome(s): LO5
Assess the
Question Two
Consider the following page reference string:
4, 6, 7, 8, 6, 7, 8, 4, 6, 4, 4, 7, 5, 8
performance of
the programs
through well
designed
measurements
using OS timings
features.
3 Marks
Assuming demand paging with three frames, how many page faults would occur
for the following replacement algorithms? illustrate your work.
i.
ii.
FIFO replacement.
LRU replacement.
Question Three
Pg. 03
Learning
Outcome(s): LO1
Describe the OS
mechanism for
process
management,
timing, memory,
I/O, file and
concurrency
management.
Question Three
1 Marks
What is swapping? explain the terms “swap in” and “swap out” with a neat
diagram. Explain under which circumstances page faults occur and how they
are resolved by the operating system.