Cop 103 Operating Systems Question Paper
Cop 103 Operating Systems
Course:Bachelor Of Business Information Technology
Institution: The Presbyterian University Of East Africa question papers
Exam Year:2016
PRESBYTERIAN UNIVERSITY OF EAST AFRICA
NAKURU CAMPUS
SCHOOL : DEPARTMENT OF COMPUTER SCIENCE AND IT
PROGRAM : DEGREE IN BBIT
COURSE CODE : COP 103
COURSE TITLE : OPERATING SYSTEMS
DATE : APRIL, 2016 (3 STUDENTS)
Read the instructions carefully:
i. Mobile Phones ARE NOT allowed in the examination room
ii. Time allowed is 2 hours
iii. No bags OR reference material of any kind should be in the examination room
iv. Answer questions ONE and any other TWO questions
v. Do not write on the question paper. Any rough work should be written at the back of the examination booklet and crossed through.
vi. Only registration numbers should appear on the booklet.
vii. Writing a name on the booklet will lead to cancellation of unit.
This paper contains 3 printed pages
QUESTION ONE (30 MARKS)
a) Define the following terms; (10 marks)
i. Process
ii. Threads
iii. Paging
iv. Multiprogramming
v. Semaphores
b) The operating system is the core software component of a computer. It performs many functions, discuss (8 marks)
c) What are the typical information that is stored in a process control block? (5 marks)
d) List 4 Examples of operating system (4marks)
e) Discuss the concept of multiprogramming? (3 marks)
QUESTION TWO (15 MARKS)
a) Using a block diagram, discuss the structure of an OS (10 marks)
b) One of basic functions of an operating system is Booting the computer. Discuss the booting process (5 marks)
QUESTION THREE (15 MARKS)
a) Discuss the attributes below as they apply to files and directories
i. Read-Only
ii. Hidden
iii. System
iv. Volume Label
v. Archive (10 marks)
b) An operating system must provide a number of operations associated with files so that users can safely store and retrieve data. List five file operations (5 marks)
QUESTION FOUR (15 MARKS)
a) Explain the following types of file extensions;
i. .dll
ii. .txt
iii. .exe
iv. .doc
v. .bas (10 marks)
b) Explain necessary causes for deadlock (5 marks)
QUESTION FIVE (15 MARKS)
a) Using a well labelled diagram. Discuss discrete process states (10 marks)
b) Discuss the similarities between Process Vs Threads (5 marks)
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