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Comp 123 2008/2009 Academic Year Question Paper

Comp 123 2008/2009 Academic Year

Course:Bachelor Of Science In Computer Science

Institution: Kabarak University question papers

Exam Year:2009

COURSE CODE: COMP 123
COURSE TITLE: DATA STRUCTURES
STREAM: SESSION III
DAY: WEDNESDAY
TIME: 9.00 – 11.00 A.M.
DATE: 12/08/2009
INSTRUCTIONS:
Attempt Question ONE and Any other TWO.
QUESTION ONE (30 marks)
(a) (i) Describe a stack. [2 marks]
(ii) Write algorithm to push an element to the stack [4 marks]
(b) (i) Describe the queue. [2 marks]
(ii) WRITE STEPS used to insert an element to the queue [4 marks]
(c) Discuss types of data structures [4 marks]
(d) (i) What is an array? [2 marks]
(ii) Discuss the major operations which can be performed in an array [4 marks]
(e) Discuss any two types of memory used in data structures [ 4 marks]
(f) What is a binary tree? [4 marks]
QUESTION TWO (20 marks)
(a) What is a heap? [2 marks]
(b) Write short on garbage collection and its advantages [6 marks]
(c ) Discuss the use of new and delete in memory allocation [4 marks]
(d) Discuss and highlight four advantages of the linked list [4 marks]
(e) Write algorithm to find a node in a binary tree [4 marks]
QUESTION THREE (20 marks)
(a) Discuss kinds of binary trees [4 marks]
(b) Explain the properties of a binary tree [4 marks]
(c) Explain with the aid of a diagram how you can represent a tree through
linked representation. [4 marks]
(d) What is a string? Discuss any 4 major functions which can be performed
by a string [ 6 marks]
(e) Discuss briefly about ordered tree [2 marks]
QUESTION FOUR (20 marks)
(a) (i) What is a list? [ 2 marks]
(ii) Explain with the aid of diagram the linked list [4 marks]
(b) What is doubly linked list explain with the aid of the diagram [6 marks]
(c) Explain the steps used to add a node in a list [4 marks]
(d) Write the algorithm used to delete element from the list [4 marks]
QUESTION FIVE (20 marks)
(a) (i) What is a linked stack? [2 marks]
(ii) Explain with the aid of the diagram its merits [2 marks]
(b) Write algorithm to pop an element from the stack [4 marks]
(c) Discuss the steps used to add and delete elements in a queue [4 marks]
(d) What is a circular queue? Explain with the aid of the diagram [4 marks]
(e) Briefly explain the applications of the queue [4 marks]

Comp 123 2008/2009 Academic Year Question Paper

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