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Tag: VU. CS101 -. INTRODUCTION .TO .COMPUTING .(Session – 3 ). FINALTERM .EXAMINATION. SPRING. 2006

VU CS101 – INTRODUCTION TO COMPUTING (Session – 3 ) FINALTERM EXAMINATION SPRING 2006

.

FINALTERM EXAMINATION

SPRING 2006

CS101 – INTRODUCTION TO COMPUTING (Session – 3

)

Marks: 50

Time: 120min

StudentID/LoginID: ______________________________

Student Name: ______________________________

Center Name/Code: ______________________________

Exam Date: Saturday, August 05, 2006

Please read the following instructions carefully before attempting any

of the questions:

1. Attempt all questions. Marks are written adjacent to each question.

2. Do not ask any questions about the contents of this examination

from anyone.

a. If you think that there is something wrong with any of the

questions, attempt it to the best of your understanding.

b. If you believe that some essential piece of information is

missing, make an appropriate assumption and use it to solve the

problem.

c. Write all steps, missing steps may lead to deduction of marks.

3. The paper is tool independent.

**WARNING: Please note that Virtual University takes serious note of

unfair means. Anyone found involved in cheating will get an `F` grade

in this course.

For Teacher’s use only

Question

Marks

1 2 3 4 5 6 7 8 9 Total

Question No: 1

( Marks: 2 )

– Please choose one

Which statement is wrong for naming an identifier?

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Identifiers are names used by JavaScript to refer to variables, objects, properties,

methods, and functions.

An identifier must begin with an alphabetical character (a-z or A-Z), underscore

“_” character or $ character.

Subsequent characters can be an alphabetical (a-z or A-B) or numeric character

(0-9) or an underscore

Question No: 2

( Marks: 2 )

– Please choose one

Which of the following words can’t be used for naming an identifier in JavaScript?

struct

plugin

parent

package

Question No: 3

( Marks: 2 )

– Please choose one

Data Management comes up with different issues except one:

► Data entry

► Data updates

► Data integrity

► Data security

► Data presentation

Question No: 4

( Marks: 2 )

– Please choose one

.

Choose correct statement.

► The value of a variable can not be changed during execution of the script.

► In JavaScript a variable’s type is defined before usage.

► The untyped feature makes JavaScript simpler to program in when developing short

programs.

► The untyped feature makes JavaScript simpler to program in when developing big

programs.

Question No: 5

( Marks: 10 )

What kind of operations take place inside Microprocessors Building Blocks? Enlist them with brief

description.

Question No: 6

( Marks: 8 )

Is there any way to call multiple functions with a single event in JavaScript? Give an example.

Question No: 7

( Marks: 8 )

a) Differentiate between SMTP and POP3 server. (3 marks)

b) How can you justify that a DBMS is better to use than Flat-file database? (5 marks)

Question No: 8

( Marks: 8 )

What will be the output of this programme? Write comments where you find “//” symbol in the

following code.

<html>

<head>

<script language=”JavaScript”>

function doSomething() {

setTimeout(‘doSomething()’,10000);

// 1

// 2

}

</script>

</head>

<body onLoad=”doSomething()”> // 3

document.write(“Virtual University of Pakistan”);

</body>

.

</html>

Question No: 9

( Marks: 8 )

a) How Trojan Horses and Worms affect a computer system? What guidelines should be adopted

to troubleshoot with malicious softwares? (6 marks)

b) Which part of a virus consists of malicious computer instructions? (2 marks)

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