# Education In Pakistan

## VU CS101 Introduction to Computing Final Term Examination – Spring 2005

.

CS101 Introduction to Computing

Final Term Examination – Spring 2005

Time Allowed: 150 Minutes

question:

1. This examination is closed book, closed notes, closed neighbors.

a. There is no choice.

b. You will have to answer correctly all questions in this

examination to get the maximum possible marks.

3. 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.

4. Examination also consists of multiple-choice questions. Choose

a. If you believe that two (or more) of the choices are the correct

ones for a particular question, choose the best one.

b. On the other hand, if you believe that all of the choices

provided for a particular question are the wrong ones, select

the one that appears to you as being the least wrong.

5. All Web development questions should be answered using the

HTML/JavaScript syntax.

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

of using unfair means. Anyone found involved in cheating will get

Total Marks: 50

Total Questions: 11

.

Question No. 1

________________ is the protocol used for file transfer.

Marks : 02

o

o

o

o

Question No. 2

www

smtp

ftp

http

Marks : 06

What is difference between SMTP and POP?

Question No. 3

_____________________ is the correct JavaScript syntax.

Marks : 02

o

o

o

o

while{a<=b}

while{a<=b};

while(a<=b);

while(a<=b)

Question No. 4

Marks : 02

You are required to develop a web page using HTML and JavaScript. Page

should have 4 buttons. Three buttons have different color(Red,Green,Blue).

Fourth button is used as “Refresh” button. Finally the page should be

represented as given in Fig.

Develop a function in JavaScript that changes the color of the back ground

according to the button clicked. “Refresh” buttons is use to reset the color

of page.Hint: Refresh button is used to set the background color of the page

to white.

[Example: When Green button is clicked the back ground color will be set to

“Green” and so on.]

.

Question No. 5

Examine and write down the value printed after execution of following

statements.

Marks : 02

1. document.write( 2 + Math.PI ) ;

2. document.write( “2” + “3” ) ;

3. document.write( “2” + Math.PI ) ;

4. document.write( “Yes” + false ) ;

5. document.write( 2 + 3 ) ;

Question No. 6

(Math.PI=3.141)

Marks : 02

Applications talk to devices through the OS and OS talks to and manages

devices through_________________________ .

o

o

o

o

Application Interface

File System

Device Driver

Kernel

.

Question No. 7

How Data Security can be improved in Database Management System?

Question No. 8

________________ is readily understood by microprocessors and this

language is very difficult to write in for human programmers.

o Low Level Language

o Machine Language

o High Level Language

o Assembly Language

Question No. 9

Marks : 02

Marks : 02

Marks : 08

a) Write an Inline JavaScript code that prompts the message “Welcome

to VU” when button is clicked.

b) Convert the binary number 1110011 into decimal number System.

Mention each step.

Question No. 10

Examine the syntax carefully and determine the output:

name = “virtual university” ;

document.write( name.toUpperCase( ) ) ;

Marks : 02

o

o

o

o

virtual university

Virtual University

Virtual university

VIRTUAL UNIVERSITY]

Question No. 11

Marks : 08

Define AI (Artificial Intelligence) in one line. Name sub categories of AI.