Chemistry s

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1/93

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First/Second

Semester

B.E.

Degree Examination,

June/July

2011

Computer

Concepts

ancl

C

Programming

Time:3

hrs.

Max. Marks:100

Note: l.

Answer

FIVEfull

questions

choosing

at least

twofrom

each

part.

2, Answer

all

objective type

questions

only

in

OMR

sheet page

5

of the answer booklel

3.

Answer

to

objective type

qaestians

on sheets

other than

OMR

will

not be

valued

PART

-

A

I a. Select the correct

answer

:

i)

Which

of

the following

device

stored instructions

that help

computer

to

start up?

A)

Joystick

B)

RAM

C)

ROM

D)

Monitor

ii)

A

collection

of

8-bits is called

A) Byte B) Word

C)

Record

D) File

iii)

Which

of

the following

is not an

output

device?

A)

Printer

B)

Keyboard

C)

VDU

op D)

CRT

Screen

iv)

Which

of

the

following

is not a

type

of keyboard

connector?

A)

5-pin

connector

B)

6-pin

connector

C)

8-pin connector

D)

USB

connector.

(04

Marks)

b.

with

a neat

diagram,

explain

the basic

structure

of a

computer.(08

Marks)

c.

Explain

two

types

of

monitors

based on the technique

used

to

display

image

(04

Marks)

and

text.

d. i)

Convefi

the

decimal

number

3

I

l0

to

binary fonn.

ii)Convert

the

binary

number 001

X

1

tr

0

to

decimal.

(04

Marks)

2 a.

Select the

correct

answer

:

i)

Unlike a

transistor,

a magnetic disk

can

store data

without

a

continual

source of

A)

electricity

B)

RPMs

C)

polarity

D)

light s I

ii)

A magnetic

disk's tracks

are divided

into

smaller

parts

called

A)

clusters B)

sectors

C)

bytes

D)

slices

iii)

A

translator

which

reads

an

entire

program

written

in

high level

language and converts

itinto

machine

language

code

is

A)

Apsernbler

B)

Translator

C)

Compiler

D)

System

software

iv)

A

distributed

network

cqntiguration

in

which

all

data/information

pass

through center

computer

is

A)

Bus

network

B)

Star

network

C)

Ring

network

D) Point-to-point

network

(04

Marta)

,b'

What

is an

operating

system?

List

and

explain

different

types

of

operating system

based

on

,/ur?_g-?

and

requrrement.

(09

Marts)

/

c.

What is

OSI

model?

Explain

the principle

used

to develop

seven

layers

of(04

Marks)

/

oSI

modet.

d,

List

the

basic

components

of

a network.

3

a. Select

the

correct

answer

:

i) which

of

the

following

are

nor

valid

identifiers?

A)

student

name

B)

_total

C) 2narnes D) int

(04

Marks)


2/93

ii)"

Which

of'the

fQllolving

are not

character

corlstants'J

A)'C'B)

"C"

C)

'bb'D)

,?'

iii) Which

field

specification

is

usecl

to read

or

write

short

ipteger'?

A)%cB)%dC)%f

D)

%hd

iv) Which

function

reads

data

from

the

keyboard?

A)

display

B)

read

C)

printf

D)

scanf

b. List

and

explain

coding

constants.

c.

What

is

variable?

Explain

variable

initialization.(O4

Vflanks)

d.

Explain

the

structrlre

of

'C'

prograrn.

4.

a

Select

the correct

answer

i)

is

used

to

determine

the

order

in

which

diflbrent

operations

in

an

expression

are

evaluated.

A) Associativity

B)

precedence

C)

evaluation

D)

format

ii)

which

of the

following

is not

a valitl

assignment

expression?

A)

X

=

23

B)4X:

8

:3

C)Y%:

5 D)x:

r

=5

iii)

Which

of the

following

is

not

an

expression

format?

A)

assignmentB)conditional

C)

binary

b)

primary

iv)

Which

of the

following

has

highest

precedence?

A)-prefixB)

Multiplyc)

incrementD)

Assignment

(04

Marks)

b.

If a

=2,b:

8,

c

:4,

d

=

10,

what

is

the

value

of

each

of

tire

following

?(04

Martrs)

i)

a+b/c.d--c/aii)

(b

I a)%

c

iii)

a**

*

b--+iv)

**a

*

b__

+

++d

c.

Write

a

program

to

convert

temperature

from

Fahrenheit

to'behius

using(og

Marks)

the

following

formula.

d.

Convert

the

following

mathematical

expressions

into^'C'

expressions:(g4

h{arks)

i)a+bxc

ii)

a+biii)r/

s(s

-

a)

x

(s

-

b)

x

(s-

,)

iu) x2

+

y,

-r

Zxy

PART

-

B

5

a.

Select

the

correct

answer

:

i)

A

function

that

calls itself

for

its

processing

is

known

as

A)

Inline

function

B)

Nested

function

C)

Overloaded

function

D)

Recursive

function

ii)

we

declare

a

funetion'with

if

it

does

not

have

any

return

type.

A) long

B)

double

C)

void

D)

int

(04

Marks)

(06

Marks)

(06

Marks)

level

access.

ii)

Variables

inside

parenthesis

of

a

function

declaration

have

A)

local

B)

global

c)

module

D)

universal

iv)

Arguments

of

a function

are

separated

with

n)rr::r:"r(,)

B)

semicolon

(;)

c) colon

(:)

D)

None

of these.

(04

Marks)

l T,t1qh

the

different

ways

of

passing

parameters

to

tunction.(0g

Marksj

u'

wnte

a

program to

accept

two

numbers from

the user

and

to

add and

(0g

Marks)

subtract

these

two

numbers

using'fuirctions

and

display

the

result

on

the console.

6

a.

Select

the

correct

answer

:

i)

Operator

used

in

logical

and

is

i

A)

&

B)

tc)

&&

E)

ll

ii)

Two-way

selection

is implemented

with

the

statement.

A)

case

B)

switch

C)

else

if

D)

if.else

iii)

Which

of the

following

is

nor

a

relational

operator?

A)

3*

o=

,3

i,

*k

rdo

Ca,

b0c.nd

x

rE

s3

-bB

5.u

trL

EA

hE

o

li:

ho

3E

xqi

bDo

trE0

=d

H9

Xe)

5

eh

J

=u

5

(rr

Jr

sin2y

=

x3

cos2

y.

Find

the

orthogonal

trajectories

of

the

family

of curve

rn

cos

n0

=

an.

i)

The

normal

form

of

the

matrix

of

rank

r

is

(04

Marrs)

A)

[r'

ol

B)

t-l

ol

",

[o

ol

r-o

ol

^)

[o

o_l

D)

lr

rj

[r

rJ

D)

L;

il

i)

If

rank

of

the coefficient matrix

is

equal

to rank

of

the

,iugmented

matrix

then

equations

are

A)

consistence

B)

inconsistence

a

C)

have

no

solution

D)

have

infinite

number

of

solutions.

iii)

In

Gauss

-

elimination

method

coefficient

matrix

reduces

to

matrix.

A)

diagonal

g)

unit

matrix

c)

tri;g"iil

*;j

None

of these

iv)

The

system

of

linear

homogeneous

equations

have

trivial

solution

if

all

variable

are

(i

=

I

...

n)

A)

xi>0

B)

xi


89/93

lOMATl1

(06

Marks)

(04

Marks)

8

a.

i)

Each

eigen

vector

corresponding

to

a eigen value

is (04

Marls)

A)

unique

B)

no unique

C)

infinite

D) None

of

these

ii)

The

sum

of

the eigen

values

of the

matrix

is the

sum

of the elements

of

d. Find

the rank

of

the

Matrix

"ro

=

[]

i

: ;l

14

8 t2

'ul

Ll

2

3 4)

[-t

2

c.

Reduce

the

matrix

A:

i

,

2

L-1

-t

method.

A)

Anyrow

C)

diagonal

B)

Any

column

D)

Any

row

and

column.

iii)

A hornogeneous

expression

of the

second

degree in

any number

of variables is called

A)

linear

form

B) cubic

form

C)

quadratic

form

D) None of these

iv)

Every

square

matrix

satisfies its

own

"

equation.

A)

quadratic

B)

cubic

C)

aigebraic

D) characteristic

b.

Find

the

characteristics

equation

and eigen vector

of the

matrix

lz I ll

tt

A:iO

I

0l

[rtz)

(06

Marks)

-21

f

I

to

the diagonal

form

using

characteristic equation

o

I

(o6l\{arks)

d. Reduce

the

quadratic

form

l*

+

Sf

*

322

-

2yz

+

2zx

-

2zy

to

the canonicu,

a*ion

Marks)

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