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Computer network-06-05-21

Total questions: 15

Worksheet time: 6mins

Name
Class
Date
1.

Data is sending from sender but received data not same as sended data we call it as.......

a)

Data wrong

b)

Data missing

c)

Error

d)

Data not correct

2.

Error is in how many types____

a)

1

b)

2

c)

3

d)

4

3.

In a 8-bit data only one place is changed from 0 to 1 or 1 to 0.we call it as this is a ......

a)

Multiple but error

b)

Single bit error

c)

Burst error

d)

Non of the above

4.

In a data bit packet continuous sequence of places are changed from 0 to 1 or 1 to 0 we call it as.....

a)

Multiple bit error

b)

Single bit error

c)

Burst error

d)

Non of the above

5.

How many error detection and correction mechanism are available in detail seperately? choose correct answer

a)

5&1

b)

3&2

c)

4&1

d)

6&1

6.

Simple parity bit also call it as,............

a)

VRC

b)

LRC

c)

2d-parity

d)

Non of the above

7.

The above image shows the parity bit detection and it will come under which parity bit detection mechanism

a)

LRC

b)

VRC

c)

Simple parity

d)

2-D parity

8.

The above image wil come under which type of parity bit .

a)

LRC

b)

VRC

c)

Simple parity

d)

2-D parity

9.

If 2-bits are in the same data packet are changed or same position in in the different data packets are corrupted is a draw back of which parity bit.

a)

2-D parity

b)

Simple parity

c)

VRC

d)

LRC

10.

In check sum we will use the .......

a)

Addition

b)

Substraction

c)

Multiplication

d)

Division

11.

full form of crc--------------

(a)  

12.

In crc we will use the which type of binary operation?

a)

Binary addition

b)

Binary substraction

c)

Binary division

d)

Binary multiplication

13.

In crc,when we will accept the data in receiver side?

a)

Remainder all positions are non zeros

b)

Remainder all positions are zeros

c)

Remainder anyone position is zero

d)

Remainder any one position is one

14.

How many error correction mechanism are available?

a)

1

b)

2

c)

5

d)

3

15.

Hamming code is a combination of

a)

Data + check sum

b)

Data+crc

c)

Data +parity bits