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HND-CN01

Total questions: 10

Worksheet time: 45mins

Name
Class
Date
1.

What are the components of Data Communication?

a)

Sender

b)

Client

c)

Receiver

d)

Medium

e)

Bandwidth

2.

The number of characters that can be represented in ASCII-8 are

a)

128

b)

64

c)

256

d)

32

3.

The term "Full Duplex" correctly described as

a)

Conversation through Walkie-talkie is an example of Full-Duplex

b)

The communication between sender and receiver can occur simultaneously

c)

Conversation through telephone is an example of Full-Duplex

d)

The communication between sender and receiver can occur in both director but only one at a time

4.

What is a digital signal?

a)

Continuous wave form in nature and represented by electro-magnetic waves

b)

Representation of sequence of voltage pulses (used in computer systems)

c)

Any continuous signal for which the time-varying feature of the signal is a representation of some other time-varying quantity

d)

Random disturbance or fluctuation

5.

What is line coding?

a)

Process of converting analog data to digital data

b)

Process of converting digital data into digital signal

c)

Process of converting analog signal into digital signal

d)

Process of converting analog data into analog signal

6.

Routing happening in which layer of TCP/IP Stack?

a)

Application Layer

b)

Transport Layer

c)

Internet Layer

d)

Physical Layer

7.

In which layer frames refers in OSI model?

a)

Session Layer

b)

Data Link Layer

c)

Application Layer

d)

Network Layer

8.

What is Multiplexing?

a)

Converting Analog Signal to Digital Signal

b)

Converting Digital Signal to Analog Signal

c)

Combining Multiple signals together and transmit

d)

All statements are incorrect

9.

WDM (Wavelength Division Multiplexing) used in?

a)

Fiber optic

b)

Electro-magnetic

c)

Wireless

d)

Bluetooth

10.

Choose three phases in Circuit Switching

a)

Connection setup

b)

Data transfer

c)

Connection tear down

d)

Re-transmit

e)

Error checking