HND-CN01

What are the components of Data Communication?

• Sender

• Client

• Receiver

• Medium

• Bandwidth

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

• 128

• 64

• 256

• 32

The term "Full Duplex" correctly described as

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

• The communication between sender and receiver can occur simultaneously

• Conversation through telephone is an example of Full-Duplex

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

What is a digital signal?

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

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

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

• Random disturbance or fluctuation

What is line coding?

• Process of converting analog data to digital data

• Process of converting digital data into digital signal

• Process of converting analog signal into digital signal

• Process of converting analog data into analog signal

Routing happening in which layer of TCP/IP Stack?

• Application Layer

• Transport Layer

• Internet Layer

• Physical Layer

In which layer frames refers in OSI model?

• Session Layer

• Data Link Layer

• Application Layer

• Network Layer

What is Multiplexing?

• Converting Analog Signal to Digital Signal

• Converting Digital Signal to Analog Signal

• Combining Multiple signals together and transmit

• All statements are incorrect

WDM (Wavelength Division Multiplexing) used in?

• Fiber optic

• Electro-magnetic

• Wireless

• Bluetooth

Choose three phases in Circuit Switching

• Connection setup

• Data transfer

• Connection tear down

• Re-transmit

• Error checking