Network Technology - Chapter 3 (Physical layer)

What do you understand by Network Interface Card (NIC)?

Select 4 from the options.

• It is a hardware component that connects a device to the network

• It is a card that stores interface data related to the network

• Some devices can have more than 1 NIC

• Some devices may have just one NIC, while others may have multiple NICs

• Can support wired and/or wireless connections

What are TRUE about the Physical Layer?

Select 3 from the options.

• Accepts frame from the Data Link layer and encodes it as a series of signals to transmit

• Transports bits across the network media

• It is the 2nd layer in the OSI reference model

• It is the 1st layer in the OSI reference model

The Physical layer standards are implemented in hardware and are governed by many organizations such as ...

Select more than 1 from the options.

• ISO

• EIA/TIA

• ITU-T

• ANSI

• IEEE

TCP/IP standards are implemented in the software and governed by

• IEEE
• IANA
• IETF
• ISI

Answer explanation

TCP/IP standards are implemented in the software and governed by IETF

Physical Layer standards address which 3 functional areas?

• Encoding

• Signalling

• Data

• Physical Components

____​ converts the stream of bits into a format that can be recognized by the next device in the network path.

• Encoding
• Encapsulation
• De-Encapsulation
• Decoding

Select 3 examples of encoding methods

• Manchester encoding

• 8B/10B

• 4B/5B

• 11B/12B

Signaling method is how bit values, “1” and “0” are represented on the medium. It varies based on the type of medium used. Which are the mediums?

Select 3 from the options.

• Electrical Signal

• Light Signal

• Microwaves

• Ultraviolet

​ ____ measures the amount of data that can flow from one place to another in a given amount of time. i.e. bits/sec

• Bandwidth
• Latency
• Throughput
• Goodput

Match accordingly

A -> refers to amount of time (include delays) for data to travel from 1 point to another

B -> refers to the no. of bits transferred over a given period of time

C -> refers to the usable data transferred over given period of time

D -> measures the amount of data that can flow from one place to another in a given amount of time

• A -> Latency

  B -> Throughput

  C -> Goodput

  D -> Bandwidth

• A -> Throughput

  B -> Latency

  C -> Goodput

  D -> Bandwidth

• A -> Throughput

  B -> Latency

  C -> Bandwidth

  D -> Goodput

• A -> Goodput

  B -> Throughput

  C -> Latency

  D -> Bandwidth

• A -> Latency

  B -> Throughput

  C -> Bandwidth

  D ->Goodput