Layer 1

Question 1

Manchester Encoding

Answer 1

A method of identifying the beginning and end of a bit signal when it is transmitted on the network.

Used in Ethernet networks.

Question 2

Physical Layer Technologies

Answer 2

Connection type, Physical topology, Type of signal, Type of bit synchronization

Question 3

Physical Layer Hardware

Answer 3

Network Interface Cards
Network Cables
Hubs
Repeaters
Modems
ISDN adapters

Question 4

Transmission Signaling Technologoy

Answer 4

Baseband and Broadband

Question 5

Baseband

Answer 5

A technology that permits a single transmission of data at a fixed frequency on a wire at any given moment.

Question 6

Broadband

Answer 6

A type of transmission that can use a single wire to transmit multiple streams of data simultaneously using different frequencies.

Question 7

Hub

Answer 7

A Physical layer device that connects computers and other devices to make a network. A hub receives a signal from one device and broadcasts it out all other ports.

Question 8

Repeater

Answer 8

A network device similar to a hub but with only two or three ports, that can be used to extend the transmission distance of a network.