Layer 1 (Physical)

Question 1

Physical Layer

Answer 1

Where transmission of bits across the network occurs and includes physical and electrical network characteristics.

Question 2

Transition Modulation

Answer 2

If it changes during the clock cycle, then a 1 is represented (otherwise, a o is represented).

Question 3

Asynchronous

Answer 3

Uses start and stop bits to indicate when transmissions occur from the sender to the receiver.

Question 4

Synchronous

Answer 4

Uses a reference clock to coordinate the transmissions by both sender and receiver.

Question 5

Broadband

Answer 5

Divides bandwidth into separate channels.

Question 6

Baseband

Answer 6

Uses all available frequencies on a medium (cable) to transmit data.

Question 7

Time-Division Mutiplexing (TDM)

Answer 7

Each session takes a turn, using time slots, to share the medium between all users.

Question 8

Statistical Time-Division Mutiplexing (StatTDM)

Answer 8

Dynamically allocates the time slots on an as-needed basiis.