Multiple choice

1. (TCO 1) Block encoding takes several _____ and sends it out as a new code word. 

bytes

bits

wires

messages

2. (TCO 1) 1000 Mbps Ethernet uses _____ block encoding. 

4B/5B

differential

4D-PAM-5

PAM-5

3. (TCO 1) In NRZ, line encoding is a binary code where 1s are represented by _____ . 

absence of a signal

presence or level of a signal

a circular, sinusoidal signal

line block coding

4. (TCO 1) Digital signals are _____. 

discrete quantities

continuously varying quantities

based on block signaling

based on transmission errors