Exam 6: Errors, Error Detection, and Error Control

The most basic error-detection techniques are parity checks, which are used with ____ connections.

White noise is also called thermal noise or ____ noise.

____________________ is the continuous loss of a signal's strength as it travels though a medium.

Twisted pair Category 5e/6 cable should not be longer than the recommended 100-meter (300-foot) distance when it's transmitting at ____ Mbps.

____ for error control is becoming a mode of operation for some modern wide area network transmission techniques.

Noise is a problem for both analog and digital signals.

In a stop-and-wait error control system, a receiver may acknowledge multiple packets with a single ACK.

Telephone signal crosstalk was a more common problem before telephone companies used fiber-optic cables and other well-shielded wires.

List and briefly explain some error-prevention techniques.

____________________ is a noncontinuous noise and one of the most difficult errors to detect, because it can occur randomly.

CRC-____ is found in Ethernet LANs.

The ____________________ of a code is the smallest number of bits by which character codes differ.

If a receiver has just received one packet of data with bytes numbered 600 to 700, it will respond immediately with ____.

How does frame relay control errors?

How does the cyclic redundancy checksum work?

____ is a flow control scheme that allows a station to transmit a number of data packets at one time before receiving some form of acknowledgment.

White noise is dependent on the temperature of the medium.

With ____________________ parity, the 0 or 1 added to the string produces an odd number of binary 1s.

With the sliding window protocol, a station that had a maximum window size of 7 could transmit only ____ data packets at one time before it had to stop and wait for an acknowledgment.

If jitter becomes too great, correcting it can require the transmitting devices to speed up their transmission rates.