Exam 6: Errors, Error Detection, and Error Control

____ 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.

NAK represents a positive acknowledgment.

A(n)____________________ code is a specially designed code in which special check bits have been added to data bits such that,if an error occurs during transmission,the receiver may be able to correct the error using the included check and data bits.

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

How does simple parity work?

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

Echo error rarely occurs at junctions where wires are connected.

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

If a receiver correctly receives packets 2,3,and 4,it will respond with a(an)____ .

____________________ is a relatively continuous type of noise and is much like the static you hear when a radio is being tuned between two stations.

Impulse noise is also known as ____.

The simplest error-detection technique is ____________________ parity.

Noise is a problem for both analog and digital signals.

A(n)_________________________ is an industry-approved bit string that is used to create the cyclic checksum remainder.

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

TCP performs error detection at the end points of the connection.

How does the cyclic redundancy checksum work?

Sliding window error control is based on the ____________________ protocol.

Returning a message was one of the first error-control techniques developed.

Longitudinal parity is sometimes called longitudinal redundancy check or ____ parity.