Exam 6: Errors, Error Detection, and Error Control

The ____________________ method typically adds 8 to 32 check bits to potentially large data packets and yields an error detection capability approaching 100 percent.

Once an error in the received data transmission stream is detected,the action that the receiver takes is called ____________________.

To minimize the effect of echo,a device called a(n)____ can be attached to a line.

White noise is also called thermal noise or ____ noise.

An arithmetic checksum _______ the individual characters to be transmitted.

CRC-____ is found in Ethernet LANs.

If the impulse spike interferes with an analog signal,removing it without affecting the original signal is extremely easy.

How does frame relay control errors?

____ is probably the most common form of error control.

____________________ is a process that keeps a transmitter from sending too much data to a receiver.

____________________ parity tries to solve the main weakness of simple parity-that all even numbers of errors are not detected.

When a digital signal is being transmitted,the rises and falls of the signal can start to shift,or become blurry,and thus produce ____________________.

How does longitudinal parity work?

In a sliding-winow error control system,a receiver may acknowledge multiple packets with a single ACK.

Because white noise is relatively continuous,it can be reduced significantly but never completely eliminated.