CNT 3004  Ch. 10 Homework
1.
Which error detection method uses one's complement arithmetic?
Checksum
2.
Which error detection method consists of just one redundant bit per data unit?
SIMPLE PARITY CHECK
3.
In cyclic redundancy checking, what is the CRC?
THE REMAINDER
4.
In cyclic redundancy checking, the divisor is
ONE BIT MORE THAN
the CRC.
5.
A burst error means that two or more bits in the data unit have changed.
BURST
6.
In
FORWARD
error correction, the receiver corrects errors without requesting retransmission.
7.
In
RETRANSMISSION
error correction, the receiver asks the sender to send the data again.
8.
We can divide coding schemes into two broad categories:
BLOCK
and
CONVOLUTION
coding.
9.
In modulo2 arithmetic,
ADDITION AND SUBTRACTION
give the same results.
10. In modulo2 arithmetic, we use the
XOR
operation for both addition and subtraction.
11. In BLOCK coding, we divide our message into blocks, each of
k
bits, called
DATAWORDS
12. We add
r
redundant bits to each block to make the length
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 Spring '10
 K
 Coding theory, Hamming Code, Error detection and correction, Hamming distance, Cyclic code

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