41. What is the minimum number of wires required for sending data over a serial communications links?

A. 2
B. 1
C. 4
D. 3
E. None of the above

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42. In cyclic redundancy checking, the divisor is _____ the CRC.

A. the same size as
B. one bit less than
C. one bit more than
D. two bits more

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43. Which command-line tool is included with every Microsoft TCP/IP client?

A. DHCP
B. WINS
C. PING
D. WINIPCFG
E. None of the above

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44. If odd parity is used for ASCII error detection, the number of 0s per eight-bit symbol is _____.

A. even
B. odd
C. indeterminate
D. 42

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45. An error-detecting code inserted as a field in a block of data to be transmitted is known as

A. Frame check sequence
B. Error detecting code
C. Checksum
D. flow control

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