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41. Which of the following code is also known as reflected code?
a. Excess-3 code
b. Gray code
c. Straight binary code
d. Error code
Discuss
Answer: (b).Gray code

42. EXOR is the __________ of the binary number.
a. MSB to the next bit
b. LSB to the next bit
c. MSB of the previous bit
d. LSB of the previous bit
Discuss
Answer: (a).MSB to the next bit

43. ASCII code is required for representing more than ________ characters.
a. 16
b. 8
c. 64
d. 32
Discuss
Answer: (c).64

44. Why the 8-bit (MSB) is added in EBCDIC?
a. For carriage return
b. For making the total number of 1’s odd
c. For line feed
d. For parity
Discuss
Answer: (d).For parity

45. What is the 8-bit EBCDIC representation of alphabet M?
a. 1100100
b. 11001001
c. 11010100
d. 010001
Discuss
Answer: (c).11010100

46. Which of the following is not correct regarding EBCDIC?
a. It is used to represent more than 64 characters.
b. It is a 7-bit code.
c. A maximum of 128 different characters can be represented by this code.
d. None of the above
Discuss
Answer: (b).It is a 7-bit code.

47. The MSB of _____________ is same as the MSB of the corresponding Gray code.
a. Alphanumeric code
b. Excess-3 code
c. Binary code
d. Gray code
Discuss
Answer: (c).Binary code

48. How can you represent (08)10 in BCD?
a. 0000 1000
b. 0010 0011
c. 1001 0010 0001
d. 1001 0010
Discuss
Answer: (a).0000 1000

49. In N-bits, you can represent the signed integers ranging from ___________.
a. 2 ^(N-1) to 2^ (N+1)
b. -2^(N-1) to 2^(N-1) -1
c. 2 ^(N+1) to 2^(N-1) +1
d. 2^ (N) to 2^ (N+1)
Discuss
Answer: (b).-2^(N-1) to 2^(N-1) -1

50. How -5 is represented in hex format in 2’s complement in 8-bits?
a. (FB)16
b. (7F)16
c. (FF)16
d. (FA)16
Discuss
Answer: (a).(FB)16

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