A 100101101000
B 010001101001
C 100001101001
D 100101100100

A 116
B -12
C 11
D 128

# Q3: 3428 is the decimal value for which of the following binary-coded decimal (BCD) groupings?

A 11010001001000
B 11010000101000
C 011010010000010
D 110100001101010

A 00001011
B 00001100
C 00010001
D 00010010

# Q5: Convert 59.7210 to BCD.

A 111011
B 01011001.01110010
C 1110.11
D 0101100101110010

A 110011
B 100001
C 110100
D 100100

A 463
B 4033
C 479
D 4049

A DD63A16
B 1D63A16
C 1D33A16
D 1D63116

A 100010
B 100101
C 110101
D 100100

A 11000001
B 1000111
C 111000100
D 111000001

A 11000001
B 1000111
C 111000100
D 111000001

A 8003
B 803
C 1003
D 103

A 0110
B 0111
C 0011
D 1100

A 10
B 31
C 25
D 32

A 101110112
B 110111012
C 101111012
D 101111002

# Q16: The octal numbering system:

B groups binary numbers in groups of 4
C saves time
D simplifies tasks and saves time

A 10111100
B 0111000
C 1100011
D 1111000

# Q18: How many BCD code bits and how many straight binary bits would be required to represent the decimal number 643?

A 12 BCD, 12 binary
B 12 BCD, 10 binary
C 12 BCD, 9 binary
D 16 BCD, 9 binary

A 1011010000012
B 0001010010112
C 0001010011012
D 1101010000012

A 011100100001
B 111010001
C 001010111
D 000100100111

A 16
B 8
C 7
D 4

A 3.7
B 37
C 10
D 370

A 8F16
B CE16
C DF16
D CF16

A 1
B 2
C 7
D 8

# Q25: When using the repeated division by 2 method of converting from decimal to binary, one must write the first remainder as the:

A MSB
B MSB, provided the following sequence of remainders are written in descending order until the final remainder is achieved.
C LSB
D LSB, provided the final remainder is used to replace the original LSB, which is then moved to the MSB position.

A 2210
B 1610
C 1010
D 2010

A 121035
B CA35
C 53AC1
D 530121

A 216.4
B 985
C 3D9
D 1123

A 111100111010
B 111100111110
C 000000111010
D 000011000100

A 90.125
B 9.125
C 125
D 12.5

A 7D16
B D716
C 7C16
D C716

A 343
B 001101000111
C 010100100111
D 011100100101

A EE216
B FF216
C 2FE16
D FD216

# Q34: Select one of the following statements that best describes the parity method of error detection.

A Parity checking is best suited for detecting single-bit errors in transmitted codes.
B Parity checking is not suitable for detecting single-bit errors in transmitted codes.
C Parity checking is capable of detecting and correcting errors in transmitted codes.
D Parity checking is best suited for detecting double-bit errors that occur during the transmission of codes from one location to another.

A 1101112
B 1111102
C 1111002
D 1001112

A eight
B sixteen.
C ten
D two.

A 71
B 17
C 92
D 29

A 1728
B 2728
C 1748
D 2748

A 201
B 2001
C 20
D 210

A 0011
B 1010
C 1100
D 1001

A 638
B 368
C 478
D 748

A 01100010
B 10011110
C 01100001
D 01100011

A 212
B 197
C 165
D 181

A 101110012
B 101110112
C 100111002
D 110010012

A 12
B 206
C 127
D 66

# Q46: What is the difference between binary coding and binary-coded decimal?

A BCD is pure binary.
B Binary coding has a decimal format.
C BCD has no decimal format.
D Binary coding is pure binary.

A 10100101
B 00100101
C 11011000
D 11010001

A 1111011
B 1111001
C 0111111
D 0011111

A 916
B 1116
C 10116

# Q50: An informational signal that makes use of binary digits is considered to be:

A solid state
B digital
C analog
D non-oscillating

A 5
B 50
C 250
D infinite

A 1100 1011 1000
B 0011 0100 0111
C 0011 0100 0001
D 1100 1011 0110

A 154
B 155
C 153
D 157

A 11110
B 10001
C 10010
D 1111000

A 515628
B 565778
C 656278
D 565728

# Q56: The binary-coded decimal (BCD) system can be used to represent each of the 10 decimal digits as a(n):

A 4-bit binary code
B 8-bit binary code
C 16-bit binary code
D ASCII code

A 539
B 2551
C 569
D 1552

A 110000001011
B 110000001001
C 110000001100
D 110100001011

A 1538
B 3518
C 2538
D 3528

A 711
B 2C7
C 811
D 1C9

A A416
B B416
C 4A16
D 4B16

A 10000111.11
B 11010011.01
C 00111100.00
D 10010111.11

A 000100102
B 000100112
C 001000112
D 001000102

A 1348
B 4318
C 3318
D 1338

A 0011
B 1101
C 0101
D 1001

A 3
B 1
C 7
D 14

# Q67: Convert 8B3F16 to binary.

A 35647
B 011010
C 1011001111100011
D 1000101100111111

A 20 MB
B 10 MB
C 1 MB
D 580 MB

A 1 through 6
B 9 through 14
C 10 through 15
D 11 through 17

A 1011
B 1010
C 0100
D 1101

A 011100111
B 101010111
C 343
D 111010101

# Q72: When using even parity, where is the parity bit placed?

A Before the MSB
B After the LSB
C In the parity word
D After the odd parity bit

A 11100110
B 00011001
C 00011000
D 00011010

A 51
B 82
C 57
D 15

A 00010110
B 00010000
C 00010010
D 11100000

A Bit
B Byte
C Nibble
D Word

A MSB
B frequency
C LSB
D duty cycle

# Q78: Alphanumeric codes should include as a minimum:

A the capacity to represent the alphabet upper- and lowercase characters and the decimal numbers in a straight binary format.
B the capacity to code all possible decimal numbers in a direct octal representation of BCD codes.
C the alphabet upper- and lowercase letters, the decimal digits, the seven punctuation marks, and other characters or symbols.
D the ability to represent decimal numbers greater than 12810 in a straight binary format.

A byte
B nibble
C grouping
D instruction

A 100
B 111
C 001
D 110

A 191
B 1911
C 19
D 19111

A 11
B 35
C 15
D 10

A 327.375
B 12.166
C 1388
D 1476

A decimal
B octal
C binary

A True
B False

A 4E
B 78
C 76
D 116

A Gray
B ASCII
C Parity
D EBCDIC

A 64
B 28
C 16
D 8

A 7
B 2
C 3
D 100

A 11001101
B 11010101
C 01111001
D 11100011

A STUDYHARD
B STUDY HARD
C stydyhard
D study hard

A 01010010
B 01000000
C 00110110
D 01001000

A 74
B 60
C 22
D 62

A 11100001
B 1100001
C 01100001
D 01110101

A 6545218
B 5565618
C 1566568
D 1565668

A 01010101
B 00110101
C 00110010
D 00110001

# Q97: Which of the following is the primary advantage of using the BCD code instead of straight binary coding?

A Fewer bits are required to represent a decimal number with the BCD code.
B The relative ease of converting to and from decimal.
C BCD codes are easily converted to hexadecimal codes.
D BCD codes are easily converted to straight binary codes.

A 216.4
B 985
C 3D9
D 1841

A 0010001002
B 1000000012
C 00101002
D 10000012

# Q100: Convert the binary number 1011010 to hexadecimal.

A 5B
B 5F
C 5A
D 5C

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