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Number Systems and Codes problems

1. Hexadecimal 12 is ________in binary.
Options
A. 00010111
B. 00010100
C. 00010010
D. 00100001

Correct Answer: 00010010

2. Binary 10111111 is ________ in hexadecimal.
Options
A. BF₁₆
B. FB₁₆
C. 277₁₆
D. 10111111

Correct Answer: BF₁₆

3. A typical CD-ROM can store ________ of digital data.
Options
A. 90 minutes
B. analog portions
C. 650 megabytes
D. octal bytes

Correct Answer: 650 megabytes

4. Odd-parity 9E₁₆ is ________ decimal.
Options
A. 30
B. 158
C. 78
D. Nothing. Parity does not check.

Correct Answer: 30

5. The column weight of the "1" in the hexadecimal number 1AB is ________.
Options
A. 64
B. 256
C. 512
D. 1024

Correct Answer: 256

6. In binary, the decimal number 93 converts to ________ digits.
Options
A. seven
B. eight
C. 11
D. five

Correct Answer: seven

7. Even-parity 01101000 binary is ________in hexadecimal.
Options
A. C8₁₆
B. 68₁₆
C. D0₁₆
D. Nothing. Parity does not check.

Correct Answer: Nothing. Parity does not check.

8. The 2's complement of the binary number 1000 is ________.
Options
A. 111
B. 0110
C. 1110
D. 1000

Correct Answer: 1000

9. Decimal 2875 is ________ bytes in binary.
Options
A. 2
B. 3
C. 4
D. 5

Correct Answer: 2

10. Decimal 12 is ________ in hexadecimal.
Options
A. 12₁₆
B. C₁₆
C. A2₁₆
D. A₁₆

Correct Answer: C₁₆

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