Number System Questions

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11.

Conversion of binary number 1010101000010111 to hexadecimal number is

A

D8F916

B

A8B916

C

AA1716

D

D9F816

E

None of the above

Correct Answer: C

1010101000010111 binary = AA1716 hexadecimal

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12.

The number of records contained within a block of data on magnetic tape is defined by the

A

block definition

B

record contain clause

C

blocking factor

D

record per block factor

E

None of the above

Correct Answer: C

None.

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13.

The binary equivalent of the Octal number 13.54 is

A

1011.1011

B

1101.111

C

1001.111

D

All of the above

E

None of the above

Correct Answer: A

None.

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14.

A 'number crunching' computer is one that can handle

A

large spreadsheets

B

large alphanumeric data

C

large volume of numbers

D

only numbers

E

None of the above

Correct Answer: C

None.

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15.

Conversion of hexadecimal number 1D7F16 to a decimal number is

A

755110

B

877110

C

555710

D

778110

E

None of the above

Correct Answer: A

755110

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16.

The 0 and 1 in the binary numbering system are called binary digits or _____

A

bytes

B

kilobytes

C

decimal bytes

D

bits

E

nibbles

Correct Answer: D

None.

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17.

The computer translates the condition of each switch to a number. What number is represented by the OFF state?

A

-7

B

-3.75

C

1

E

-22

Correct Answer: D

None.

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18.

The binary equivalent of the Hexadecimal number 7BD is

A

11110111101

B

111010000000

C

101110000000

D

All of the above

E

None of the above

Correct Answer: A

None.

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19.

What digits are representative of all binary numbers?

B

1

C

Both A and B

D

3

E

None of the above

Correct Answer: C

None.

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20.

The computer translates the condition of each switch to a number. What number is represented by the ON state?

A

7

B

3.75

C

1

E

22

Correct Answer: C

None.

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