Q2 EXAM Flashcards

1
Q

What is the base of the octal number system?

A

8

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2
Q

All of the following are characteristics of all number systems EXCEPT?

A. Digits are consecutive.

B. One is always the first digit.

C. The base number is never a digit.

D. The number of digits is equal to the size of the base.

A

B

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3
Q

What is the decimal value of these binary digits 11010`2?

A

D 26

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4
Q

What is the binary is the binary value of this hexadecimal 5D5?

A. 0101 1101 0101

B. 0101 1111 0101

C. 0011 1011 0011

D. 0011 1100 0011

A

A

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5
Q

What is the octal value of the decimal number 100?

A. 31

B. 121

C. 144

D. 441

A

C

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6
Q

Perform the binary addition: 1111 + 1001.

A. 11010

B. 11000

D. 10100

D. 10010

A

B

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7
Q

Identify the binary representation for the decimal number 89 by breaking it down into its place values.
A.00110000

B. 11010101

C. 11101010

D. 01011001

A

D

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8
Q

Consider a 4-bit binary number, and its I’s complement is 10011101. What is the original binary number?
A. 01100111

B. 01100101

C. 01100010
D. 01100110

A

C. 01100010

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9
Q

If logic gate receives inputs A-0 and B-0, what will be the output for an XNOR gate?
A. 0

B. 1

C. Undefined

D. Error

A

B

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10
Q

Which of the following circuits is an example of a basic gate?

A. XNOR gate

B. NOR gate

C. OR gate

D.NAND gate

A

C

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11
Q

Compare the binary numbers 01111 and 10011. Which is greater?

A 01111

B. 10011

C. They are equal

D. Cannot be determined

A

D

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12
Q

If the decimal number-12 is represented in 4-bit signed 2’s complement form, what binary value would you get?

A. 0101

B. 1011

C/1101

D.1100

A

C

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13
Q

Convert the following BCD to binary and binary to BCD.

Given the BCD representation 1101 1110, what is the equivalent binary number?

A. 0101 0010 0010

B. 1101 0010 0010

C. 0101 1010 0010

D. 0101 0011 0011

A

A

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14
Q

Given the binary number 10011110, perform the conversion to 8421 BCD.

A. 0010-0001 1000

B. 1001 1001 0101

C. 0011 0010 1000

D. 0001 0101 1000

A

D

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15
Q

Which statement is correct about OR?

A. OR gate produces a 1 only if both inputs are 1. B. OR gate produces a 0 only if both inputs are 1.
C. OR gate produces a 0 only if both inputs are 0.
D. All of these.

A

C

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