Digital Quiz - Multiple Choice

QUESTION 1

1. Which answer is an example of a product-of-sum (POS) expression?

		X = ABC
		X = AB + CD
		X = (A + B)(C + D)
		X = A + B + C

5 points   

QUESTION 2

1. Which Boolean equation results from this Karnaugh map?

5 points   

QUESTION 3

1. Which Boolean equation results from this Karnaugh Map?

5 points   

QUESTION 4

1. Anything ANDed with a 0 is equal to

		0.
		1.
		itself.
		its complement.

2 points   

QUESTION 5

1. To symbolize the inversion of the output signal, the logic gate has a bubble on the output line. Which of the following is the inversion of AND gate.

3 points   

QUESTION 6

1. Solve this binary problem: 11001111 -01110000

		01101111
		01111111
		01011111
		10001111

5 points   

QUESTION 7

1. Solve this binary problem: 00010111 + 00101001

		01000000
		00101111
		01100000
		00110011

5 points   

QUESTION 8

1. Solve this binary problem: 101101 x 1011

		1011011112
		1111111112
		1101011112
		1111011112

5 points   

QUESTION 9

1. Solve this binary problem:1110÷0010

		1010
		1001
		0111
		0101

5 points   

QUESTION 10

1. The binary addition of 0 + 1 =

		sum = 1 carry = 1
		sum = 1 carry = 0
		sum = 0 carry = 0
		sum = 0 carry = 1

5 points   

QUESTION 11

1. What is the two's complement of 01001110?

		10110010
		10011110
		00111110
		10111111

5 points   

QUESTION 12

1. What is the hexadecimal symbol for decimal 10?

		H
		C
		B
		A

5 points   

QUESTION 13

1. A four-bit adder can perform

		logical AND.
		addition.
		subtraction.
		all of the above

5 points   

QUESTION 14

1. A combinational logic circuit that converts binary information from n inputs to a maximum of 2n unique outputs is known as a

		Multiplexer
		Decoder
		Comparator
		Demultiplexer

5 points   

QUESTION 15

1. Which device is used in the design of computer memory address selection hardware?

		multiplexer
		encoder
		demultiplexer
		decoder

5 points   

QUESTION 16

1. The data storage device which can be constructed using two NAND gates or two NOR gates is the

		J-K flip-flop.
		multiplexer.
		S-R flip-flop.
		encoder.

5 points   

QUESTION 17

1. The flip-flop is the basic circuit used in

		arithmetic circuits.
		sequential logic circuits.
		combinational logic circuits.
		all of the above

5 points   

QUESTION 18

1. Write a program in VHDL for the expression Y=AB'C + A'B'C + A B'C' + A'BC

Path: p Words:0

10 points   

QUESTION 19

1. Write a program in VHDL for the following logic circuit:

For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). Path: p Words:0