Quiz

Question 1 (1 point)

In a 6-bit two's complement system, A=010110, B=001100, when perform X=A+B, which of following statement is true?

Question 1 options:

	a. X is 110001
	b. X is 100010
	c. X is 110001
	d. X is 010001
	e. None of the above

Question 2 (1 point)

Using a 6-bit cell to store integers in 2's complement, NEG 1 0 0 1 1 0 = ______ ?

Question 2 options:

	a. 0 1 1 0 1 0
	b. 0 1 1 0 0 1
	c. 0 1 1 0 1 1
	d. 1 0 0 1 1 0
	e. 1 1 1 0 0 1

Question 3 (1 point)

Using an 8-bit cell to store unsigned integers, what is the largest integer that can be stored?

Question 3 options:

	a. 255
	b. 127
	c. 63
	d. 256
	e. 128

Question 4 (1 point)

Using a 6-bit cell to store integers in 2's complement, what is the decimal number that stored in the cell as 010110?

Question 4 options:

	a. 28
	b. 18
	c. 26
	d. 22
	e. None of the above

Question 5 (1 point)

What is the range of integers that can be represented using 3bits 2's complement?

Question 5 options:

	a. -4 to 3
	b. -3 to 3
	c. 0 to 7
	d. 0 to 15
	e. -4 to 4

Question 6 (1 point)

Using an 8-bit cell to store integers in 2's complement, what is the largest positive integer that can be stored?

Question 6 options:

	a. 255
	b. 127
	c. 63
	d. 256
	e. 128

Question 7 (1 point)

Using a 6-bit cell to store integers in 2's complement, what is the decimal number that stored in the cell as 100000?

Question 7 options:

	a. -0
	b. 0
	c. 32
	d. -32

Question 8 (1 point)

What is the range of integers that can be represented using 3bits unsigned binary representation?

Question 8 options:

	a. -4 to 3
	b. -3 to 3
	c. 0 to 7
	d. 0 to 15
	e. -4 to 4

Question 9 (1 point)

Using a 6-bit cell to store integers in 2's complement, NOT 1 0 0 1 1 0 = ______?

Question 9 options:

	a. 0 1 1 0 1 0
	b. 0 1 1 0 0 1
	c. 0 1 1 0 1 1
	d. 1 0 0 1 1 0
	e. 1 1 1 0 0 1

Question 10 (1 point)

Using a 6-bit cell to store integers in 2's complement, what is the decimal number that stored in the cell as 011111?

Question 10 options:

	a. -15
	b. -16
	c. 0
	d. 16
	e 31

Question 11 (1 point)

Using a 6-bit cell to store integers in 2's complement, what is the decimal number that stored in the cell as 101010?

Question 11 options:

	a. 42
	b. 22
	c. -22
	d. -42
	e. None of the above

Question 12 (1 point)

Using a 4-bit cell to store integers in 2's complement, what is the largest positive integer that can be stored?

Question 12 options:

	a. 15
	b. 32
	c. 63
	d. 31
	e. 7

Question 13 (1 point)

When two binary numbers are added, if the sum of the left most column (called the most significant bit) does not produce a carry, then the carry bit C is set to _________.

Question 13 options:

	The C bit detects overflow for unsigned integer only. C bit alone cannot detect overflow for unsigned integers.
	a. 0
	b. 1
	c. cannot be determined
	d. either 1 or 0

Question 14 (1 point)

In a 6-bit two's complement system, A=010110, when perform X= - A, which of following statements are true?

Question 14 options:

	a. X is 101001
	b. N=1, Z=1
	c. X is 101010
	d. N=1, Z=0
	e. N=9, Z=1
	e. None of the above

Question 15 (1 point)

When two binary numbers are added, if the sum of the left most column (called the most significant bit) produces a carry, then the carry bit C is set to _________. The C bit detects overflow for unsigned integer only. C bit alone cannot detect overflow for unsigned integers.

Question 15 options:

	a. 0
	b. 1
	c. cannot be determined
	d. either 1 or 0

Question 16 (1 point)

In a 6-bit two's complement system, A=010110, B=001100, when perform A+B, which of following statements are true?

Question 16 options:

	a. The carry bit C is 0
	b. The carry bit C is 1
	c. The overflow bit V is 1
	d. The overflow bit V is 0

Question 17 (1 point)

Using a 6-bit cell to store integers in 2's complement, what will be stored for -5?

Question 17 options:

	a. 111011
	b. 111001
	c. 000101
	d. 100101
	e. None of the above

Question 18 (1 point)

Using a 4-bit cell to store unsigned integers, what is the largest integer that can be stored?

Question 18 options:

	a. 15
	b. 32
	c. 63
	d. 31
	e. 7

Question 19 (1 point)

CPU contains a special bit called the overflow bit , denoted by V. When CPU adds two binary integers, if their sum is out of range when interpreted in 2's complement representation, then V is set to _____, otherwise V is set to ____.

Question 19 options:

	a. 0 : 0
	b. 1 : 1
	c. 0 : 1
	d. 1 : 0

Question 20 (1 point)

Using a 6-bit cell to store integers in 2's complement, what will be stored for decimal number -27?

Question 20 options:

	a. 100101
	b. 011011
	c. 111011
	d. 000101
	e. None of the above

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