Question 4 (2 points) Consider the C statements below. Assume x has been assigne

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Question 4 (2 points)

Consider the C statements below. Assume x has been assigned a value.

Which one of the following best describes the value computed for variable y?

Question 4 options:

y contains the most significant byte of x complemented, with the rest of the bits unchanged

y contains the most significant byte of x unchanged, with the rest of the bits 0

y contains the most significant byte of x unchanged, with the rest of the bits 1

y contains the most significant byte of x zeroed, with the rest of the bits unchanged

none of these

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Question 5 (2 points)

Consider the C statements below. Assume x has been assigned a value.

Which one of the following best describes the value computed for variable y?

Question 5 options:

y contains the least significant byte of x, with all other bits set to 0

y has all bits set to 1

y contains the least significant byte of x, with all other bits set to 1

y has all but the least significant byte zeroed, with the least significant byte complemented

none of these

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Question 6 (2 points)

Determine x, as a logical value, after the statements below. See the hint for a note about 'logical'.

Question 6 options:

logical means we could use x in an if statement: if ( x )   

so would x be considered True or False?

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Question 7 (3 points)

Determine x, as a logical value, after the statements below. See the hint for a note about 'logical'.

Question 7 options:

logical means we could use x in an if statement: if ( x )   

so would x be considered True or False?

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Question 8 (2 points)

Suppose the variable x has the value shown. Determine the result of the indicated left shiftoperation(s) as a single byte in hexadecimal.

Question 8 options:

0x8A

0xD6

none of these

0x62

0x14

suggestion: convert to binary, do the shift, convert back to hex

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Question 9 (2 points)

Suppose the variable x has the value shown. Determine the result of the indicated right logical shift operation(s) as a single byte in hexadecimal.

Question 9 options:

none of these

0xD6

0xD4

0xE5

0x3D

suggestion: convert to binary, do the shift, convert back to hex

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Question 10 (2 points)

Suppose the variable x has the value shown. Determine the result of the indicated right arithmetic shift operation(s) as a single byte in hexadecimal.

Question 10 options:

0xFE

0x32

0xA8

0x65

none of these

suggestion: convert to binary, do the shift, convert back to hex

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Question 11 (2 points)

The largest unsigned value that may be represented using 6 bits is 63.

Question 11 options:

y contains the most significant byte of x complemented, with the rest of the bits unchanged

y contains the most significant byte of x unchanged, with the rest of the bits 0

y contains the most significant byte of x unchanged, with the rest of the bits 1

y contains the most significant byte of x zeroed, with the rest of the bits unchanged

none of these

Explanation / Answer

4)y contains the most significant byte of x complemented, with the rest of the bits unchanged

5) y contains the least significant byte of x, with all other bits set to 0

6) !a = 0
FALSE

7)

Answer: True

8) 0xC5 = 1100 0101 << 2 = 0001 0100 = 0x14
Answer: 0x14



9) 0xF6 = 1111 0110 >> 2 = 0011 1101 = 0x3D
Answer: 0x3D

10)  0xCA = 1100 1010 >> 2 = 0011 0010 = 0x32
Answer: 0x32

11) The largest unsigned value that may be represented using 6 bits is 63.

26 - 1 = 63

TRUE



Thanks, PLEASE UPVOTE

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