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Question 8

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A floating point overflow is represented in the IEEE 754 standard by

Select one:

a. a normalized number

b. a denormalized number

c. positive or negative infinity

d. not a number

e. zero

Question 9

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Infinity minus infinity is represented in the IEEE 754 standard by

Select one:

a. a normalized number

b. not a number

c. a denormalized number

d. zero

e. positive or negative infinity

Question 10

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Interpret the following hex as an IEEE 754 32-bit floating point value. What is this number?

007f ffff

Select one:

a. a normalized number

b. not a number

c. zero

d. the largest positive denormalized number

e. positive infinity

Question 11

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Interpret the following hex as an IEEE 754 32-bit floating point value. What is this number?

0000 0001

Select one:

a. not a number

b. the smallest positive denormalized number

c. positive infinity

d. zero

e. a normalized number

Question 12

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Interpret the following hex as an IEEE 754 32-bit floating point value. What is this number?

8000 0000

Select one:

a. the smallest positive denormalized number

b. not a number

c. zero

d. a normalized number

e. positive infinity

Question 13

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Interpret the following hex as an IEEE 754 32-bit floating point value. What is this number?

FF80 0000

Select one:

a. a normalized number

b. zero

c. not a number

d. negative infinity

e. the smallest positive denormalized number

Question 14

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Interpret the following hex as an IEEE 754 32-bit floating point value. What is this number?

FFB0 0000

Select one:

a. negative infinity

b. zero

c. the smallest positive denormalized number

d. negative not a number

e. a normalized number

Question 15

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Order the following in terms of smallest to largest magnitude (the largest numbers that can be represented):
short int (16 bits)
int (32 bits)
float (32 bit IEEE)
double (64 bit IEEE)

Select one:

a. float, short int, int, double

b. short int, float, int, double

c. short int, float, double, int

d. short int, int, float, double

e. float, double, short int, int

Solution

8) A

9) E

10) D

11) E

12) D

13) A

14) E

15) D (As short int has less magnitude compared to int and float)