Archive for Exam 1999 FE (AM)

Question 7

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Question 6

When performing addition and subtraction operations in a computer, it is important to be careful of overflow. Which of the operations described in the following table have the potential for generating an overflow condition?

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A. a, d, f, g
B. b, c, e, h
C. b, e
D. c, e, h

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Question 5

In a floating-point representation, which operation will ensure that the most significant digit of the absolute value of the mantissa is a non-zero number?
A. Round up
B. Truncate
C. Carry
D. Normalize

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Question 4

How is the decimal number –5.625 expressed as an 8-bit fixed-point binary number? Assume that the binary point is located between bits 4 and 5, and that two’s complement is used to represent negative numbers.

A. 01001100
B. 10100101
C. 10100110
D. 11010011

8 7 6 5 . 4 3 2 1
________↑________
Fixed point

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Question 2

What is the product of the hexadecimal number 0.FEDC multiplied by four?

A. 1.FDB8
B. 2.FB78
C. 3.FB70
D. F.EDC0

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Question 3

Q3. How many digits would be required in order to express the greatest possible 14-digit hexadecimal number in decimal notation? Assume log10(2) = 0.301
A. 15
B. 16
C. 17
D. 18

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Question 1

Which of the following decimal numbers would have an infinite number of bits when expressed in binary?

A. 0.05
B. 0.125
C. 0.375
D. 0.5

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