1) Assume we use 8-bit cell to store floating point numbers, 1 bit for sign, 3 bits for excessed exponent, and 4 bits for significand (seeeffff). What is the excess for denormalized decimals?   Question options:   a.  6   b.  7   c.  2   d.  3   2) Assume we use 8-bit cell to store floating point numbers, 1 bit for sign, 3 bits for excessed exponent, and 4 bits for significand. What is the decimal value for a cell with bit pattern  0 111  1101   Question options:   a.   125   b.  224   c.  Positive infinity   d.  Negative infinity   e. NAN (Not a number)   3) For IEEE 754 single precision floating point numbers, what is the excess for denormalized decimals?   Question options:   a.  255   b.  254   c. 127   d.  126   e.  None of the above

Computer Networking: A Top-Down Approach (7th Edition)
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Author:James Kurose, Keith Ross
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1)
Assume we use 8-bit cell to store floating point numbers, 1 bit for sign, 3 bits for excessed exponent, and 4 bits for significand (seeeffff). What is the excess for denormalized decimals?
 
Question options:
 
a.  6
 
b.  7
 
c.  2
 
d.  3
 
2) Assume we use 8-bit cell to store floating point numbers, 1 bit for sign, 3 bits for excessed exponent, and 4 bits for significand. What is the decimal value for a cell with bit pattern  0 111  1101
 
Question options:
 
a.   125
 
b.  224
 
c.  Positive infinity
 
d.  Negative infinity
 
e. NAN (Not a number)
 
3) For IEEE 754 single precision floating point numbers, what is the excess for denormalized decimals?
 
Question options:
 
a.  255
 
b.  254
 
c. 127
 
d.  126
 
e.  None of the above
 
4) For IEEE 754 single precision floating point numbers, what is the exponent of a denormalized floating point number in decimal ?
 
Question options:
 
a.   -126
 
b.   -127
 
c.   126
 
d.  127
 
5) For IEEE 754 single precision floating point numbers, how many bits for mantisa?
 
Question options:
 
a.   7
 
b.   31
 
c.   23
 
d.  8
 
6) For IEEE 754 single precision floating point numbers, which of following is an example of NAN ?
 
Question options:
 
a.    1 111    1 111    0000   0000  1101   0000   0000  0000
 
b.    0 111    1 111    1000   0000  1101   0000   0000  0000
 
c.    0 111    1 111    1000   0000  0000   0000   0000  0000
 
d.  1 111    1 111    0000   0000  0000   0000   0000  0000
 
e.  None of the above
 
7) Assume we use 8-bit cell to store floating point numbers, 1 bit for sign, 3 bits for excessed exponent, and 4 bits for significand. What is the decimal value for a cell with bit pattern  0 110  1101
 
Question options:
 
a.   14.25
 
b.  50
 
c.  50.25
 
d.  14.5
 
e. NAN (Not a number)
 
8) Assume we use 8-bit cell to store floating point numbers, 1 bit for sign, 3 bits for excessed exponent, and 4 bits for significand (seeeffff). What is the excess for normalized decimals?
 
Question options:
 
a.  6
 
b.  7
 
c.  2
 
d.  3
 
9) For IEEE 754 single precision floating point numbers, if X is a negative denormalized floating point number with mantisa   010  0000 0000  0000  0000  0000, what is the decimal value of X?
 
Question options:
 
a.   –1.25 × 2^(–126 )
 
b.   –1.25 × 2^(–127 )
 
c.   –0.25 × 2^(–127)
 
d.   –0.25 × 2^(–126 )
 
e.  None of the above
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