chapter 3 76
Authored by Duong Bao
Information Technology (IT)
University
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76 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The decimal number -127(10) corresponds to which of the following signed, 8-bit binary numbers (2's complement):
Cannot be represented
1000 0001(2)
1000000(2)
1111 1111(2)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the hexadecimal numbering system, the number 5CD7(16) corresponds to which of the following decimal values:
23511(10)
23767(10)
23719(10)
23725(10)
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Binary number 1100 1011 1101(2) corresponds to which of the following hexadecimal values:
DBC(16)
CDB(16)
CBD(16)
BDC(16)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The sum of two 8-bit unsigned binary numbers 0101 0101(2) and 0110 1001(2) is:
1011 1010(2)
1010 1000(2)
1011 1110(2)
1001 1000(2)
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In 80-bit floating-point representation, how many bits are allocated for the exponent?
14 bit
13 bit
16 bit
15 bit
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
According to IEEE 754/1985, the extended double-precision floating-point format has a total length
80 bit
64 bit
32 bit
16 bit
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
`The extended ASCII code contains how many characters?
256
512
1024
128
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