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Operating System
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Computer Science Fundamentals
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Computer Science Fundamentals
What is the 1’s complement of 11010?
11010
11011
00110
00101
The 1’s complement of a number is obtained by converting all the 0 bits to 1 and all 1’s to 0’s. Here, 11010 gets converted to 00101.
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Computer Science Fundamentals
A program created by Farmer and Venema for auditing capability.
SAAS
SATAN
SAN
SAT
SATAN is the Security analysis tool for auditing networks. It is created by farmer and venema.
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Computer Science Fundamentals
Perfrom BCD addition: 2+3= _______________
0010
0011
0101
1010
BCD of 2 =0010
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Computer Science Fundamentals
In the instruction ADD A, B, the answer gets stored in ___________
B
A
Buffer
C
In any instruction of the form ADD A, B; the answer gets stored in the A register. The format is: ADD Destination, Source.
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Computer Science Fundamentals
The base is the total number of digits in a number system.
True
False
The statement is true. In a positional number system, base is the number of digits the system comprises. For example, a binary number system comprises of only 2 digits, 0 and 1, therefore its base is 2. Similarly, the decimal system comprises 10 digits 0 to 9, therefore its base is 10.
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Computer Science Fundamentals
The 1’s complement of 1111111110.101 is _______________
1.010
0000000000.010
1111111110.101
1.101
The 1’s complement of a number is obtained by reversing the bits with value 1 to 0 and the bits with value 0 to 1. Here, 11111111110.101 gets converted to 000000001.010 in its 1’s complement format.
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Computer Science Fundamentals
The max term when X=Y=Z=1 is ________
x’+y’+z’
xyz
x’y’z’
x+y+z
The max term consists of variables forming an OR term. Here, when X=Y=Z=1, the expression is x’+y’+z’.
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Computer Science Fundamentals
Convert (22)8 into its corresponding decimal number.
28
18
81
82
To convert an octal number to decimal number:
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Computer Science Fundamentals
The result that is smaller than the smallest number obtained is referred to as ___________
NaN
Underflow
Smallest
Mantissa
It is referred to as underflow. Nan stands for not a number. The mantissa is the part after the decimal.
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Computer Science Fundamentals
This characteristic often draws the line between what is feasible and what is impossible.
Performance
System Evaluation
Modularity
Reliability
Algorithms help us to understand scalability. Performance often draws the line between what is feasible and what is impossible.
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