Jamia Millia Islamia Computer Previous Year Questions (PYQs) – Page 24 of 29
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The operator "&&" in C represents:
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Solution
&& performs logical AND between two conditions and returns true only if both conditions are true.
Convert the following number to decimal: (1032.2)_4
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Solution
1·4^3 + 0·4^2 + 3·4 + 2 + 2·4^(-1) = 64 + 12 + 2 + 0.5 = 78.5
The default subnet mask for Class-A IP address is …
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Solution
A has first octet for network and three octets for host, so mask = 255.0.0.0.
What does the acronym URL stand for?
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Solution
URL is the address used to access resources on the internet.
Which of the following IP address classes is reserved for multicasting?
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Solution
Class D addresses (224.0.0.0 to 239.255.255.255) are used for multicasting.
Which of the following is NOT a valid C language function prototype?
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Solution
Standard C specifies main should return int, so void main() is not considered a proper function prototype.
Python was conceived in the late ____ by Guido van Rossum.
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Solution
Python was started in 1989 (late 1980s)
The number of links in a fully meshed network of N nodes is …
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Solution
Each node is connected to every other node once.
Total links = $\dfrac{N(N-1)}{2}$.
Which of the following is the smallest memory unit?
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Solution
Bit is the smallest unit of data in a computer and can store either 0 or 1.
Which memory must be refreshed many times per second?
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Solution
DRAM cells leak charge and require periodic refresh.
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