Jamia Millia Islamia Computer Previous Year Questions (PYQs) – Page 23 of 29
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When some unidentified/unknown person/firm sends you mail in a trustworthy/lucrative way asking for sensitive bank and online payment information, this is a case of __?
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Solution
That description matches credential-stealing emails → Phishing.
Which of the following CPU registers contains the address of next instruction during program execution?
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Solution
The Program Counter (PC) stores the address of the next instruction to be fetched for execution.
What is the time complexity of a linear search in an unsorted array?
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Solution
Linear search checks each element sequentially until the desired element is found. In the worst case it checks all elements.
Time Complexity = O(n)
Which memory card format is most widely used in smartphones?
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Solution
Smartphones use microSD (Secure Digital family).
Which of the following is NOT a valid operator in C?
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Solution
+, &, and % are valid operators in C.
# is not an operator; it is used in preprocessor directives like #include and #define.
Which of the following is a popular VoIP application?
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Solution
Skype is a well-known VoIP app.
1 Petabyte is equivalent to 1024 _______.
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Solution
1 PB = 1024 Terabytes.
What is the main function of the Control Unit (CU) of the CPU?
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Solution
The Control Unit directs the operation of the processor by fetching instructions, decoding them, and controlling their execution.
Computer language used for Internet is:
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Solution
HTML is the standard markup for web pages.
Which of the following is a Class-A IP address?
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Solution
Class-A addresses range from 1.0.0.0 to 126.255.255.255.
Hence 125.10.10.1 belongs to Class A.
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