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Jamia Millia Islamia MCA Previous Year Questions (PYQs)

Jamia Millia Islamia MCA Computer Organization And Architecture (COA) PYQ

Jamia Millia Islamia MCA PYQ
Which of the following statements about RAM is correct?





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Jamia Millia Islamia MCA Previous Year PYQ Jamia Millia Islamia MCA JECA MCA 2025 PYQ

Solution

RAM is volatile memory used for temporary storage during program execution.
Jamia Millia Islamia MCA PYQ
Which of the following is NOT a characteristic of the von Neumann architecture? 





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Jamia Millia Islamia MCA Previous Year PYQ Jamia Millia Islamia MCA JAMIA MILLIA ISLAMIA MCA 2025 PYQ

Solution

 Von Neumann architecture is based on a stored program concept where instructions and data are stored in the same memory. It uses binary arithmetic and executes instructions sequentially through the fetch–decode–execute cycle. Parallel processing is not a characteristic of the classical von Neumann model.
Jamia Millia Islamia MCA PYQ
In computer memory hierarchy, which memory type is the fastest ?





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Jamia Millia Islamia MCA Previous Year PYQ Jamia Millia Islamia MCA JAMIA MILLIA ISLAMIA MCA 2025 PYQ

Solution

Speed order in memory hierarchy:
Registers > Cache > RAM > Secondary Storage
Among the given options, cache memory is the fastest.
Jamia Millia Islamia MCA PYQ
In which memory type does the data remain intact even after the power is switched off?





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Jamia Millia Islamia MCA Previous Year PYQ Jamia Millia Islamia MCA JAMIA MILLIA ISLAMIA MCA 2025 PYQ

Solution

ROM is non-volatile memory that retains data even when power is off.
Jamia Millia Islamia MCA PYQ
What is the full form of BIOS?





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Jamia Millia Islamia MCA Previous Year PYQ Jamia Millia Islamia MCA JAMIA MILLIA ISLAMIA MCA 2025 PYQ

Solution

BIOS is firmware stored in ROM that initializes hardware and starts the boot process when the computer is powered on.
Jamia Millia Islamia MCA PYQ
What is the main function of the Control Unit (CU) of the CPU?





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Jamia Millia Islamia MCA Previous Year PYQ Jamia Millia Islamia MCA JAMIA MILLIA ISLAMIA MCA 2025 PYQ

Solution

The Control Unit directs the operation of the processor by fetching instructions, decoding them, and controlling their execution.
Jamia Millia Islamia MCA PYQ
What is the full form of CPU?





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Jamia Millia Islamia MCA Previous Year PYQ Jamia Millia Islamia MCA JAMIA MILLIA ISLAMIA MCA 2025 PYQ

Solution

CPU is the main component that performs calculations and executes instructions.

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