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UGC NET Computer Science Previous Year Questions (PYQs)

UGC NET Computer Science Computer Organization And Architecture (COA) PYQ

UGC NET Computer Science PYQ
The transformation of data from main memory to cache memory is referred as:





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UGC NET Computer Science UGC NET PYQ UGC NET Computer Science UGC NET Computer Science 26 June 2025 (Paper II) PYQ

Solution

In computer architecture, when data is transferred from main memory to cache memory, a process known as mapping determines where each block of main memory will be placed in the cache. There are different types of mapping techniques such as Direct Mapping, Associative Mapping, and Set-Associative Mapping. This process ensures efficient and quick access to frequently used data.
UGC NET Computer Science PYQ
Match List I with List II:
List I List II
A. Address Space I. Associative Mapping
B. Memory Space II. Logical address
C. Cache Memory III. Physical address
D. Segmented Program IV. Virtual address
Choose the correct answer from the options given below:





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UGC NET Computer Science UGC NET PYQ UGC NET Computer Science UGC NET Computer Science 26 June 2025 (Paper II) PYQ

Solution

  • A. Address Space → Virtual Address (IV)
    Address space refers to the range of virtual addresses a process can use in memory.
  • B. Memory Space → Physical Address (III)
    Memory space corresponds to the actual physical memory locations in RAM.
  • C. Cache Memory → Associative Mapping (I)
    Cache memory uses mapping techniques such as associative mapping to store data efficiently.
  • D. Segmented Program → Logical Address (II)
    In segmentation, programs are divided into segments, each referenced by logical addresses.
UGC NET Computer Science PYQ
The computer needs to process each instruction with the following sequence of steps:
A. Calculate the effective address
B. Fetch the instruction from memory
C. Decode the instruction
D. Fetch the operands from the memory
E. Execute the instruction





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UGC NET Computer Science UGC NET PYQ UGC NET Computer Science UGC NET Computer Science 26 June 2025 (Paper II) PYQ

Solution

First fetch the instruction (B), then decode it (C). If required, compute the effective address (A), fetch the operands (D), and finally execute the instruction (E).

UGC NET Computer Science

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UGC NET Computer Science

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