Qus : 1 WB JECA MCA PYQ 1

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1 $2^{20}$ bytes = 1 MB
2 $2^{16}$ bytes = 64 KB
3 $2^{20}$ words = 2 MB
4 $2^{36}$ bytes = 64 GB
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WB JECA MCA Previous Year PYQ WB JECA MCA JECA MCA 2025 PYQ

Qus : 2 WB JECA MCA PYQ 1

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1 Fetch → Decode → Execute
2 Decode → Fetch → Execute
3 Execute → Decode → Fetch
4 Fetch → Execute → Decode
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WB JECA MCA Previous Year PYQ WB JECA MCA JECA MCA 2025 PYQ

Qus : 3 WB JECA MCA PYQ 1

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1 ROM
2 RAM
3 Cache
4 DMA controller
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WB JECA MCA Previous Year PYQ WB JECA MCA JECA MCA 2025 PYQ

Qus : 4 WB JECA MCA PYQ 4

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1 Faster than DRAM
2 Expensive
3 Volatile
4 Requires frequent refreshing
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WB JECA MCA Previous Year PYQ WB JECA MCA JECA MCA 2025 PYQ

Qus : 5 WB JECA MCA PYQ 1

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1 PC → MAR → Memory → MDR → IR
2 PC → Memory → MDR → IR
3 PC → Memory → IR
4 PC → MAR → Memory → IR
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WB JECA MCA Previous Year PYQ WB JECA MCA JECA MCA 2025 PYQ

Qus : 6 WB JECA MCA PYQ 2

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1 32 KB
2 16 KB
3 8 KB
4 24 KB
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WB JECA MCA Previous Year PYQ WB JECA MCA JECA MCA 2025 PYQ

[{"qus_id":"17671","year":"2025"},{"qus_id":"17703","year":"2025"},{"qus_id":"17704","year":"2025"},{"qus_id":"17705","year":"2025"},{"qus_id":"17706","year":"2025"},{"qus_id":"17762","year":"2025"}]