PrepBharat

1. CPU fetches the instruction from memory according to the value of ____________
a) program counter
b) status register
c) instruction register
d) program status word

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2. A memory buffer used to accommodate a speed differential is called ____________
a) stack pointer
b) cache
c) accumulator
d) disk buffer

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3. Which one of the following is the address generated by CPU?
a) physical address
b) absolute address
c) logical address
d) none of the mentioned

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4. Run time mapping from virtual to physical address is done by ____________
a) Memory management unit
b) CPU
c) PCI
d) none of the mentioned

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5. Memory management technique in which system stores and retrieves data from secondary storage for use in main memory is called?
a) fragmentation
b) paging
c) mapping
d) none of the mentioned

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6. The address of a page table in memory is pointed by ____________
a) stack pointer
b) page table base register
c) page register
d) program counter

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7. Program always deals with ____________
a) logical address
b) absolute address
c) physical address
d) relative address

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8. The page table contains ____________
a) base address of each page in physical memory
b) page offset
c) page size
d) none of the mentioned

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9. What is compaction?
a) a technique for overcoming internal fragmentation
b) a paging technique
c) a technique for overcoming external fragmentation
d) a technique for overcoming fatal error

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10. Operating System maintains the page table for ____________
a) each process
b) each thread
c) each instruction
d) each address

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