Operating System Mcqs

Page No. 26

The run time mapping from virtual to physical addresses is done by a hardware device called the ____________


aVirtual to physical mapper

✖


bMemory management unit

✓


cMemory mapping unit

✖


dNone of the mentioned

✖



The address loaded into the memory address register of the memory is referred to as ____________


aPhysical address

✓


bLogical address

✖


cNeither physical nor logical

✖


dNone of the mentioned

✖


View Answer Physical address

The address generated by the CPU is referred to as ____________


aPhysical address

✖


bLogical address

✓


cNeither physical nor logical

✖


dNone of the mentioned

✖


View Answer Logical address

Operating System maintains the page table for ____________


aeach process

✓


beach thread

✖


ceach instruction

✖


deach address

✖


View Answer each process

What is compaction?


aa technique for overcoming internal fragmentation

✖


ba paging technique

✖


ca technique for overcoming external fragmentation

✓


da technique for overcoming fatal error

✖



The page table contains ____________


abase address of each page in physical memory

✓


bpage offset

✖


cpage size

✖


dnone of the mentioned

✖



Program always deals with ____________


alogical address

✓


babsolute address

✖


cphysical address

✖


drelative address

✖


View Answer logical address

The address of a page table in memory is pointed by ____________


astack pointer

✖


bpage table base register

✓


cpage register

✖


dprogram counter

✖



Memory management technique in which system stores and retrieves data from secondary storage for use in main memory is called?


afragmentation

✖


bpaging

✓


cmapping

✖


dnone of the mentioned

✖


View Answer paging

Run time mapping from virtual to physical address is done by ____________


aMemory management unit

✓


bCPU

✖


cPCI

✖


dNone of the mentioned

✖



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