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Which of the following is a technique that is used to execute process that is not in main memory completely?
a) Main memory
b) virtual memory
c) Demand paging              
d) none of these



b

……. is the concept in which a process is copied into the main memory from the secondary memory according to the requirement.
a) Paging                              
b) Demand paging
c) Segmentation  
d) Swapping


b

When a program tries to access a page that is mapped in address space but not loaded in physical memory, then ….
a) segmentation fault occurs            
b) fatal error occurs
c) page fault occurs
d) no error occurs


c

The instruction being executed must be in
a) physical memory
b) logical memory
c) physical & logical memory          
d) none


a

Virtual memory is normally implemented by …
a) Demand paging             
b) buses
c) virtualization   
d) all of these


a

Which of the following are the advantage of Demand Paging?
a) Large virtual memory.
b) More efficient use of memory.
c) There is no limit on degree of multiprogramming    
d) All of these


d