In swapping technique of Memory Management the total amount transfer is directly proportional to the?

(A) Amount of space on backing store
(B) Amount of the memory swapped
(C) Space on main memory
(D) All of the above

__ refers to the situation when free memory space exists to load a process in the memory but the space is not contiguous.

(A) Internal fragmentation
(B) Segmentation
(C) External fragmentation
(D) Swapping

The main criteria of page replacement in optimal page replacement algorithm is to?

(A) Replacement that page will not be use for the longest period of time
(B) Replacement that page will be required most frequently in the execution of process
(C) Replace the page which is biggest in size.
(D) None of the above