Indicate all the false statements from the statements given below:

GATE · 1991 · CS · Question 3 subparts· Modified — slightly modified from the official paper; see the solution

1. A.

   The amount of virtual memory available is limited by the availability of secondary storage.

2. B.

   Any implementation of a critical section requires the use of an indivisible machine-instruction, such as test-and-set.

3. C.

   The LRU page replacement policy may cause thrashing for some type of programs.

4. D.

   The best fit techniques for memory allocation ensures the memory will never be fragmented.

Attempted by 5 students.