Memory Management in Operating Systems

The solution of internal fragmentation is the ____________

A solution to the problem of external fragmentation is ____________

When the memory allocated to a process is slightly larger than the process, then ____________

External fragmentation exists when?

In the working set model, for:
2 6 1 5 7 7 7 7 5 1 6 2 3 4 1 2 3 4 4 4 3 4 3 4 4 4 1 3 2 3
if DELTA = 10, then the working set at time t1 (….7 5 1) is?

 A process is thrashing if ____________

What is a page fault ?

__________ has the lowest fault rate of all the page replacement algorithms.

A ____________ is a computer program that is the heart and core of an Operating System.

Memory management is used to______

If the swapping algorithm is not efficient then a condition occurs known as

If a page fault occurs for a reference to an address that's not part of the virtual address space, called

If the page is not loaded in memory at the time the fault is generated, called

If the page is loaded in memory at the time the fault is generated, but is not marked in the memory management unit as being loaded in memory called

A ......... is a trap to the software raised by hardware when a program accesses a page that is mapped in the virtual address space, but not loaded in physical memory.

Many operating system can 'trick' programmes into using memory scattered around the hard disk and $\mathrm{RAM}$ as if it is one continuous chunk of memory, called

A term 'Bus error' is known as

Which is a process that reduces the amount of fragmentation?

Pages are swapped out and then accessed causing frequent faults is called

The page free queue is a list of page frames that are available for assignment after a