adplus-dvertising
frame-decoration

Question

External fragmentation exists when :

a.

enough total memory exists to satisfy a request but it is not contiguous

b.

the total memory is insufficient to satisfy a request

c.

a request cannot be satisfied even when the total memory is free

d.

none of the mentioned

Answer: (a).enough total memory exists to satisfy a request but it is not contiguous

Engage with the Community - Add Your Comment

Confused About the Answer? Ask for Details Here.

Know the Explanation? Add it Here.

Q. External fragmentation exists when :

Similar Questions

Discover Related MCQs

Q. External fragmentation will not occur when :

Q. Sometimes the overhead of keeping track of a hole might be :

Q. When the memory allocated to a process is slightly larger than the process, then :

Q. Physical memory is broken into fixed-sized blocks called ________

Q. Logical memory is broken into blocks of the same size called _________

Q. Every address generated by the CPU is divided into two parts :

Q. The __________ is used as an index into the page table.

Q. The _____ table contains the base address of each page in physical memory.

Q. The size of a page is typically :

Q. If the size of logical address space is 2 to the power of m, and a page size is 2 to the power of n addressing units, then the high order _____ bits of a logical address designate the page number, and the ____ low order bits designate the page offset.

Q. With paging there is no ________ fragmentation.

Q. The operating system maintains a ______ table that keeps track of how many frames have been allocated, how many are there, and how many are available.

Q. Paging increases the ______ time.

Q. Smaller page tables are implemented as a set of _______

Q. The page table registers should be built with _______

Q. For larger page tables, they are kept in main memory and a __________ points to the page table.

Q. For every process there is a __________

Q. Time taken in memory access through PTBR is :

Q. Each entry in a Translation look-aside buffer (TLB) consists of :

Q. If a page number is not found in the TLB, then it is known as a :