Quiz 12.7

DIRECTIONS: Read each question carefully. Then click on the dot next to the answer that most closely fits the question. Try to answer all questions on this quiz and when you are done, click on the grade me button at the bottom.

Coverage: Sections 12.8

  1. What is a hole in memory?
a region of memory that is not used by any job
a region of memory that is being used by some job
a flaw in the memory hardware

  1. When memory has lots of holes, we say it is ...
compacted
fragmented
internalized
allocated

  1. Why type of fragmentation occurs when there are unused region inside jobs?
internal fragmentation
external fragmentation

  1. Holes are really fictions in the "mind" of ...
the user
the programmer
the network
the operating system

  1. What kind of fragmentation occurs in virtual memory systems?
whole frames are allocated so if the last one is unused, that memory will be wasted
not all pages are in use at any given time so they must occupy memory on the hard disk
some frames are not currently used because there are not enough jobs in the computer

  1. Which of the following page (frame) size is common?
128 bytes
4096 bytes
65536 bytes
1 MB