[amp_mcq option1=”are used for temporary program variable storage” option2=”are only necessary with fixed partitions” option3=”track page boundaries” option4=”track the beginning and ending of programs E. None of the above” correct=”option3″]
The correct answer is: C. track page boundaries.
Boundary registers are used to track the boundaries between pages in memory. This information is used by the memory management unit (MMU) to translate virtual addresses to physical addresses.
Option A is incorrect because boundary registers are not used for temporary program variable storage. This is typically done by the CPU’s registers or by the program’s stack.
Option B is incorrect because boundary registers are not only necessary with fixed partitions. They can also be used with variable partitions.
Option D is incorrect because boundary registers do not track the beginning and ending of programs. This information is typically stored in the program’s executable file.
Option E is incorrect because boundary registers are used in memory systems.