Question: The MMU contains special register called__________ to point to the start of a page table
Answer:
for a logical address (pi , bi) , the MMU computes <PTAR> + pi × lPT_entry to obtain the address of the page table entry of page pi, where lPT_entry is the length of the page table entry and <PTAR> denotes the content of the PTAR. The PTAR has to be loaded with the correct address when a process is scheduled.
MCQ: The MMU contains special register called__________ to point to the start of a page table
Explanation:
for a logical address (pi , bi) , the MMU computes <PTAR> + pi × lPT_entry to obtain the address of the page table entry of page pi, where lPT_entry is the length of the page table entry and <PTAR> denotes the content of the PTAR. The PTAR has to be loaded with the correct address when a process is scheduled.
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Related Questions
- 1. Kernel can store the address of the page table of a process in its _________
- 2. The MMU provides a special register called the ______ if a process tries to access a nonexistent page, or exceeds its access privileges while accessing a page. and a memory protection interrupt raised.
- 3. Which of the following is the function of paging hardware
- 4. The ________ is a small and fast associative memory that is used to eliminate the reference to the page table.
- 5. The TLB contains entries of the form ________ for a few recently accessed pages of a program that are in memory.
- 6. A probability that a page exists in memory is known as _______
- 7. A probability that a page exists in TLB is known as _______
- 8. When TLB is used for a address translation, effective memory access time is ______Where <em>Pr<sub>1</sub></em> = Probability that page exists in memory<em>Pr<sub>2</sub></em> = Probability that page exists in TLB<em>t<sub>mem</sub></em> = memory access time<em>t<sub>TLB</sub></em> = access time of TLB<em>t<sub>pfh</sub></em> = time overhead of page fault handling
- 9. Which of the following is used to reduce the size of memory committed to page tables?
- 10. In which of the following the page table of a process is itself is paged; the entire page table therefore does not need to exist in memory at any time?
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