TLB (Translation Lookaside Buffer) MCQs

By: Prof. Dr. Fazal Rehman | Last updated: June 23, 2025

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1. : What is the primary function of a Translation Lookaside Buffer (TLB)?





2. : How does a TLB improve system performance?





3. : What is the typical size of a TLB in modern processors?





4. : Which of the following best describes a “TLB hit”?





5. : What happens during a “TLB miss”?





6. : Which strategy is commonly used to manage a TLB when it becomes full?





7. : What is a “TLB flush”?





8. : How does the “associativity” of a TLB affect its performance?





9. : What is the typical associativity of a modern TLB?





10. : Which of the following best describes a “TLB entry”?





11. : What is the impact of a TLB’s “cache size” on performance?





12. : What role does a TLB play in a multi-level page table system?





13. : How does a “TLB shootdown” occur?





14. : What is the main challenge associated with a “TLB shootdown”?





15. : Which of the following is a common TLB replacement policy?





16. : How does a “TLB tag” function in the context of address translation?





17. : What is the purpose of the “TLB reach” metric?





18. : What is the typical way a TLB handles address translations in a virtual memory system?





19. : Which of the following can cause a TLB miss?





20. : How does a “TLB hit rate” affect system performance?





21. : What does the term “TLB context switch” refer to?





22. : Which of the following is a benefit of using a TLB in a computer system?





23. : What happens to the TLB entries when a process is swapped out?





24. : What is the effect of a larger TLB cache on address translation?





25. : What role does “TLB associativity” play in reducing TLB misses?





26. : What type of TLB is used to improve performance for multi-core processors?





27. : How does “TLB replacement policy” affect system performance?





28. : What is the primary function of the “TLB tag” field?





29. : What happens during a “TLB context switch”?





30. : In which scenario is a “TLB flush” typically performed?





31. : What impact does “TLB size” have on system performance?





32. : How does the “TLB hit ratio” relate to system efficiency?





33. : What is the role of a “TLB data cache”?





34. : How is a TLB utilized in a virtual memory system?





35. : What does a “TLB tag match” indicate?





36. : How often should a TLB be invalidated?





37. : What is the typical granularity of a TLB entry?





38. : Which factor most influences the effectiveness of a TLB?





39. : What is the primary benefit of “TLB multi-level caching”?





40. : What is the impact of “TLB associativity” on cache conflict misses?





41. : What role does the “TLB replacement policy” play in managing cache efficiency?





42. : How does “TLB caching” affect virtual memory performance?





43. : What is a “TLB miss rate”?





44. : How does a TLB “context switch” affect system performance?





45. : What does the “TLB reach” measure in a system?





 

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