OpLog_Replication_and_Extent_Store_Overview.pdf

OpLog Replication and Extent Store Overview Your Name: 1. What is the purpose of the OpLog in the AOS architecture? A. To store persistent data only B. To fulfill read requests until drained C. To manage storage tiers D. To bypass caching mechanisms 2. The Extent Store handles both lo...

OpLog Replication and Extent Store Overview Your Name: 1. What is the purpose of the OpLog in the AOS architecture? A. To store persistent data only B. To fulfill read requests until drained C. To manage storage tiers D. To bypass caching mechanisms 2. The Extent Store handles both long-term storage and sequential writes. A. True B. False 3. What determines the dynamic tier placement in Nutanix Information Lifecycle Management (ILM)? 4. Data being drained from the OpLog or data that is................................... has bypassed the OpLog directly. 5. Match the following components with their functions in the AOS architecture: 1. Extent A. Persistent bulk storage Store 2. ILM B. Manages data tier placement 3. C. Node responsible for data OpLog replication 4. D. Temporary storage for fast CVM access 6. Which statement is false regarding data writes in AOS? A. No space is wasted for caching. B. There can be hot-spots during write operations. C. Dynamic writes are dependent on disk fitness scores. D. Writes are done at a granular level. 7. Containers with fingerprinting enabled will not use hashing schemes for deduplication. A. True B. False 8. What is the main benefit of using SSDs in the OpLog? 9. What is a key benefit of using AHV-AOS Fast Path with iSER? A. Higher storage performance for VMs B. Increased context switches C. Software copies between spaces D. Higher CPU consumption 10. ISER provides lower IOPS/latency with higher CPU consumption compared to TCP. A. True B. False 11. What does iSER stand for? 12. Nutanix's approach to dynamic data placement optimizes.............................. usage. 13. Match the following AOS capabilities with their descriptions: 1. AHV A. Reduces context switches and Turbo memory transfers (Frodo) 2. B. Target using iSER iSER 3. Dynamic C. Optimizes resource usage Data Placement 4. D. Initiator using iSER Stargate 14. What is the primary function of the Extent Store? A. Temporary data staging area B. Data backup and archiving C. Main storage area for data after OgLog processing D. Real-time data analytics 15. Inline compression only occurs after data is processed for later access. A. True B. False 16. What method does the Nutanix platform use for data protection and availability? 17. Erasure codes (ECs) utilize a concept similar to......................... to encode data. 18. Match the following types of data reads with their characteristics: 1. A. Removes full strips if a vDisk is Read deleted Cold 2. B. Local vDisk data blocks Read contributing to strip Hot 3. C. Distributed data blocks from the Erasure same vDisk across nodes Coding 4. D. Calculates parity to recover Garbage missing blocks Collection 19. What trade-off does using a replication factor (RF) imply? A. Increased reading speed with less storage B. Lower availability and reduced cost C. Higher availability but more storage resources required D. No impact on availability or storage resources 20. Cross-vDisk strips are preferred for read cold data to minimize remote reads. A. True B. False 21. What happens during a host or disk failure when erasure coding is used? 22. A system that determines the placement of data blocks in the strip without overhead on the active write path is known as a......................... system. 23. Which of the following strategies is utilized for managing write operations on cold data? A. Immediate write to multiple nodes B. Use single node storage exclusively C. No write required for data not accessed in over 7 days D. Prioritize write speed over redundancy