Integrate Azure Managed Redis in AI Solutions AI-200 Practice Questions (Page 2)

Questions 6–10

1. 6foundation · easy

   In Azure Managed Redis, which command is used to set a time-to-live (TTL) on an existing key?

   • ATTL
   • BDELETE
   • CSET
   • DEXPIRE
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2. 7expert · hard

   A research team is using Azure Managed Redis to store embeddings of scientific papers. They need to perform exact similarity searches for a small dataset of 10,000 vectors, but they also need to support future scaling to millions of vectors. Which index type should they choose?

   • AUse a sorted set to store embeddings and perform linear scan.
   • BUse a combination of FLAT and HNSW in the same index.
   • CFLAT index for exact results, and plan to switch to HNSW when the dataset grows.
   • DHNSW index from the start, accepting approximate results.
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4. 8foundation · easy

   Which cache invalidation strategy involves updating the cache immediately whenever the underlying data changes?

   • ARead-through caching
   • BCache-aside caching
   • CWrite-through caching
   • DTime-based expiration
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5. 9expert · hard

   A team is building a semantic search feature using Azure Managed Redis. They have 10 million embeddings of 768 dimensions. The team needs sub-100ms query latency and high recall. They are considering HNSW and FLAT index types. Which should they choose?

   • AHNSW with default parameters, ignoring tuning.
   • BUse a sorted set to store embeddings and perform linear scan.
   • CHNSW with a high M parameter and ef_search to balance recall and latency.
   • DFLAT index for exact results, accepting higher latency.
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6. 10application · medium

   A news portal caches article content in Azure Managed Redis. When an editor corrects a typo in an article, the change must appear on the public website immediately. The team currently uses a write-through strategy that updates the cache whenever an article is saved. However, some corrections are made directly in the database by a separate admin tool that does not update the cache. Which additional measure should the team implement to ensure immediate consistency?

   • ASet a short expiration, such as 60 seconds, on all article cache keys.
   • BUse a read-through cache and rely on the database's change feed to invalidate the cache.
   • CHave the admin tool delete the corresponding cache key after every database update.
   • DIncrease the cache size to reduce the chance of eviction of article keys.
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