Multiple Choice Questions on Caching

Add the following multiple choice questions and answers and explanations verbatim (DO NOT change the given wording). ========================================== New Question 1: What is cache invalidation in the context of server-side caching? Choice A: The process of increasing cache size. Choice B:...

Add the following multiple choice questions and answers and explanations verbatim (DO NOT change the given wording). ========================================== New Question 1: What is cache invalidation in the context of server-side caching? Choice A: The process of increasing cache size. Choice B: The process of updating or removing outdated data from the cache. Choice C: The method of distributing cache across multiple servers. Choice D: The technique of encrypting cached data. Correct answer: B Explanation: Cache invalidation involves updating or removing data from the cache that is no longer current, ensuring data consistency. ========================================== New Question 2: How can server settings influence client-side caching behavior? Choice A: By determining the color scheme of the website. Choice B: By setting HTTP cache headers that instruct the client on how to cache resources. Choice C: By controlling the client's device storage capacity. Choice D: By enforcing client-side scripts execution. Correct answer: B Explanation: Server settings can include HTTP cache headers like Cache-Control and Expires, which guide the client's caching behavior for resources. ========================================== New Question 3: What is the primary purpose of object caching on the server side? Choice A: To store complete HTML pages for faster delivery. Choice B: To save and retrieve application-level data objects quickly. Choice C: To cache images and media files. Choice D: To manage user sessions. Correct answer: B Explanation: Object caching involves storing data objects used by applications, enabling rapid access and reducing processing time. ========================================== New Question 4: How does cache size impact server-side caching performance? Choice A: Larger cache sizes can store more data, reducing cache misses. Choice B: Smaller cache sizes always improve performance. Choice C: Cache size has no impact on performance. Choice D: Larger cache sizes increase network latency. Correct answer: A Explanation: A larger cache can hold more data, which can decrease the likelihood of cache misses and improve performance. ========================================== New Question 5: Which of the following is an effective cache management strategy? Choice A: Never invalidating cache data. Choice B: Randomly clearing the cache at intervals. Choice C: Implementing Least Recently Used (LRU) eviction policies. Choice D: Storing all possible data in the cache without limits. Correct answer: C Explanation: LRU eviction policies remove the least recently used items when the cache reaches its capacity, effectively managing cache storage. ==========================================