⚡ One HLD concept. 60 seconds. Interview ready· 1 of 10
A CDN speeds up web applications by caching content closer to users.
⚡ One HLD concept. 60 seconds. Interview ready· 2 of 10
Caching helps applications respond faster by serving data from memory instead of hitting the database.
⚡ One HLD concept. 60 seconds. Interview ready· 3 of 10
The Cache-Aside Pattern speeds up data retrieval by using a cache to store frequently accessed data.
⚡ One HLD concept. 60 seconds. Interview ready· 4 of 10
Redis is a fast in-memory data store used for caching and low-latency applications.
⚡ One HLD concept. 60 seconds. Interview ready· 5 of 10
Cache eviction policies determine which data to remove when caches are full.
⚡ One HLD concept. 60 seconds. Interview ready· 6 of 10
Cache invalidation is about knowing when to refresh cached data.
⚡ One HLD concept. 60 seconds. Interview ready· 7 of 10
Cache stampede occurs when many requests hit the database due to a cache miss.
⚡ One HLD concept. 60 seconds. Interview ready· 8 of 10
Cache penetration occurs when requests for non-existent data overload the database.
⚡ One HLD concept. 60 seconds. Interview ready· 9 of 10
DNS helps microservices find each other, but it has limitations that may require a service registry.
⚡ One HLD concept. 60 seconds. Interview ready· 10 of 10
Optimizing Elasticsearch involves using filters, caching, and measuring performance.
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