This chapter covers Azure Cache for Redis. AZ-900 tests under 2.4.
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A simple way to picture Azure Cache for Redis
Retrieving data from a database is slow. A cache keeps frequently-used data in fast memory, reducing database load and improving response time.
Redis is an in-memory data store used as a cache. Azure Cache for Redis is a managed Redis service, improving application performance by caching frequently-accessed data.
Create a Redis cache
A managed Redis instance is provisioned.
Store frequently-accessed data
Hot data is cached in Redis.
Check cache first
Applications check the cache before the database.
A web app caches user sessions in Redis, reducing database queries and improving response time.
Objective 2.4 expects understanding of caching for performance.
Redis is an in-memory cache.
Improves performance by reducing database load.
Suitable for frequently-accessed data.
It's a managed in-memory cache service using Redis, improving application performance by caching frequently-accessed data.
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