Spring Boot Spring Boot Caching and Messaging

Question 1

Which annotation enables Spring's annotation-driven caching infrastructure in a Spring Boot application?

Accepted Answer

@EnableCaching

Answer

@CacheConfig

Answer

@CacheManagement

Answer

@EnableCache

Question 2

What does the `@Cacheable` annotation do when applied to a Spring service method?

Accepted Answer

Caches the method return value using the method arguments as the key

Answer

Evicts all entries from the named cache

Answer

Forces a cache update on every invocation

Answer

Configures the cache TTL for the method

Question 3

Which Spring Boot starter auto-configures Redis as a cache provider?

Accepted Answer

spring-boot-starter-data-redis

Answer

spring-boot-starter-cache

Answer

spring-boot-starter-redis

Answer

spring-boot-starter-redis-cache

Question 4

What is the purpose of the `@CacheEvict` annotation?

Accepted Answer

Removes one or all entries from a named cache

Answer

Populates the cache on application startup

Answer

Marks a method to bypass the cache entirely

Answer

Configures the serialization strategy for cached objects

Question 5

Which Spring Boot property sets the default Time-To-Live for entries in a Redis cache?

Accepted Answer

spring.cache.redis.time-to-live

Answer

spring.cache.redis.ttl

Answer

spring.redis.cache.expire

Answer

spring.data.redis.ttl

Question 6

What does `@CachePut` do differently from `@Cacheable`?

Accepted Answer

It always executes the method and updates the cache with the result

Answer

It evicts the cache before invoking the method

Answer

It stores the method input instead of the output in the cache

Answer

It disables caching for the annotated method