Quiz
Caching Strategies for High-Performance Systems
Perguntas do quiz (9)
1What is a primary reason for using a caching layer in a high-performance system?
- ATo simplify database schema design.
- BTo reduce the frequency of accessing the database disk.
- CTo improve write throughput of the database.
- DTo avoid using load balancers.
2Why is a horizontally distributed caching layer advantageous?
- AIt eliminates the need for a database.
- BIt allows the caching layer to be scaled independently of the application servers.
- CIt enables better enforcement of database constraints.
- DIt reduces the number of application servers needed.
3What role does a hash function play in a distributed caching system?
- AIt ensures consistent cache invalidation.
- BIt determines which cache server stores specific data.
- CIt manages the redundancy of cache servers.
- DIt calculates the expiration time for cached data.
4What type of caching architecture keeps the cache local to application servers?
- AIndependent caching fleet.
- BIntegrated caching within application servers.
- CHybrid caching model.
- DDisk-based caching system.
5What is the "celebrity problem" in caching?
- ADifficulty in caching data for infrequently accessed keys.
- BHigh traffic to specific cached data causing uneven load distribution.
- CInability to cache frequently updated information.
- DIssues with redundancy in cached data.
6What is a significant concern when dealing with a cold-start cache problem?
- ACache data not invalidating properly.
- BHigh initial traffic hitting the database until the cache is warmed up.
- CInability to scale the cache horizontally.
- DExpired cache entries causing stale data.
7Why is setting an appropriate expiration policy for cached data important?
- ATo ensure the database schema remains consistent.
- BTo balance between data freshness and cache effectiveness.
- CTo allow caching of frequently updated data.
- DTo reduce the need for redundancy in the cache.
8What type of applications benefit the most from caching?
- AApplications with frequent write operations.
- BApplications with a high read-to-write ratio.
- CApplications requiring real-time data consistency.
- DApplications with low user traffic.
9What is one approach to mitigate the cold-start problem in caching?
- AUsing a write-through caching strategy.
- BPreloading the cache with historical data or simulated traffic before deployment.
- CShortening the cache expiration time.
- DDisabling caching temporarily.
Informações
- Descrição
- Explore caching strategies for high-performance, scalable systems. Learn how caching reduces database load, the importance of cache expiration policies, and solutions for challenges like the cold-start and celebrity problems. Discover best practices for implementing distributed caching layers effectively.
- Autor
- Eladio Rocha
- Idioma
- Español
- Visualizações
- 31
- Histórico
- Criado em 2 dez 2024 · atualizado em 2 dez 2024
- Etiquetas
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