Caching Expert
How would you handle cache synchronization in a distributed environment?
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Synchronize caches by increasing cache size.
Use caching only for read-heavy workloads to avoid synchronization issues.
Use distributed locks and consensus protocols to ensure data consistency.
Synchronize caches by using different keys for each cache.
Name situations when to use different replacement strategies?
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Change the strategy based on server load only.
Use different strategies based on access patterns and data size.
Always use the same replacement strategy regardless of the situation.
Use the replacement strategy with the longest name.
What is cache replacement?
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Compressing cache data to save space.
Encrypting cache data for security purposes.
Backing up cache data to a secure location.
Replacing old data in the cache with new data.
What are some common cache writing strategies?
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Load balancing, failover, and redundancy.
Write-through, write-back, and write-around.
Compression, encryption, and replication.
Sharding, partitioning, and clustering.
Name some common scenarios when caching should be used.
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Caching is ideal for storing user passwords.
Caching should be used for frequently accessed data to reduce load times.
Caching helps in database schema design.
Caching is useful for encrypting sensitive information.
Describe the impact of cache size on performance.
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Increasing cache size reduces the need for server backups.
Cache size has no impact on system performance.
Smaller cache sizes always increase data retrieval speed.
Larger cache sizes generally improve performance by reducing cache misses.
Name some cache invalidation strategies.
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Time-to-live, write-through, and cache-aside.
Load balancing, failover, and clustering.
Compression, encryption, and decryption.
Sharding, replication, and partitioning.
What is cache invalidation?
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The action of encrypting cache data for security.
The process of expanding cache storage capacity.
The process of removing outdated data from the cache.
The method of backing up cache data to a secure location.
What is a cache miss?
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A scenario where data retrieval is slower than usual.
An event where requested data is not found in the cache.
An event where the database becomes unavailable.
A situation where the server fails to respond.
What is a cache key and how is it used?
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A password used for user authentication.
A tool for managing database connections.
A unique identifier used to store and retrieve cached data.
A special key used to unlock secure databases.
What is caching?
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A process of compressing data to save storage space.
A process of storing frequently accessed data in a temporary storage.
A method of securing data using encryption.
A technique to balance load among servers.