If you are preparing for a Caching interview, Must go through these questions series.Here you will find latest interview Questions and answers on Caching Frameworks and tools.
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A web cache is a temporary storage of static resources like images, .js, CSS files or multimedia file on users browsers cache so it reduces server lag.
Cache memory is fastest memory that is used by CPU.It used as buffer between RAM and the CPU and helps to reduce the average cost or time to access data from the main memory.
Saving images in cache android helps your application runs faster. You can use the LRUCache Algorithm to cache images or static resources in android.
Caching in Java is a technique to store frequently accessed server data locally. Caching helps us to decrease load time and also reduce calls to database servers.
Caching helps our app to decrease server round trips for fetching data from the database by saving or persisting frequently used data in memory.
Asp.net supports five types of Caching are
Fragment caching is the caching of a specific portion or part of web page user controls. It helps us to cache subset of pages.
Output Caching allows us to cache the output or response of a specific action of a controller. It helps us to improve the speed of data transfer.
Caching in rest API helps us to cache the get API's so data on website or mobile app loads faster.
VaryByParam is a parameter of caching objects that tells how to do caching.
By default, the cache is stored on Web Server, proxy servers or users browser.
There are 3 different types of cache memory that are graded in levels L1, L2, and L3 cache.
Redis is free software, the data structure stored in memory, used as a broker for databases, caches, and messages. It actually supports data structures such as with strings, hashes, lists, sets, range query sorted sets, bitmaps, hyper logs, radius query and streams geospatial indexes.
Memcached is a memory caching system used to optimize dynamic database-driven webpages by caching data in RAM to minimize the memory calls to external data. It is free and open-source software, licensed under the Revised BSD license, and runs on Unix-like operating systems and on Microsoft Windows and also, it depends on the lib-event library.
Memcached's APIs supply a very huge hash table distributed across various machines and when the table is full, subsequent inserts cause older data to be purged in the least recently used (LRU) order in addition to that, applications using Memcached typically layer requests and additions into RAM before falling back on a slower backing store.
RabbitMQ is an open-source message broker. It is used worldwide at small startups and large enterprises from T-Mobile to Runtastic. It is easily deployed on-premises and in the cloud that supports multiple messaging protocols because it is light weighted. RabbitMQ is running on many operating systems and cloud environments and provides a wide range of developer tools for the most popular languages. It gives a common safe platform for your applications to send and receive messages that act as an intermediary for messaging.