AWS (Amazon Web Services) Certification Practice Exam

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Dive into the AWS Certification Exam with our comprehensive quiz. Challenge yourself with multiple-choice questions designed to mimic the exam format. Each question includes detailed explanations to boost your understanding and help you ace your AWS Certification!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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Why is caching beneficial for databases as mentioned in the text?

It increases the physical size of the database
It reduces the dependency on permanent data stores
It guarantees data integrity during storage
It eliminates the need for data replication

The correct answer is: It reduces the dependency on permanent data stores

Caching is beneficial for databases because it significantly reduces the dependency on permanent data stores. When data is frequently accessed, retrieving it from the primary data store can lead to performance bottlenecks due to latency, leading to slower response times for end users. By implementing caching, frequently requested data can be stored temporarily in memory, allowing for rapid access without the overhead of querying the database every time. This reduction in dependency on the permanent data store not only speeds up data retrieval but can also minimize the load on the database, leading to improved overall performance and scalability. Since cached data is readily available, applications can serve user requests faster, which is especially critical for high-traffic websites or applications where performance is key. The other options do not accurately reflect the primary advantages of caching. For instance, while they may mention aspects related to data storage and replication, they do not directly address the core reason why caching enhances database performance and efficiency.