AWS Solutions Architect Associate Practice Test

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Study for the AWS Solutions Architect Associate Test. Our comprehensive quiz offers multiple-choice questions that replicate the exam environment. Benefit from detailed explanations and hints. Prepare confidently for your AWS certification exam!

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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What is the file durability percentage in S3?

99.99%
99.999999999%
99%
100%

The correct answer is: 99.999999999%

Amazon S3 (Simple Storage Service) is designed with high durability and availability for storing and retrieving any amount of data. The specified durability percentage of 99.999999999%, which is often referred to as "11 nines," indicates that S3 is built to ensure that the data you store is highly reliable and protected against failure. This durability statistic means that if you store 10,000 objects in S3, you could potentially lose only 0.000000001 of an object over a given year. This extremely high durability is achieved through multiple mechanisms that include data replication across multiple devices and facilities within an AWS Region. Such architectural choices help in minimizing the risk of data loss due to hardware failures, human errors, or other potential threats. In comparison, other options reflect either lower durability levels or absolute guarantees which do not account for the potential of unforeseen events. While 100% durability seems ideal, no system can guarantee this level due to the complexities and potential risks involved. Therefore, the industry-accepted durability percentage for S3 is indeed 99.999999999%.