Q39 — AWS SAA-C03 Ch.17

Question 39 of 89 | ← Chapter 17

Q1339. A data science storage for nightly log processing. The size and number of logs is unknown and will persist for 24 hours only.What is the MOST cost-effective solution?

Correct Answer: B. Amazon S3 Standard

Explanation

Let's analyze each option based on the requirements of nightly log processing where the size and number of logs are unknown and the data will persist for only 24 hours:Option A: Amazon S3 Glacier Deep ArchiveAmazon S3 Glacier Deep Archive is designed for long - term archival of data that is rarely accessed and has a retrieval time of several hours. Since the logs in this scenario only need to persist for 24 hours and are likely to be accessed for processing during that time, this storage class is not suitable. It is optimized for very long - term, low - cost storage, not for short - term, frequently accessed data like these nightly logs.Option B: Amazon S3 StandardAmazon S3 Standard offers high durability, availability, and performance for frequently accessed data. It is well - suited for a wide range of use cases, including short - term data storage like these nightly logs. The logs will be stored for only 24 hours, and during this time, they may need to be accessed for processing. S3 Standard provides low - latency access, which is beneficial for log processing tasks. Additionally, since the storage duration is short, the cost implications of using S3 Standard are relatively low compared to other long - term storage options.Option C: Amazon S3 Intelligent - TieringAmazon S3 Intelligent - Tiering is designed to automatically move data between different access tiers (frequent access, infrequent access, etc.) based on usage patterns to optimize costs. However, for data that has a fixed and very short lifespan of only 24 hours, the intelligent tiering mechanism does not offer significant advantages. The data will not have enough time to benefit from being moved between tiers, and the overhead of managing the tiering process may not be justified for such a short - term storage requirement.Option D: Amazon S3 One Zone - Infrequent Access (S3 One Zone - IA) S3 One Zone - IA is designed for data that is infrequently accessed but requires rapid access when needed. It stores data in a single Availability Zone, which makes it less durable compared to other S3 storage classes that store data across multiple Availability Zones. For nightly logs that need to be processed within 24 hours, the reduced durability of S3 One Zone - IA is a significant risk. Moreover, since the data is likely to be accessed during this 24 - hour period, it does not fit the "infrequent access" profile that S3 One Zone - IA is optimized for.Based on the above analysis, the most cost - effective solution for storing nightly logs that will persist for only 24 hours is Amazon S3 Standard.So, the answer is B.