Exam AWS Certified Solutions Architect - Associate SAA-C03 topic 1 question 6 discussion

Let's analyse this: B. On a Snowball Edge device you can copy files with a speed of up to 100Gbps. 70TB will take around 5600 seconds, so very quickly, less than 2 hours. The downside is that it'll take between 4-6 working days to receive the device and then another 2-3 working days to send it back and for AWS to move the data onto S3 once it reaches them. Total time: 6-9 working days. Bandwidth used: 0. C. File Gateway uses the Internet, so maximum speed will be at most 1Gbps, so it'll take a minimum of 6.5 days and you use 70TB of Internet bandwidth. D. You can achieve speeds of up to 10Gbps with Direct Connect. Total time 15.5 hours and you will use 70TB of bandwidth. However, what's interesting is that the question does not specific what type of bandwidth? Direct Connect does not use your Internet bandwidth, as you will have a dedicate peer to peer connectivity between your on-prem and the AWS Cloud, so technically, you're not using your "public" bandwidth. The requirements are a bit too vague but I think that B is the most appropriate answer, although D might also be correct if the bandwidth usage refers strictly to your public connectivity.

As using the least possible network bandwidth.

The least possible network bandwidth says it all

B is Correct Answer

The question states that the storage is no longer growing. This implies that we don’t need to make any kind of data synchronization. Additionally, the total storage is 70 TB, which is a large amount of data. This implies high transfer costs. So, we can discard A, C and D options. Correct option: A. A Snowball device is a physical storage device which supports large data transfers. It is commonly used for transporting huge amounts of data from on-premises to AWS. Concretely, Snowball Edge is suitable for data transfers up to 80 TB. The transport times are between 1 and 2 weeks, so in case that we have hundreds of terabytes of data, we get them earlier than using Internet. In case that we need to transfer petabytes of data, it is recommended to use AWS Snowmobile, which is a physical track that transports data, up to 10 PB.

B is the correct answer

I choose B The key is: - The total storage is 70 TB and is no longer growing. - Using the least possible network bandwidth. No longer Growing mean 1 time migrate, no need file gw Least Possible Nw Bandwith --> Snowball Edge

Ans B. Agree: Snowball Edge is designed for these types of operations; its more robust and secure because the operation is completed (relatively) quickly. Ans C doesn't really fly.

Select answer: B Why? The essence of the S3 File Gateway is to provide a seamless interface for on-premises apps to store and retrieve data in Amazon S3 using standard protocols such as NFS and SMB. On the other hand, As I write this, the first AWS Official use case for Snowball is to migrate data especially when network conditions are limited. The question is a bit tricky. But applying simple logical linguistic analysis, "as soon as possible" coupled with "the least network bandwidth possible" means the question's focal point is network bandwidth. So, whatever the least network bandwidth is, it`s corresponding time to get the data into AWS S3 bucket is the value for "as soon as possible".

Snowball transfers data faster than the internet, and in this case, as the size of the data is large, so this would be the best option

Question specifically mentions minimal use of Network bandwidth. Storage gateway are mostly for using cloud storage on-premises. Usually data is copied one time using DataSync or other services like Snow devices.

Minimising network bandwidth

B for sure

Through Snowball edge, large amount of data can be transferred to AWS faster and securely.

B is the only solution which satisfies the bandwidth requirement.

B seems to be the correct answer

A would be way too long + bandwidth usage C would use bandwidth D would take several weeks For me, B is the lesser evil