A logistics company needs to migrate 80\text{ TB} of historical shipping data from their o… — AWS Certified Cloud Practitioner

A logistics company needs to migrate $80\text{ TB}$ of historical shipping data from their on-premises server room to Amazon S3. The company has a limited network connection of $10\text{ Mbps}$ and wants to complete the transfer as quickly and cost-effectively as possible. Which AWS service should the company use to perform this data migration?

AWS Snowball Edge Storage OptimizedAnswer
B
AWS Storage Gateway (Volume Gateway)
C
Amazon S3 Glacier Flexible Retrieval
D
Amazon Elastic File System (Amazon EFS)

Answer

AWS Snowball Edge Storage Optimized

AWS Snowball Edge Storage Optimized is the correct service because it uses a physical storage appliance shipped directly to the customer's on-premises location. The data is copied over a local high-speed network and then shipped back to AWS, bypassing the slow

10\text{ Mbps}

internet link entirely.

Step-by-Step Solution

Calculate the theoretical transfer time for sending the data over the network.

The time required to transfer

80\text{ TB}

of data over a

10\text{ Mbps}

connection is approximately

740

days.

To determine if a network-based transfer is feasible. The formula is:

\text{Time} = \frac{\text{Total Data}}{\text{Network Bandwidth}} = \frac{80\text{ TB} \times 8 \times 10^{12}\text{ bits}}{10 \times 10^6\text{ bits/second}} \approx 6.4 \times 10^7\text{ seconds} \approx 740.7\text{ days}

Evaluate the available AWS migration services for offline data transfer.

AWS Snowball Edge Storage Optimized is identified as the optimal tool.

Since a network transfer is highly impractical (taking more than

2

years), an offline, physical media transfer service is required to securely and rapidly migrate the dataset.

Key Concept

AWS Snow Family provides physical devices to transfer large amounts of data offline when network bandwidth is limited.

Question

Answer

Step-by-Step Solution

Key Concept

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