Exam AWS Certified Solutions Architect - Professional SAP-C02 topic 1 question 302 discussion

I'll go with B as 10G direct connection is faster than enough for workload not so big. EFS and DataSync are feasible as well.

B is correct. Let's assume, the total data to transfer is 22,240 GB (120 VMs × 100 GB [each estimated average size] = 12,000 GB and 10,240 GB for NFS data). Using a 10 Gbps Direct Connect link, the theoretical transfer speed is 1.25 GB/s, and accounting for 80% efficiency due to overhead, the effective speed is 1.0 GB/s. The estimated transfer time is 22,240 GB ÷ 1.0 GB/s = 22,240 seconds, or about 6.18 hours. Therefore, the migration can be completed in approximately 6 hours and 10 minutes, leveraging high-speed connectivity and efficient AWS migration services. A, C, and D are incorrect: A and D involve longer migration times due to delays from physical shipment and multiple processing steps, while C is incorrect because a manual process would take significantly longer than automated migration tools.

Option B is the best solution because it: • Uses AWS Application Migration Service (also known as Storage Gateway), which is designed for high-speed and low-latency data transfer between on-premises infrastructure and AWS. • Replicates the VMs with all their software packages installed, ensuring a complete migration with no additional configuration required. • Creates an Amazon EFS file system to store the NFS server data, which is a highly available and scalable file storage service that can be easily scaled up or down as needed. • Uses AWS DataSync to copy the NFS server data from the on-premises infrastructure to the EFS file system over the Direct Connect connection. This approach ensures a complete and fast migration of all VMs and data to AWS, with minimal downtime and configuration required.

Ans D. The questions states "The VMs have many different operating systems and many custom software packages installed". However, the AWS AMS supports only limited and commonly used OSes and apps. Q: What operating systems and applications are supported by AWS Application Migration Service? AWS Application Migration Service allows you to migrate physical, virtual, and cloud source servers to AWS for a variety of supported operating systems (OS). AWS Application Migration Service supports commonly used applications such as SAP, Oracle, and Microsoft SQL Server. https://aws.amazon.com/application-migration-service/faqs/#:~:text=AWS%20Application%20Migration%20Service%20allows,Oracle%2C%20and%20Microsoft%20SQL%20Server.

A is too time-consuming. B is viable C is viable, but overengineered as the DC connection has enough capacity.

10Gbps = 1.25GB/s = 4.5TB/H

B is the right answer

Option B. 10 Gbps AWS Direct Connect connection

B, 13mins to transfer 10tb

Option B. 10 Gbps AWS Direct Connect connection

Option D is the correct answer by using Snowball Edge each have 80TB capacity. A - Does not make sense to use only 1 Snowball Edge, also NFS to NFS server in EC2 it is not correct! Use AWS EFS B - Using Replication will be slow, there is not parellasim especially with additional NFS data transfer C - Install required software, as it is custom software, it may be time consuming os 120 VMs