Answer: Use the AWS Snow Family console to order several AWS Snowball Edge Storage Optimized devices. Use the devices to transfer the data to Amazon S3.

## Explanation Let's analyze each option: **Option A: Use Amazon S3 multi-part upload functionality to transfer the files over HTTPS.** - **Problem**: With a 100 Mbps internet connection, transferring 600 TB would take too long. - **Calculation**: 600 TB = 600 × 1024 GB = 614,400 GB = 4,915,200 Gb At 100 Mbps = 12.5 MB/s = 0.0125 GB/s Time required: 614,400 GB ÷ 0.0125 GB/s = 49,152,000 seconds ≈ 569 days This is far beyond the 2-week requirement. **Option B: Create a VPN connection between the on-premises NAS system and the nearest AWS Region.** - **Problem**: Same bandwidth limitation as Option A. A VPN connection still uses the existing 100 Mbps internet connection, so the transfer time would be the same ~569 days. **Option C: Use the AWS Snow Family console to order several AWS Snowball Edge Storage Optimized devices.** - **Correct choice**: AWS Snowball is specifically designed for large-scale data transfers when internet bandwidth is insufficient. - **Benefits**: 1. **Time**: Physical shipping is much faster than transferring over a 100 Mbps connection 2. **Cost-effective**: No need for expensive network upgrades 3. **Security**: Data is encrypted at rest and in transit 4. **Scalability**: Multiple Snowball devices can be used in parallel 5. **Meets deadline**: Can complete within 2 weeks **Option D: Set up a 10 Gbps AWS Direct Connect connection.** - **Problem**: While this would provide sufficient bandwidth (10 Gbps vs 100 Mbps), it's: 1. **Not cost-effective**: Direct Connect has high setup costs and monthly fees 2. **Time-consuming**: Setting up Direct Connect takes weeks to months 3. **Overkill**: For a one-time transfer of 600 TB, Snowball is more economical **Why Snowball is the best choice:** 1. **Bandwidth limitation**: 100 Mbps is insufficient for 600 TB in 2 weeks 2. **Cost optimization**: Snowball has predictable pricing per device with no long-term commitments 3. **Security**: Snowball provides 256-bit encryption for data at rest 4. **Time requirement**: Physical shipping can meet the 2-week deadline 5. **One-time transfer**: Snowball is ideal for one-time large data migrations **Additional considerations:** - Snowball Edge Storage Optimized devices can hold up to 80 TB each, so approximately 8 devices would be needed - AWS provides tracking and chain-of-custody documentation - Data transfer occurs offline, avoiding network congestion and security risks

Author: LeetQuiz Editorial Team