Two migration needs: (a) 500 TB over a slow, congested link — bandwidth math says months; (b) 20 TB on a decent connection that must sync repeatedly until cutover. Which services fit each?
A.DataSync for (a), Snowball for (b)
Roles reversed — DataSync needs usable bandwidth.
B.Snowball Edge for (a) — offline bulk transfer; DataSync for (b) — online incremental sync
Correct. Physical for huge/slow-link data; online sync for repeated deltas.
C.S3 Transfer Acceleration for both
Acceleration speeds uploads but still bounded by the same link.
D.Direct Connect for both
DX takes weeks to provision and doesn't change transfer volume.
Why this answer
The offline/online split is the exam pattern: Snowball Edge ships physical devices for massive transfers where the network is the bottleneck; DataSync handles ongoing online transfers with incremental sync — ideal for repeated deltas until cutover.
Correct answer: B · Last reviewed 2026-10-28
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