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Per Mixpanel + Amplitude docs, an IDENTITY-RESOLUTION step in analytics joins which?
ADisk sector reads stitched to memory pages only
BCPU register state stitched to GPU register state
CDNS lookups stitched to TLS handshakes only
DPre-signup anonymous IDs with post-signup user IDs
Answer & Solution
Correct answer: D. Pre-signup anonymous IDs with post-signup user IDs
Mixpanel `identify()` / Amplitude `setUserId()`: stitches the anon `device_id` lineage to the new account so funnels survive signup.
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