Does the 3850 with 10 Gig ports use Cut-through or Store-and-Forward?
If it does use one or the other, can it be changed?
What is the command to check what is using?
The 3850 uses Store-and-Forward switching method. You couldn't change the method in 3850.
You can change switching method in switches that use cut-through switching like Nexus 5000 series with below command in global configuration mode.
hardware ethernet store-and-fwd-switching
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