Yes, it is required to pass Part I to start Part II, as far as I know. Part II is retrieved by going to https://www.certmanager.net/sun_assignment/ and downloading the assignment from your profile, though I believe that you may need to contact Prometric to get permission prior to attempting this (due to needing to have a voucher for the exam).
Theodore Jonathan Casser
SCJP/SCSNI/SCBCD/SCWCD/SCDJWS/SCMAD/SCEA/MCTS/MCPD... and so many more letters than you can shake a stick at!
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