Installing SP2 on Clustered SS2016 Enterprise

We're currently running the RTM version and I'm looking to install SP2. Couple of questions that I couldn't find definitive answers for:

1. Can I install SP2 directly, or do I need to first install SP1?
2. Where are the instructions to install the service pack on a cluster to avoid unnecessary downtime? I found directions for SQL Server 2008 and 2012, but nothing newer. The procedure for 2008 requires removing owned services from passive nodes before installation, whereas the 2012 appears to be just install the SP on passive node, restart, then fail over and install on other node, then restart that node. Is the latter procedure correct for 2016?

Thanks!