One thing that seems to cause a lot of problems for candidates taking this exam is that Microsoft expects you to be able to configure both IPv4 and IPv6 addressing. This includes being subnetting and supernetting. You should also know how to use both address types within the context of various network services such as DNS and DHCP.
This exam also focuses heavily on remote networking. It isn’t enough to know how to install and configure RRAS. You should also know how Network Access Protection (NAP) works. Finally, be prepared for a question or two dealing with wireless networks.