WCNA Exam Question 31
All packets that contain UDP or TCP headers are counted in the IP Protocol Types statistic.
WCNA Exam Question 32

The image depicts eight files that are part of a file set.
WCNA Exam Question 33
IP routers strip off the MAC header of incoming packets and apply a new MAC header before forwarding the packet onto the next network.
WCNA Exam Question 34
A TCP Acknowledgment Numberfield that is never incremented by a host after the TCP handshake indicates that no data is being received by that host.
WCNA Exam Question 35
TCP data is sequenced and acknowledged to ensure delivery.