Which two of these functions do routers perform on packets? (Choose two.)
A.
Examine the Layer 2 headers of inbound packets and use that information to determine the
next hops for the packets
B.
Update the Layer 2 headers of outbound packets with the MAC addresses of the next hops
C.
Examine the Layer 3 headers of inbound packets and use that information to determine the
next hops for the packets
D.
Examine the Layer 3 headers of inbound packets and use that information to determine the
complete paths along which the packets will be routed to their ultimate destinations
E.
Update the Layer 3 headers of outbound packets so that the packets are properly directed to
valid next hops
F.
Update the Layer 3 headers of outbound packets so that the packets are properly directed to
their ultimate destinations
http://www.freeccnastudyguide.com/study-guides/ccna/ch4/ip-routing/
Layer 2 datalink (MAC, PPP, hdlc)
Layer 3 network (IP, ICMP)
2mac hop
3 IN hop