Which three Layer 2 encapsulation types would be used on a WAN rather than a LAN? (Choose three.)（）

A.a directly connected interface with an address of 192.168.10.254/24
B.a static route to network 192.168.10.0/24
C.a RIP update for network 192.168.10.0/24
D.an OSPF update for network 192.168.0.0/16
E.a default route with a next hop address of 192.168.10.1
F.a static route to network 192.168.10.0/24 with a local serial interface configured as the next hop

A.A CSU/DSU terminates a digital local loop.
B.A modem terminates a digital local loop.
C.A CSU/DSU terminates an analog local loop.
D.A modem terminates an analog local loop.
E.A router is commonly considered a DTE device.
F.A router is commonly considered a DCE device.

A.Switches are primarily software based while bridges are hardware based.
B.Both bridges and switches forward Layer 2 broadcasts.
C.Bridges are frequently faster than switches.
D.Switches have a higher number of ports than most bridges.
E.Bridges define broadcast domains while switches define collision domains.
F.Both bridges and switches make forwarding decisions based on Layer 2 addresses.