Which connection uses the default encapsulation for serial interfaces on Cisco routers?
A.
The serial connection to the NorthCoast branch office.
B.
The serial connection to the North branch office.
C.
The serial connection to the Southlands branch office.
D.
The serial connection to the Multinational Core.
Explanation:
192.168.0.1 255.255.255.252
The default serial encapsulation on Cisco routers is Cisco HDLC, so it does not need to be explicitly configured on the router.
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From the output of “show running-config” command we learn that interface S1/1 does not declare any encapsulation -> It uses the default encapsulation HDLC.
Note: High-Level Data Link Protocol (HDLC) is the default WAN encapsulation for Cisco routers.
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show frame-relay map
show running
Show IP Route
show ip eigrp int
show ip eigrp neighbors
show ip ospf
show ip ospf int
show interface
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North has no encapsulation command, so the default encapsulation is used
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