Given the configurations on SwitchA and SwitchB, which two statements are true? (Choose two.)
A.
The trunk is currently using the ISL trunking protocol.
B.
The trunk is currently using the 802.1q trunking protocol.
C.
By default, the trunk can only support one VLAN, and only that single VLAN is transmitted
across the trunk.
D.
By default, all VLANs will be transmitted across this trunk.
E.
By default, SwitchA and SwitchB’s Fast Ethernet 0/1 port will not generate DTP messages.
Explanation:
The “switchport mode trunk” command sets the interface to be a trunk, while the “switchport trunk
encapsulation dot1q” command specifies that 802.1q should be used, not ISL. By default, all
VLANs are allowed to traverse a trunk link. To limit specific VLANs to cross the trunk, VLAN
pruning would need to be configured.