| Exam 300-115 | Question id=1336 | Layer 2 Technologies |
Which two protocols can be automatically negotiated between switches for trunking?
| A. |
PPP | |
| B. |
DTP | |
| C. |
ISL | |
| D. |
HDLC | |
| E. |
DLCI | |
| F. |
DOT1Q |
Switches such as the Catalyst 3550 that are capable of either 802.1Q or ISL trunking encapsulation, the switchport trunk encapsulation [dot1q | isl | negotiate] interface command must be used prior to the switchport mode trunk command.