| Exam 400-101 | Question id=1666 | Layer 2 Technologies |
Which two statements about Cisco HDLC are true?
| A. |
Cisco HDLC is the default encapsulation on Serial and Dialer interfaces. | |
| B. |
Cisco HDLC supports authentication of peering routers on the same HDLC link. | |
| C. |
Cisco HDLC allows bundling of multiple links between the same pair of routers into a faster communication channel. | |
| D. |
Cisco routers can carry multiple network-layer protocols simultaneously over the same HDLC link. | |
| E. |
Cisco HDLC allows routers to negotiate the supported network-layer protocols before sending their packets over an HDLC link. | |
| F. |
Cisco HDLC is the preferred protocol in multivendor environments. |