Which PPP subprotocol negotiates authentication options?
A.
NCP
B.
ISDN
C.
SLIP
D.
LCP
E.
DLCI
Explanation:
The PPP Link Control Protocol (LCP) is documented in RFC 1661. LPC negotiates link and PPP
parameters to dynamically configure the data link layer of a PPP connection. Common LCP
options include the PPP MRU, the authentication protocol, compression of PPP header fields,
callback, and multilink options.