Which of the following protocols is used to encapsulate other network layer protocols such as multicast and IPX over WAN connections?
A. MPLS
B. ESP
C. GRE
D. PPP
CompTIA exam questions
Which of the following protocols is used to encapsulate other network layer protocols such as multicast and IPX over WAN connections?
A. MPLS
B. ESP
C. GRE
D. PPP