Ccna certification Practice Tests

C.  Connections between two or more corporate locations

D.  Connection internally inside of a service provider’s network

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Chapter 1 

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  Network Fundamentals (Domain 1) 

13

 49.  Which WAN connectivity technology is always configured in a hub-and-spoke topology?

A. IPsec

B. MPLS

C. DMVPN

D.  Metro Ethernet

 50.  Which sub-protocol inside of the PPP suite is responsible for authentication?

A. MPLS

B. NCP

C. LCP

D. ACP

 51.  Which encapsulation protocol is used with PPP to transmit data over serial links?

A. PPPoE

B. HDLC

C. MPLS

D. X.25

 52.  Which authentication method used with PPP uses a nonce (random number) to hash the 

password and prevent replay attacks?