What are three characteristics of IPsec? (Choose three.)
- data integrity
- encapsulation of a number of network layer protocols
- implementation at the transport layer
- origin authentication
- data confidentiality
- forwarding of duplicated packets
Explanation: IPsec is implemented at the internet layer, not at the transport layer. GRE can encapsulate a number of network layer protocols, whereas IPsec only encapsulates IP packets. IPsec provides anti-replay protection which drops late and duplicated packets.
Exam with this question: Chapter 20: Quiz - Securing DMVPN Tunnels CCNPv8 ENARSI
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