Which three options are features of GRE? (Choose three.)

Last Updated: Jun 29, 2026
IT Exam Items Repository › Category: CCNP ENARSI v9 › Which three options are features of GRE? (Choose three.)

Which three options are features of GRE? (Choose three.)

  • multicast support
  • Dynamic MPLS configuration
  • low CPU usage
  • can be used with IPsec VPNs
  • QoS capabilities
  • provides cryptographic traffic protection

Explanation: GRE is a versatile protocol that supports IP multicast and non-IP protocols, allowing for the use of dynamic routing protocols across tunnels. It is frequently combined with IPsec because GRE alone provides no cryptographic protection,. Additionally, because GRE tunnels use standard Cisco IOS interfaces, they can offer finer-grained QoS features compared to other tunneling methods.

Related exam: Checkpoint Exam: MPLS and VPN Technologies

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