Overlay Tunnels (ENCOR/CCNP Quiz) 1. Which of the following UDP ports is the UDP port officially assigned by the IANA for VXLAN? 4987 8472 4789 8947 2. Which of the following is the message exchange mode used to establish an IKEv1 IPsec SA? Main mode Aggressive mode CREATE_CHILD_SA Quick mode 3. Which of the following should not be dynamically advertised via an IGP into a GRE tunnel? The GRE tunnel source interface or source IP address Loopback interfaces Connected interfaces The GRE tunnel IP address 4. True or false: ETRs are the only devices responsible for responding to map requests originated by ITRs. FALSE TRUE 5. LISP separates IP addresses into which of the following? (Choose two.) RLOCs LISP entities Subnets and hosts EIDs 6. Which of the following commands are optional for GRE configuration? (Choose two.) keepalive tunnel mode gre {ip | ipv6} tunnel source {ip-address | interface-id} tunnel destination ip-address 7. True or False: The VXLAN specification defines a data plane and a control plane for VXLAN. FALSE TRUE 8. What is the destination UDP port used by the LISP data plane? 4142 4342 4143 4341 9. Which of the following are modes of packet transport supported by IPsec? (Choose two.) Crypto mode Transparent mode Transport mode Tunnel mode 10. GRE was originally created to provide transport for non-routable legacy protocols. FALSE TRUE Loading … Written by