Overlay Tunnels (ENCOR/CCNP Quiz) 1. Which of the following commands are optional for GRE configuration? (Choose two.) tunnel source {ip-address | interface-id} tunnel destination ip-address tunnel mode gre {ip | ipv6} keepalive 2. Which of the following is the message exchange mode used to establish an IKEv1 IPsec SA? Main mode Quick mode Aggressive mode CREATE_CHILD_SA 3. LISP separates IP addresses into which of the following? (Choose two.) EIDs Subnets and hosts RLOCs LISP entities 4. Which of the following are encryption protocols that should be avoided? (Choose two.) DES 3DES GMAC AES GCM 5. True or False: The VXLAN specification defines a data plane and a control plane for VXLAN. TRUE FALSE 6. 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 Connected interfaces Loopback interfaces The GRE tunnel IP address 7. What is the destination UDP port used by the LISP data plane? 4143 4341 4342 4142 8. True or false: ETRs are the only devices responsible for responding to map requests originated by ITRs. TRUE FALSE 9. Which of the following are modes of packet transport supported by IPsec? (Choose two.) Tunnel mode Transport mode Crypto mode Transparent mode 10. GRE was originally created to provide transport for non-routable legacy protocols. TRUE FALSE Loading … Written by