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