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CCIE Vocab

Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Timer An STP timer that dictates how long a port should stay in the listening state and the learning state.






2. A message sent by a multicast router - by default every 125 seconds - on each of its LAN interfaces to determine whether any host wants to receive multicast traffic for any group.






3. Quantum value.






4. An attack similar to a smurf attack - but using packets for the UDP Echo application instead of ICMP.






5. A name used for DS3 lines inside the North American TDM hierarchy.






6. Cisco IOS Embedded Event Manager - a feature that monitors events on a router and reports their results. Principally intended to increase availability - EEM provides flexible - granular detection and alerting functions.






7. Data Carrier Detect.






8. A characterization of a BGP path attribute in which BGP implementations are not required to support the attribute (optional) - and for which if a router receives a route with such an attribute - the router should forward the attribute unchanged (tran






9. A BGP router in an AS that uses route reflectors - but that is not aided by any RR server.






10. Neighbor Advertisement.






11. A BGP process by which a router reapplies routing policy configuration (route maps - filters - and the like) based on stored copies of sent and received BGP Updates.






12. A logical group of content engines running WCCP between them. The lead content engine determines the traffic distribution within the cluster - for optimum performance and scalability.






13. Multicast addresses that are not assigned by IANA.






14. The one VLAN on an 802.1Q trunk for which the endpoints do not add the 4-byte 802.1Q tag when transmitting frames in that VLAN.






15. With routing protocols - the measurement of favorability that determines which entry will be installed in a routing table if more than one router is advertising that exact network and mask.






16. An 802.1w RSTP port state in which the port is not the Root Port but is available to become the root port if the current root port goes down.






17. A message sent by a multicast router - by default every 125 seconds - on each of its LAN interfaces to determine whether any host wants to receive multicast traffic for any group.






18. A NAT term describing the process of multiplexing TCP and UDP flows - based on port numbers - to a small number of public IP addresses. Also called NAT overloading.






19. A Cisco-proprietary feature by which multiple routers can provide interface IP address redundancy - as well as cause a set of clients to load-balance their traffic across multiple routers inside the GLBP group.






20. A specification for the 64-bit interface ID in an IPv6 address - composed of the first half of a MAC address - hex FFFE - and the last half of the MAC.






21. From one multicast router's perspective - the upstream router is another router that has just forwarded a multicast packet to that router.






22. Address Resolution Protocol. Defined in RFC 826 - a protocol used on LANs so that an IP host can discover the MAC address of another device that is using a particular IP address.






23. The MD5-encoded password defined by the enable secret command.






24. A Cisco IOS queuing tool most notable for its scheduler - which always services the high-priority queue over all other queues.






25. Autonomous System Boundary Router. An OSPF router that redistributes routes from some other source into OSPF.






26. The portion of PPP focused on features that are unrelated to any specific Layer 3 protocol.






27. In OSPF - a router that is prepared to take over the designated router.






28. The 802.1X driver that supplies a username/password prompt to the user and sends/receives the EAPoL messages.






29. A term referring to how a router views a BGP peer relationship - in which the peer is in another AS.






30. Inside telcos' original TDM hierarchy - a unit that combines multiple DS0s into a single channel






31. Defines a particular behavior for FTP regarding the establishment of data TCP connections. In active mode - the FTP client uses the FTP PORT command - over the FTP control connection - to tell the FTP server the port on which the client should be lis






32. Advanced Encryption Standard A superior encryption mechanism that is part of the 802.11i standard and has much stronger security than TKIP.






33. The feature in a Cisco IOS device by which a terminal session's previously typed commands are remembered - allowing the user to recall the old commands to the command line through a simple key sequence (for example - the up-arrow key).






34. A Cisco IOS queuing tool most notable for its reservation of a minimum bandwidth for each queue.






35. With EIGRP - for a particular route - the case in which the RD is lower than the FD.






36. Defined in IEEE 802.1d - a protocol used on LAN bridges and switches to dynamically define a logical network topology that allows all devices to be reached - but prevents the formation of loops.






37. Access Control Entry. An individual line in an ACL.






38. Priority queue and priority queuing.






39. Network Layer Protocol ID is a field in the RFC 2427 header that is used as a Protocol Type field in order to identify the type of Layer 3 packet encapsulated inside a Frame Relay frame.






40. A Cisco-proprietary feature. After a Cisco multicast router receives IGMP Join or Leave messages from hosts - it communicates to the connected Cisco switches - telling them which hosts (based on their unicast MAC addresses) have joined or left each m






41. A Cisco switch feature that permits limiting traffic arriving at switch ports by percentage or absolute bandwidth. Separate thresholds are available per port for unicast - multicast - and broadcast traffic.






42. With EIGRP - a router sharing the same primary subnet - with which Hellos are exchanged - parameters match - and with which routes can be exchanged.






43. Virtual Routing and Forwarding table.






44. Link-state advertisement.






45. Designated router.






46. The original MPLS protocol used to advertise the binding (mapping) information about each particular IP prefix and associated label. It is slightly different from LDP - but functionally equivalent. See also LDP.






47. With EIGRP - the metric value for the lowest-metric route to a particular subnet.






48. Out of Frame.






49. With OSPF - the encapsulation of OSPF messages inside IP - to a router with which no common subnet is shared - for the purpose of either mending partitioned areas or providing a connection from some remote area to the backbone area.






50. Defines a particular behavior for FTP regarding the establishment of TCP data connections. In passive mode - an FTP server uses the FTP PORT command - over the FTP control connection - to tell the FTP client the port on which the server will be liste