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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. A BGP feature by which a router learns iBGP routes - and then forwards them to other iBGP peers - reducing the required number of iBGP peers while also avoiding routing loops.






2. The structure inside telcos' original digital circuit build-out in the mid-1900s - based upon using TDM to combine and disperse smaller DS levels into larger levels - and vice versa.






3. Another term for summary route.






4. Frame Relay Forum.






5. Each 802.11 station passively monitors each RF channel for a specific amount of time and listens for beacons. Stations use the signal strengths of found beacons to determine the access point or ad hoc network with which to attempt association.






6. Cisco-proprietary STP feature in which an access layer switch is configured to be unlikely to become Root or to become a transit switch. Also - convergence upon the loss of the switch's Root Port takes place in a few seconds.






7. A 3-bit field in an 802.1Q header used for marking frames.






8. The portions of PPP focused on features that are related to specific Layer 3 protocols.






9. This term has two BGP-related definitions. First - it is the normal process in which a router - before sending an Update to an eBGP peer - adds its local ASN to the beginning of the AS_PATH path attribute. Second - it is the routing policy of purpose






10. A message that each host sends - either in response to a router Query message or on its own - to all multicast groups for which it would like to receive multicast traffic.






11. From the perspective of one routing protocol - a route that was learned by using route redistribution.






12. Congestion window.






13. The second most significant bit in the most significant byte of an Ethernet MAC address - a value of binary 0 implies that the address is a Universally Administered Address (UAA) (also known as Burned-In Address [BIA]) - and a value of binary 1 impli






14. Another name for Superframe.






15. The speed at which the access link is clocked. This choice affects the price of the connection and many aspects of traffic shaping and policing - compression - quality of service - and other configuration options.






16. An IP variable that defines the largest size allowed in an IP packet - including the IP header. IP hosts must support an MTU of at least 576 bytes.






17. PIM-SM is a method of routing multicast packets that requires some intelligence in the network about the locations of receivers so that multicast traffic is not flooded into areas with no receivers. PIM Sparse Mode gets its name from the assumption t






18. Tag Distribution Protocol.






19. An 802.1w RSTP port state in which the port is not forwarding or receiving; covers 802.1d port states disabled - blocking - and listening.






20. An OSPF router that connects to the backbone area and to one or more non-backbone area.






21. 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.






22. 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.






23. Dynamic ARP Inspection.






24. An IPv6/IPv4 tunneling method that allows isolated IPv6 domains to be connected over an IPv4 network.






25. With routing protocols - the process by which the router receiving a routing update determines if the routing update came from a trusted router.






26. A switch feature in which the switch examines DHCP messages and - for untrusted ports - filters all messages typically sent by servers and inappropriate messages sent by clients. It also builds a DHCP snooping binding table that is used by DAI and IP






27. 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.






28. Edge LSR.






29. Designated router.






30. Defined in RFC 1631 - a method of translating IP addresses in headers with the goal of allowing multiple hosts to share single public IP addresses - thereby reducing IPv4 public address depletion.






31. A term referring to the MQC service-policy command - which is used to enable a policy map on an interface.






32. An FRF standard for LFI for VoFR (FRF.11) VCs - in which all voice frames are interleaved in front of data frames' fragments.






33. 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.






34. Switched virtual circuit.






35. Protocol Independent Multicast dense-mode routing protocol.






36. A strategy for subnetting a classful network for which masks/prefixes are different for some subnets of that one classful network.






37. An 802.1d STP port state in which the port sends and receives frames.






38. The process of changing the electrical characteristics on a transmission medium - based on defined rules - to represent data.






39. Distance Vector Multicast Routing Protocol.






40. In shaping and policing - the definition of parameters that together imply the allowed rate and bursts.






41. Smoothed Round-Trip Time.






42. An NTP client that assumes that a server will send NTP broadcasts - removing the requirement for the client to have the NTP server's IP address preconfigured.






43. Discard Eligible.






44. Weighted round-robin.






45. Wired Equivalent Privacy.






46. An early T1 framing standard.






47. Direct sequence spread spectrum.






48. One-time password.






49. Aka receiver's advertised window.






50. Multicast Open Shortest Path First.