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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. Time to Live.






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






3. A Cisco router feature in which the router works to prevent SYN attacks either by monitoring TCP connections flowing through the router - or by actively terminating TCP connection until the TCP connection is established and then knitting the client-s






4. Clear To Send.






5. A message sent by a host when it wants to leave a group - addressed to the All Multicast Routers address 224.0.0.2.






6. An FRF standard for LFI for data (FRF.3) VCs.






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






8. Neighbor Advertisement.






9. A characterization of a BGP path attribute in which all BGP implementations must support and understand the attribute (well known) - and all BGP Updates must include the attribute (mandatory).






10. An address type in IPv6 networks that is used only on the local link and never beyond that scope.






11. A router that is allowed to receive a packet from an OSPF router and then forward the packet to another OSPF router.






12. Area 0; the area to which all other OSPF areas much connect in order for OSPF to work.






13. Designated router.






14. Pulse code modulation.






15. Used by WRED to calculate the maximum percentage of packets discarded when the average queue depth falls between the minimum and maximum thresholds.






16. The notation in a Cisco IOS IP routing table that identifies the route used by that router as the default route.






17. Data communications equipment.






18. A type of OSPF stub area for which neither external (type 5) LSAs are introduced - nor type 3 summary LSAs; instead - the ABRs originate and inject default routes into the area. External routes cannot be injected into a totally stubby area.






19. Dynamic ARP Inspection.






20. Committed information rate.






21. Policing in which a single rate is metered - and packets are placed into one of two categories (conform or exceed).






22. A T1 alarm state that occurs when the receiver can no longer consistently identify the frame. See LOF.






23. A routing protocol feature by which the routing update includes only routes that have changed - rather than include the entire set of routes.






24. Alternate Mark Inversion. A serial-line encoding standard that sends alternating positive and negative 3-volt signals for binary 1 - and no signal (0 V) for binary 0.






25. Jargon used to refer to the second of two buckets in the dual token bucket model; its size is Be.






26. A VC that is set up dynamically when needed. An SVC can be equated to a dial-on-demand connection in concept.






27. A logical concept that represents the path over which frames travel between DTEs. VCs are particularly useful when comparing Frame Relay to leased physical circuits.






28. For some encoding schemes - consecutive signals must use opposite polarity in an effort to reduce DC current. A BPV occurs when consecutive signals are of the same polarity.






29. Cisco Wireless LAN Solution Engine.






30. A routing protocol feature by which the routing update includes the entire set of routes - even if some or all of the routes are unchanged.






31. Data Carrier Detect.






32. Neighbor Discovery Protocol.






33. Policing in which two rates are metered - and packets are placed into one of three categories (conform - exceed - or violate).






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






35. A serial-line encoding standard that substitutes Bipolar Violations in a string of eight binary 0s to provide enough signal transitions to maintain synchronization.






36. Class Selector.






37. The IEEE standardized protocol for VLAN trunking.






38. Sending a message from a single source or multiple sources to selected multiple destinations across a Layer 3 network in one data stream.






39. 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.






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






41. Method by which a dense-mode routing protocol distributes multicast traffic from a source to all the segments of a network. Also called shortest-path tree (SPT) - because it uses the shortest routing path from the source to the segments of the networ






42. The process - defined by FRF.5 and FRF.8 - for combining ATM and FR technologies for an individual VC.






43. Frequency hopping spread spectrum.






44. An 802.1d STP port state in which the port does not send or receive frames - except for listening for received Hello BPDUs.






45. Receivers subscribe to an (S -G) channel when they request to join a multicast group. That is - they specify the unicast IP address of their multicast source and the group multicast address. SSM is typically used in very large multicast deployments s






46. Message sent by a PIM-DM router to its upstream router asking to quickly restart forwarding the group traffic; sent using the unicast address of the upstream router.






47. Multicast addresses that are not assigned by IANA.






48. A single label and link that is part of a complete LDP. See also label switched path.






49. Internet Group Management Protocol.






50. A table used by CEF that holds information about adjacent IP hosts to which packets can be forwarded.