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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. An IPv6/IPv4 tunneling method that is designed for transporting IPv6 packets within a site where a native IPv6 infrastructures is not available.






2. A term generally describing characteristics about BGP paths that are advertised in BGP Updates.






3. Reduces the bandwidth necessary for radio management information - such as access point status messages - that is sent across the network by eliminating redundant management information.






4. In TCP - a TCP host sets the TCP header's Window field to the number of bytes it allows the other host to send before requiring an acknowledgement. In effect - the receiving host - by stating a particular window size - grants the sending host the rig

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5. An IPv6 address format used for publicly registered IPv6 addresses.






6. An OSPF timer that determines how long an LSA can remain in the LSDB without having heard a reflooded copy of the LSA.






7. Forward Explicit Congestion Notification.






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






9. Defined in RFC 3748 - the protocol used by IEEE 802.1X for exchanging authentication information.






10. A Cisco IOS configuration tool that can be used to match routing updates based on a base network address - a prefix - and a range of possible masks used inside the values defined by the base network address and prefix.






11. The PDU used by a particular layer of a networking model - with x defining the layer.






12. With OSPF - the OSPF router that wins an election amongst all current neighbors. The DR is responsible for flooding on the subnet - and for creating and flooding the type 2 LSA for the subnet.






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






14. Aka Rapid Per-VLAN Spanning Tree Plus.






15. An STP timer that dictates the interval at which the Root switch generates and sends Hello BPDUs.






16. A term relating to Cisco LAN switch tail-drop logic - in which multiple tail-drop thresholds may be assigned based on CoS or DSCP - resulting in some frames being discarded more aggressively than others.






17. A router that should not be used to forward packets between other routers. Other routers will not send Query messages to a stub router.






18. Jargon referring to a policer action through which - instead of discarding an out-of-contract packet - the policer marks a different IPP or DSCP value - allowing the packet to continue on its way - but making the packet more likely to be discarded la






19. Secure Shell protocol used for character-oriented command-line access and configuration. A highly secure alternative to Telnet.






20. An early standard from AT&T for encoding analog voice as a digital signal for transmission over a TDM network. PCM requires 64 kbps - and is the basis for the DS0 speed.






21. Used by WRED to calculate the rate at which the average queue depth changes as compared with the current queue depth. The larger the number - the slower the change in the average queue depth.






22. Management Information Base.






23. Frame Relay Forum.






24. With DiffServ - a DSCP marking and a related set of QoS actions applied to packets that have that marking.






25. Excess Burst.






26. The second byte of the IP header - formerly known as the ToS byte and redefined by DiffServ.






27. A time value that each wireless station must set based on the duration value found in every 802.11 frame. The time value counts down and must be equal to zero before a station is allowed to access the wireless medium. The result is a collision-avoida






28. With EIGRP - the route to each destination for which the metric is the lowest of all known routes to that network.






29. An 802.1d STP port state in which the port has been administratively disabled.






30. Area Border Router. An OSPF router that connects to the backbone area and to one or more non-backbone areas.






31. Protocol data unit.






32. 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.






33. Jargon referring to any queue that receives priority service - often used for queues in an LLQ configuration that have the priority command configured.






34. 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.






35. Secure Copy Protocol - one of the many ways of transferring files to and from Cisco IOS routers and switches.






36. The All OSPF DR Routers multicast IP address - listened for by DR and BDR routers.






37. Weighted fair queuing.






38. A well-known discretionary BGP path attribute that flags a route as being a summary route.






39. The algorithm used by OSPF and IS-IS to compute routes based on the LSDB.






40. A switch feature that limits the number of allowed MAC addresses on a port - with optional limits based on the actual values of the MAC addresses.






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






42. In 802.1X - the computer that stores usernames/passwords and verifies that the correct values were submitted before authenticating the user.






43. A message sent by each host - either in response to a router query or on its own - to all multicast groups for which it would like to receive multicast traffic. The destination address on the Report is 224.0.0.22 - and a host can specify the source a






44. A security standard that includes both TKIP and AES and was ratified by the Wi-Fi Alliance.






45. A mechanism in which VLAN information can extend over another set of 802.1Q trunks by tunneling the original 802.1Q traffic with another 802.1Q tag. It allows a service provider to support transparent VLAN services with multiple customers - even if t






46. As defined in RFCs 2765 and 2766 - a method of translating between IPv4 and IPv6 that removes the need for hosts to run dual protocol stacks. NAT-PT is an alternative to tunneling IPv6 over an IPv4 network - or vice versa.






47. Feasible distance.






48. An optimized Layer 3 forwarding path through a router. Fast switching optimizes routing table lookup by creating a special - easily searched table of known flows between hosts.






49. 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.






50. Gateway Load Balancing Protocol.