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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. Network Based Application Recognition.






2. Data-link connection identifier.






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






4. A set of packets in an MPLS network for which the MPLS network will apply the exact same forwarding behavior.






5. Modular QoS CLI.






6. The operating mode of shaped round-robin that provides behavior like CBWFQ with bandwidth allocated between different traffic classes by a relative amount rather than absolute percentage of the available bandwidth.






7. Link Control Protocol.






8. Ethernet MAC address that represents a single NIC or interface.






9. The process of successive neighboring routers exchanging LSAs such that all routers have an identical LSDB for each area to which they are attached.






10. A 3-tuple consisting of an IP address - port number - and transport layer protocol. TCP connections exist between a pair of sockets.






11. A single instance of STP that is applied to multiple VLANs - typically when using the 802.1Q trunking standard.






12. An MPLS term referring to the first of several labels when an MPLS-forwarded packet has multiple labels (a label stack).






13. The process of breaking a frame into pieces - sending some of the fragments - and then sending all or part of a different packet - all of which is done to reduce the delay of the second packet.






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






15. An optional transitive BGP path attribute that - for a summary route - lists the BGP RID and ASN of the router that created the summary.






16. Data Carrier Detect.






17. Router Advertisement.






18. When a Query is received from a router - each host randomly picks a time between 0 and the Maximum Response Time period to send a Report. When the host with the smallest time period first sends the Report - the rest of the hosts suppress their report






19. Cisco-proprietary STP feature in which switches use messaging to confirm the loss of Hello BPDUs in a switch's Root Port - to avoid having to wait for maxage to expire - resulting in faster convergence.






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






21. Cisco-proprietary VLAN trunking protocol.






22. A Cisco-proprietary Layer 2 protocol that enables a router to communicate to a switch which multicast group traffic the router does and does not want to receive from the switch.






23. The IP address to which Label Distribution Protocol (LDP) sends LDP Hellos. Also used in IP multicast to send packets to all multicast routers.






24. An MPLS LSR that can forward and receive both labeled and unlabeled packets.






25. A standard (RFC 951) protocol by which a LAN-attached host can dynamically broadcast a request for a server to assign it an IP address - along with other configuration settings - including a subnet mask and default gateway IP address.






26. 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






27. Loss of Signal. A T1 alarm state that occurs when the receiver has not received any pulses of either polarity for a defined time period.






28. An ITU standard Frame Relay header - including the DLCI - DE - FECN - and BECN bits in the LAPF header - and a frame check in the LAPF trailer.






29. Flush timer.






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






31. Type of Service byte.






32. A tunneling protocol that can be used to encapsulate many different protocol types - including IPv4 - IPv6 - IPsec - and others - to transport them across a network.






33. A BGP router that - unknown to it - is aided by a route reflector server to cause all iBGP routers in an AS to learn all eBGP-learned prefixes.






34. The number of bytes in a queue that are removed per cycle in MDRR. Similar to byte count in the custom queuing (CQ) scheduler.






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






36. The process of taking the IP and TCP headers of a packet - compressing them - and then uncompressing them on the receiving router.






37. Challenge Handshake Authentication Protocol.






38. With Spanning Tree Protocol - the single port on each LAN segment from which the best Hello BPDU is forwarded.






39. A set of parameters for CBAC to perform in its traffic inspection process.






40. An IPv6 migration strategy in which a host or router supports both IPv4 and IPv6 natively.






41. In wireless LANs - a mechanism that counters issues related to RF interference by dividing a larger 802.11 data frame into smaller frames that are sent independently to the destination. See also LFI.






42. A component that interfaces with a phone using IP and provides connections to the Public Switched Telephone Network (PSTN).






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






44. In IP routing - a term referring to the building of IP routing tables by IP routing protocols.






45. A Cisco IOS queuing tool that uses MQC configuration commands and reserves a minimum bandwidth for each queue.






46. Operation - Administration - and Maintenance.






47. Common Spanning Tree.






48. WRED compares this setting to the average queue depth to decide whether packets should be discarded. All packets are discarded if the average queue depth rises above this maximum threshold.






49. High Density Binary 3.






50. A Frame Relay address used in Frame Relay headers to identify the VC