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CCIE Vocab

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  • Answer 50 questions in 15 minutes.
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  • Match each statement with the correct term.
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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 term used in this book to refer to a route that is included in a larger summary route.






2. In the context of SNMP - the Trap command is sent by an SNMP agent - to a manager - when the agent wants to send unsolicited information to the manager. Trap is not followed by a Response message from the receiving SNMP manager.






3. Extensible Authentication Protocol.






4. Class-Based Weighted Fair Queuing.






5. Another name for 802.1Q-in-Q. See 802.1Q-in-Q.






6. In the PIM-SM design - the central distribution point to which the multicast traffic is first delivered from the source designated router.






7. Finish time.






8. 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.






9. Expedited Forwarding.






10. Part of the Cisco IOS Firewall feature set - CBAC inspects traffic using information in the higher-layer protocols being carried to decide whether to open the firewall to specific inbound traffic. CBAC supports both UDP and TCP and multiple higher-la






11. On a serial cable - the pin lead set by the DTE to imply that the DTE is ready to signal using pin leads.






12. An SPF calculation as a result of changes inside the same area as a router - for which the SPF run must examine the full LSDB.






13. Aka receiver's advertised window.






14. An event in which a new packet arrives - needing to be placed into a queue - and the queue is full






15. A 3-bit field in an ISL header used for marking frames. Also - used generically to refer to either the ISL CoS field or the 802.1Q User Priority field.






16. The 802.1X function implemented by a switch - in which the switch translates between EAPoL and RADIUS messages in both directions - and enables/disables ports based on the success/failure of authentication.






17. A communication protocol between hosts and a multicast router by which routers learn of which multicast groups' packets need to be forwarded onto a LAN.






18. Ethernet MAC address that represents all devices on the LAN.






19. Shaped round-robin.






20. RFC 1918-defined IPv4 network numbers that are not assigned as public IP address ranges - and are not routable on the Internet. Intended for use inside enterprise networks.






21. With EIGRP - a purposefully slowly changing measurement of round-trip time between neighbors - from which the EIGRP RTO is calculated.






22. A prestandard (at the time of publication) wireless LAN physical layer that offers data rates in the hundreds of megabits per second.






23. The protocol used by content engines to manage traffic flow between routers configured for WCCP and between content engines. WCCP takes advantage of the fact that many web pages (and other content) are regularly accessed by users in a given network.






24. A standards-based way of helping routers find Rendezvous Points (RP). RPs notify BSRs of the groups they handle. BSRs in turn flood the group-to-RP mappings throughout the network. Each router individually determines which RP to use for a particular






25. 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.






26. Protocol Independent Multicast dense-mode routing protocol.






27. A Cisco switch feature that allows separation of ports as if they were in separate VLANs - while allowing the use of a single IP subnet for all ports.






28. A reserved value for the BGP COMMUNITY path attribute that implies that the route should not be advertised to any other peer.






29. In MQC and CB Policing - a configuration style by which - for one category of packets (conform - exceed - or violate) - more than one marking action is defined for a single category. For example - marking DSCP and DE.






30. Network Based Application Recognition.






31. An interface on a Cisco IOS-based switch that is treated as if it were an interface on a switch.






32. Web Cache Communication Protocol.






33. EIGRP (and IGRP) allows for the use of bandwidth - load - delay - MTU - and link reliability; the K values refer to an integer constant that includes these five possible metric components. Only bandwidth and delay are used by default - to minimize re






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






35. A Cisco-proprietary STP implementation - created many years before IEEE 802.1s and 802.1w - that speeds convergence and allows for one STP instance for each VLAN.






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






37. A BGP peer connection between two routers inside the same ASN - but in different confederation sub-autonomous systems.






38. 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.






39. A reserved value for the BGP COMMUNITY path attribute that implies that the route should not be advertised outside the local AS.






40. Flush timer.






41. When a wireless station connects to an access point - the access point assigns an association ID (AID) to the station. Various protocols - such as power-save mode - make use of the association ID.






42. A Cisco IOS configuration tool for RIP and EIGRP for which the list matches routes in routing updates - and adds a defined value to the sent or received metric for the routes. The value added to the metric is the offset.






43. A WRED process by which WRED discards all newly arriving packets intended for a queue - based on whether the queue's maximum threshold has been exceeded.






44. Superframe






45. An MQC configuration style by which one policy map calls a second policy map. For example - a shaping policy map can call an LLQ policy map to implement LLQ for packets shaped by CB Shaping.






46. Point-to-Point Protocol.






47. A bit in the LAPF Frame Relay header that - when set to 1 - implies that the frame has experienced congestion.






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






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






50. 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.







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