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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-division multiplexing.






2. With shaping - the number of bits allowed to be sent every Tc. Also defines the size of the token bucket when Be = 0.






3. Distance Vector Multicast Routing Protocol.






4. The portion of PPP focused on features that are unrelated to any specific Layer 3 protocol.






5. The term to describe a router that is neither the DR nor the BDR on a subnet that elects a DR and BDR.






6. Prefix list.






7. Source-specific multicast.






8. 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.






9. A wireless LAN that offers connections to the Internet from public places - such as airports - hotels - and coffee shops.






10. Access Control Server. A term referring generically to a server that performs many AAA functions. It also refers to the software product Cisco Secure Access Control Server.






11. Cisco IOS router feature by which a route map determines how to forward a packet - typically based on information in the packet other than the destination IP address.






12. Edge LSR.






13. Neighbor Solicitation.






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






15. The common set of IOS configuration commands that is used with each QoS feature whose name begins with "Class-Based."






16. With RIP - the advertisement of a poisoned route out an interface - when that route was formerly not advertised out that interface due to split horizon rules.






17. VTP process that prevents the flow of broadcasts and unknown unicast Ethernet frames in a VLAN from being sent to switches that have no ports in that VLAN.






18. Forwarding Equivalence Class.






19. A WRED process by which WRED does not discard packets during times in which a queue's minimum threshold has not been passed.






20. 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.






21. Another term for summary route.






22. A router that should either permanently or temporarily not be used as a transit router. Can wait a certain time after OSPF process start - or after BGP notifies OSPF that BGP has converged - before ceasing to be a stub router.






23. 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.






24. The operating mode of shaped round-robin that provides a low-latency queue with policing.






25. The same thing as TCP code bits. See TCP code bits.






26. 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.






27. A queuing scheduler's logic by which - if a particular queue has packets in it - those packets always get serviced next.






28. On a multiaccess network - when a PIM-DM or PIM-SM router receives a Prune message - it starts a 3-second timer. If it receives a Join message on the multiaccess network from another router before the timer expires - it considers the message as an ov






29. An OSPF external route for which internal OSPF cost is added to the cost of the route as it was redistributed into OSPF.






30. A switch feature with which the switch watches ARP messages - determines if those messages may or may not be part of some attack - and filters those that look suspicious.






31. Neighbor Discovery Protocol.






32. Weighted round-robin.






33. An NTP mode in which an NTP host does not adjust its clock - but in which it sends NTP messages to clients so that the clients can update their clocks based on the server's clock.






34. The low-order 4 bits of the configuration register. These bits direct a router to load either ROMMON software (boot field 0x0) - RXBOOT software (boot field 0x1) - or a full-function IOS image.






35. 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.






36. A technology that enables frequency reuse. Two variants exist: frequency hopping (FHSS) and direct sequence (DSSS). Both techniques spread the signal power over a relatively wide portion of the frequency spectrum over time - to reduce interference be






37. With some routing protocols - the time period between successive Hello messages.






38. In MPLS - a term used to define a label that an LSR learned from a neighboring LSR.






39. A neighbor state that signifies the other router has reached neighbor status - having passed the parameter check. The FIB entry details the information needed for forwarding: the next-hop router and the outgoing interface - in an optimized mtrie stru






40. An optional transitive BGP path attribute used to store 32-bit decimal values. Used for flexible grouping of routes by assigning the group the same COMMUNITY value. Other routers can apply routing policies based on the COMMUNITY value. Used in a larg






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






42. A protection against problems caused by unidirectional links between two switches. Uses messaging between switches to detect the loop - err-disabling the port when the link is unidirectional.






43. Rendezvous point.






44. Weighted tail drop.






45. A style of attack in which an ICMP Echo is sent with a directed broadcast (subnet broadcast) destination IP address - and a source address of the host that is being attacked. The attack can result in the Echo reaching a large number of hosts - all of






46. 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






47. An EIGRP router's reaction to an input event - leading to the use of a feasible successor or going active on a route.






48. An EIGRP message that informs neighbors about routing information. Update messages require an Ack.






49. A predefined VC. A PVC can be equated to a leased line in concept.






50. An alternative software loaded into a Cisco router - used for low-level debugging and for password recovery.