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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. One-time password.






2. An MPLS VPN term referring to the more efficient choice of popping the outer label at the second-to-last (penultimate) LSR - which then prevents the egress PE from having to perform two LFIB lookups to forward the packet.






3. 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.






4. Defined in RFCs 1517-1520 - a scheme to help reduce Internet routing table sizes by administratively allocating large blocks of consecutive classful IP network numbers to ISPs for use in different global geographies. CIDR results in large blocks of n






5. The command used to initialize a SPAN or RSPAN session on a Catalyst switch.






6. Distance Vector Multicast Routing Protocol.






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






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






9. An 802.1w RSTP port state in which the port is an alternative Designated Port on some LAN segment.






10. Out of Frame.






11. A calculated TCP variable - used along with the TCP CWND variable - to dictate a TCP sender's behavior when it recognizes packet loss. As CWND grows after packet loss - the TCP sender increases CWND based on Slow Start rules - until CWND grows to be






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






13. 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.






14. Challenge Handshake Authentication Protocol.






15. Forward Explicit Congestion Notification.






16. Link Control Protocol.






17. Password Authentication Protocol.






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






19. Peak information rate.






20. Cisco-proprietary STP feature in which a switch port - known to not have a bridge or switch attached to it - transitions from disabled to forwarding state without using any intermediate states.






21. 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.






22. Enhanced Local Management Interface.






23. Records client authentication and roaming events - which are sent to the CiscoWorks Wireless LAN Solution Engine (WLSE) to monitor client associations to specific access points.






24. A Cisco IOS interface software queue queuing strategy implemented automatically when using either form of Frame Relay fragmentation. The system then interleaves packets from the high-priority queue between fragments of the medium-priority queue.






25. Another term for summary route.






26. Defined in RFC 1631 - a method of translating IP addresses in headers with the goal of allowing multiple hosts to share single public IP addresses - thereby reducing IPv4 public address depletion.






27. In an IOS confederation configuration - the actual ASN as seen by eBGP peers.






28. A workstation or server configured to collect and present RMON data for reporting purposes.






29. Cisco Express Forwarding.






30. With RIP - the regular interval at which updates are sent. Each interface uses an independent timer - defaulting to 30 seconds.






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






32. A Cisco-proprietary BGP feature. The administrative weight can be assigned to each NLRI and path locally on a router - impacting the local router's choice of the best BGP routes. The value cannot be communicated to another router.






33. Link-State Refresh. A timer that determines how often the originating router should reflood an LSA - even if no changes have occurred to the LSA.






34. The 802.1X driver that supplies a username/password prompt to the user and sends/receives the EAPoL messages.






35. An issue whereby parts of the RF signal take different paths from the source to the destination - which causes direct and reflected signals to reach the receiver at different times - and corresponding bit errors.






36. AS number. A number between 1 and 64 -511 (public) and 64 -512 and 65 -535 (private) assigned to an AS for the purpose of identifying a specific BGP domain.






37. A Cisco IOS queuing tool that uses MQC configuration commands - reserves a minimum bandwidth for some queues - provides high-priority scheduling for some queues - and polices those queues to prevent starvation of lower-priority queues during interfac






38. A DiffServ PHB - based on DSCP EF (decimal 46) - that provides low-latency queuing behavior as well as policing protection to prevent EF traffic from starving queues for other types of traffic.






39. 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






40. A characteristic of OSPF interfaces that determines whether a DR election is attempted - whether or not neighbors must be statically configured - and the default Hello and Dead timer settings.






41. An EIGRP message that identifies neighbors - exchanges parameters - and is sent periodically as a keepalive function. Hellos do not require an Ack.






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






43. 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.






44. Frame Relay Forum.






45. A type of OSPF packet used to discover neighbors - check for parameter agreement - and monitor the health of another router.






46. 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.






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






48. External BGP.






49. Edge LSR.






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