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CCIE Vocab

Instructions:
  • Answer 50 questions in 15 minutes.
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  • 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. A term referring generically to ways in which a router or switch can determine whether a particular device or user should be allowed access.






2. Weighted tail drop.






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






4. An FRF standard for Frame Relay-to-ATM Service Interworking in which one DTE uses Frame Relay and one uses ATM.






5. Excess Burst.






6. The 32-bit number used to represent an OSPF router.






7. Provider router.






8. Rapid Spanning Tree Protocol.






9. The original MPLS protocol used to advertise the binding (mapping) information about each particular IP prefix and associated label. It is slightly different from LDP - but functionally equivalent. See also LDP.






10. A strategy for subnetting a classful network for which all masks/prefixes are the same value for all subnets of that one classful network.






11. A Cisco router feature in which the router works to prevent SYN attacks either by monitoring TCP connections flowing through the router - or by actively terminating TCP connection until the TCP connection is established and then knitting the client-s






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






13. With private VLANs - a secondary VLAN in which the ports can send and receive frames only with promiscuous ports in the primary VLAN.






14. Finish time.






15. Defined in IEEE 802.1s - a specification for multiple STP instances when using 802.1Q trunks






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






17. The rate at which a policer limits the bits exiting or entering the policer.






18. Version 6 of the IP protocol - which uses 128-bit IP addresses.






19. As defined in RFC 3623 - graceful restart allows for uninterrupted forwarding in the event that an OSPF router's OSPF routing process must restart. The router does this by first notifying the neighbor routers that the restart is about to occur; the n






20. A BGP feature that overcomes the requirement of a full mesh of iBGP peers inside a single AS by separating the AS into multiple sub-autonomous systems.






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






22. The combination of MPLS labels and links over which a packet will be forwarded over an MPLS network - from the point of ingress to the MPLS network to the point of egress.






23. In the context of SNMP - the GetNext command is sent by an SNMP manager - to an agent - requesting the value of a single MIB variable. The GetNext request identifies a variable for which the manager wants the variable name and value of the next MIB l






24. The difference between the measured signal power and the noise power that a particular receiver sees at a given time. Higher SNRs generally indicate better performance.






25. Database Description.






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






27. A bit in the Frame Relay header that - when set to 1 - means that if a device needs to discard frames - it should discard the frames with DE 1 first.






28. Bipolar Violation.






29. An E-LSR in an MPLS VPN network whose role in a particular discussion is to receive unlabeled packets over customer links and then forward the packets as labeled packets into the MPLS network.






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






31. A CBWFQ and LLQ term referring to the bandwidth on an interface that is neither reserved nor allocated via a priority command.






32. Inside telcos' original TDM hierarchy - a unit that combines multiple DS0s into a single channel






33. 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.






34. 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.






35. Structure of Management Information.






36. 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.






37. A wireless LAN physical layer that is backward compatible with 802.11b and operates at up to 54-Mbps data rates using OFDM in the 2.4-GHz band.






38. Custom queuing






39. Inter-Switch Link.






40. From the perspective of one routing protocol - a route that was learned by using route redistribution.






41. Differentiated Services Code Point.






42. An IEEE standard that - when used with EAP - provides user authentication before their connected switch port allows the device to fully use the LAN.






43. Uses Modular QoS CLI to control the amount and type of traffic handled by the router or switch control plane. Class maps identify traffic types - and then a service policy applied to the device control plane sets actions for each type of traffic.






44. Multiple Spanning Trees.






45. Per-VLAN Spanning Tree Plus.






46. In MPLS - a term used to define a label that an LSR allocates and then advertises to neighboring routers. The label is considered "local" on the router that allocates and advertises the label.






47. 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.






48. 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






49. IP multicast address range from 224.0.0.0 through 239.255.255.255.






50. A DiffServ PHB that defines eight values that provide backward compatibility with IP Precedence.