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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. A small FIFO queue associated with each router's physical interface - for the purpose of making packets available to the interface hardware - removing the need for a CPU interrupt to start sending the next packet out the interface.






2. 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.






3. Each 802.11 station periodically sends a probe request frame on each RF channel and monitors probe response frames that all access points within range send back. Stations use the signal strength of the probe response frames to determine which access






4. Differentiated Services.






5. The portions of PPP focused on features that are related to specific Layer 3 protocols.






6. In PIM-SM - the path of the group traffic that flows from the RP to the routers that need the traffic. It is also called the root-path tree (RPT) - because it is rooted at the RP.






7. The MPLS feature by which an ingress E-LSR copies the IP packet's IP TTL field into the MPLS header's TTL field.






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






9. A queue created by Cisco IOS as a result of the configuration of a queuing tool.






10. Dynamic ARP Inspection.






11. A process whereby a switch - when making a forwarding decision - uses not only Layer 2 logic but other OSI layer equivalents as well.






12. Digital Signal Level 0.






13. Virtual LAN.






14. The PPP function for fragmenting packets - plus interleaving delay-sensitive later-arriving packets between the fragments of the first packet.






15. A wireless LAN physical layer that operates at up to 11-Mbps data rates using DSSS in the 2.4-GHz band.






16. Sent by a PIM router to its upstream router to either request that the upstream router forward the group traffic or stop forwarding the group traffic that is currently being forwarded. If a PIM router wants to start receiving the group traffic - it l






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






18. A mechanism that counters collisions caused by hidden nodes. If enabled - the station or access point must first send an RTS frame and receive a CTS frame before sending each data frame.






19. Smoothed Round-Trip Time.






20. An optional nontransitive BGP path attribute that lists the route reflector cluster IDs through which a route has been advertised - as part of a loop-prevention process similar to the AS_PATH attribute.






21. With routing protocols - the process by which the router receiving a routing update determines if the routing update came from a trusted router.






22. A 64-bit extension to the BGP NLRI field - used by MPLS for the purpose of making MPLS VPN customer routes unique in spite of the possibility of overlapping IPv4 address spaces in different customer networks.






23. A queuing tool's logic by which it selects the next packet to dequeue from its many queues.






24. Dynamic Trunking Protocol.






25. Area 0; the area to which all other OSPF areas much connect in order for OSPF to work.






26. Any occurrence that could change a router's EIGRP topology table - including a received Update or Query - a failed interface - or the loss of a neighbor.






27. Cisco-proprietary STP feature in which an access layer switch is configured to be unlikely to become Root or to become a transit switch. Also - convergence upon the loss of the switch's Root Port takes place in a few seconds.






28. The multicast addresses assigned by IANA.






29. Router ID.






30. Port Aggregation Protocol.






31. Operates in dense mode and depends on its own unicast routing protocol that is similar to RIP to perform its multicast functions.






32. A Cisco IOS feature that provides reporting information to a NetFlow aggregator based on traffic flows.






33. Designated router.






34. An IPv6/IPv4 tunneling method that allows isolated IPv6 domains to be connected over an IPv4 network.






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






36. Backup designated router.






37. Hot Standby Router Protocol.






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






39. An early standard from AT&T for encoding analog voice as a digital signal for transmission over a TDM network. PCM requires 64 kbps - and is the basis for the DS0 speed.






40. Used to reserve network resources for a flow as it traverses the network. A device that creates an RSVP reservation guarantees that it can provide the bandwidth - latency - or other resources that are requested by RSVP.






41. Class of Service.






42. Another term for summary route.






43. A term referring to EIGRP's internal processing logic.






44. Superframe






45. Flush timer.






46. The process by which neighboring OSPF routers examine their Hello messages and elect the DR. The decision is based on priority (highest) - or RID (highest) if priority is a tie.






47. A basic form of traffic shaping that is applied to an interface or subinterface. By default - it shapes all traffic leaving the interface - but can be modified by using an access control list. The access list controls only what traffic is shaped; GTS






48. From one perspective - DTE devices are one of two devices on either end of a communications circuit - specifically the device with less control over the communications. In Frame Relay - routers connected to a Frame Relay access link are DTE devices.






49. Another name for Superframe.






50. A type of IPv4 and IPv6 traffic designed primarily to provide one-to-many connectivity but unlike broadcast - has the capability to control the scope of traffic distribution.







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