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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. The destination VLAN for an RSPAN session.






2. An EIGRP message that is used by neighbors to reply to a query. Reply messages require an Ack.






3. A type of logic for how a router uses a default route. When a default route exists - and the class A - B - or C network for the destination IP address does not exist in the routing table - the default route is used. If any part of that classful netwo






4. An MPLS data structure used for forwarding labeled packets. The LFIB lists the incoming label - which is compared to the incoming packet's label - along with forwarding instructions for the packet.






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






6. Advanced Encryption Standard A superior encryption mechanism that is part of the 802.11i standard and has much stronger security than TKIP.






7. Jargon used to refer to the first of two buckets in the dual token bucket model; its size is Bc.






8. A Cisco IOS interface setting - as a percentage between 1 and 99 - that defines how much of the interface's bandwidth setting may be allocated by a queuing tool. The default value is 75 percent.






9. Network Control Protocol.






10. The IP address to which Label Distribution Protocol (LDP) sends LDP Hellos. Also used in IP multicast to send packets to all multicast routers.






11. Committed Burst.






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






13. The All OSPF Routers multicast IP address - listened for by all OSPF routers.






14. A bit inside the Frame Relay header that - when set - implies that congestion occurred in the direction opposite (or backward) as compared with the direction of the frame.






15. The actual number of packets in a queue at a particular time.






16. 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.






17. 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.






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






19. Modular QoS CLI.






20. Slow Start Threshold.






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






22. With EIGRP - for a particular route - the case in which the RD is lower than the FD.






23. Designated router.






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. The process of taking a PDU from some other source and placing a header in front of the original PDU - and possibly a trailer behind it.






26. Multiple Spanning Trees.






27. An STP timer that dictates how long a switch should wait when it ceases to hear Hellos.






28. On a single computer - one layer provides a service to a higher layer. The software or hardware that implements the higher layer requests that the next lower layer perform the needed function.






29. Tag Distribution Protocol.






30. Inside telcos' original TDM hierarchy - a unit that combines multiple DS1s into a single channel






31. In IPv6 - a Router Advertisement message used by an IPv6 router to send information about itself to nodes and other routers connected to that router.






32. The term referring to a group of iBGP routers in a confederation - with the group members being assigned a hidden ASN for the purposes of loop avoidance.






33. A BGP neighbor state in which the BGP neighbors have stabilized and can exchange routing information using BGP Update messages.






34. Context-Based Access Control.






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






36. Dynamic Multipoint VPN.






37. A Cisco-proprietary messaging protocol used to negotiate the dynamic creation of PortChannels (EtherChannels) and to choose which ports can be placed into an EtherChannel.






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






39. A method of providing dynamically configured spoke-to-spoke VPN connectivity in a hub-and-spoke network that significantly reduces configuration required on the spoke routers compared to traditional IPsec VPN environments.






40. A NAT term describing the process of multiplexing TCP and UDP flows - based on port numbers - to a small number of public IP addresses. Also called NAT overloading.






41. The process of combining multiple synchronized input signals over a single medium by giving each signal its own time slot - and then breaking out those signals.






42. The OSPF data structure that describes topology information.






43. A characterization of a BGP path attribute in which BGP implementations are not required to support the attribute (optional) - and for which if a router receives a route with such an attribute - the router should forward the attribute unchanged (tran






44. Refers to how a router views a BGP peer relationship - in which the peer is in the same AS.






45. The PDU used by a particular layer of a networking model - with x defining the layer.






46. Customer edge.






47. 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.






48. The content engine in a WCCP cluster - which determines how traffic will be distributed within the cluster.






49. A method for how a TCP sender grows its calculated CWND variable - thereby growing the allowed window for the connection. Slow Start grows CWND at an exponential rate.






50. Management Information Base.