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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. Quantum value.






2. The process of sending an infinite-metric route in routing updates when that route fails.






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






4. Operation - Administration - and Maintenance.






5. Neighbor Solicitation.






6. With EIGRP - the timer used to determine when a neighboring router has failed - based on a router not receiving any EIGRP messages - including Hellos - in this timer period.






7. A multicast routing protocol that operates in dense mode and depends on the OSPF unicast routing protocol to perform its multicast functions.






8. In MPLS VPNs - a 64-bit Extended Community path attribute attached to a BGP route for the purpose of controlling into which VRFs the route is added.






9. Virtual Routing and Forwarding table.






10. A network/subnet to which only one OSPF router is connected.






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






12. The Lempel Ziv STAC compression algorithm is used in Frame Relay networks to define dynamic dictionary entries that list a binary string from the compressed data and an associated smaller string that represents it during transmission






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






14. Label Switch Router.






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






16. An OSPF router that connects to the backbone area and to one or more non-backbone area.






17. Link Control Protocol.






18. Carrier sense multiple access with collision detection. A media-access mechanism where devices ready to transmit data first check the channel for a carrier. If no carrier is sensed for a specific period of time - a device can transmit. If two devices






19. Custom queuing






20. A BGP feature by which a router learns iBGP routes - and then forwards them to other iBGP peers - reducing the required number of iBGP peers while also avoiding routing loops.






21. With routing protocols - the measurement of favorability that determines which entry will be installed in a routing table if more than one router is advertising that exact network and mask.






22. Time-division multiplexing.






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






24. Network Address Translation-Protocol Translation.






25. A WRED process by which WRED discards all newly arriving packets intended for a queue - based on whether the queue's maximum threshold has been exceeded.






26. Protects against problems caused by unidirectional links between two switches. Watches for loss of received Hello BPDUs - in which case it transitions to a loop-inconsistent state instead of transitioning to a forwarding state.






27. An NTP client that assumes that a server will send NTP broadcasts - removing the requirement for the client to have the NTP server's IP address preconfigured.






28. An 802.1d STP port state in which the port does not send or receive frames - except for listening for received Hello BPDUs.






29. A router feature used when a router sees an ARP request searching for an IP host's MAC - when the router believes the IP host could not be on that LAN because the host is in another subnet. If the router has a route to reach the subnet where the ARP-






30. 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.






31. Policing in which a single rate is metered - and packets are placed into one of three categories (conform - exceed - or violate).






32. A router that should not be used to forward packets between other routers. Other routers will not send Query messages to a stub router.






33. A Cisco-proprietary protocol that defines how to perform authentication between an authenticator (for example - a router) and an authentication server that holds a list of usernames and passwords.






34. A BGP peer connection between two routers inside the same ASN - but in different confederation sub-autonomous systems.






35. A Cisco 12000 series router feature that combines the key features of LLQ and CQ to provide similar congestion-management features.






36. An MQC-based feature of IOS that is used to classify and mark packets for QoS purposes.






37. A term referring generically to ways in which a router or switch can determine whether a particular device or user should be allowed access.






38. A method that creates three thresholds per egress queue in the Cisco 3560 switch. Traffic is divided into the three queues based on CoS value - and given different likelihoods (weight) for tail drop when congestion occurs based on which egress queue






39. In BGP - either external BGP (eBGP) - confederation eBGP - or internal BGP (iBGP). The term refers to a peer connection - and whether the peers are in different ASs (eBGP) - different confederation sub-ASs (confederation eBGP) - or in the same AS (iB






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






41. With PIM on a multiaccess network - the PIM router with the highest IP address on the subnet. It is also the IGMPv1 Querier. The DR is responsible for the following tasks: - Sending PIM register and PIM join and prune messages toward the RP to infor






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






43. Database Description.






44. A Frame Relay traffic shaping feature during which the shaping rate is reduced when the shaper notices congestion through the receipt of BECN or ForeSight messages.






45. An individual line in an ACL.






46. 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.






47. A BGP process by which a router reapplies routing policy configuration (route maps - filters - and the like) based on stored copies of sent and received BGP Updates.






48. A bit in the LAPF Frame Relay header that - when set to 1 - implies that the frame has experienced congestion.






49. An MPLS term referring to the MPLS label just before the IP header. Also called the VPN label when implementing MPLS VPNs.






50. Receiver's advertised window.