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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 queuing scheduler concept - much like CQ's scheduler - in which queues are given some service in sequence. This term is often used with queuing in Cisco LAN switches.






2. A table inside a router that holds the path attributes and NLRI known by the BGP implementation on that router.






3. The process of forwarding packets through a router. Also called IP forwarding.






4. An EIGRP message that is used to acknowledge reliable EIGRP messages - namely Update - Query - and Reply messages. Acks do not require an Ack.






5. An MPLS VPN term referring to a router at a customer site that does not implement MPLS.






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






7. Used by a policer to classify packets relative to the traffic contract. These packets are considered to be above the traffic contract in all cases.






8. On a serial cable - the pin lead set by the DCE to tell the DTE that the DTE is allowed send data.






9. An alternative software loaded into a Cisco router - used for low-level debugging and for password recovery.






10. The characterization of how far EIGRP Query messages flow away from the router that first notices a failed route and goes active for a particular subnet.






11. Wi-Fi Protected Access. A security standard that includes both TKIP and AES and was ratified by the Wi-Fi Alliance.






12. The underlying algorithms associated with RIP.






13. Multicast Listener Discovery.






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






15. Ethernet feature in which a NIC or Ethernet port can both transmit and receive at the same instant in time. It can be used only when there is no possibility of collisions. Loopback circuitry on NIC cards is disabled to use full duplex.






16. In IPv6 - the Neighbor Discovery message used by an IPv6 node to request information about a neighbor or neighbors.






17. A term referring to how a router views a BGP peer relationship - in which the peer is in another AS.






18. With EIGRP - a timer started when a reliable (to be acknowledged) message is transmitted. For any neighbor(s) failing to respond in its RTO - the RTP protocol causes retransmission. RTO is calculated based on SRTT.






19. A Cisco IOS queuing tool that uses MQC configuration commands and reserves a minimum bandwidth for each queue.






20. Time Interval.






21. The process of running the SPF algorithm against the LSDB - with the result being the determination of the current best route(s) to each subnet.






22. An FRF standard for payload compression.






23. Enhanced Local Management Interface.






24. A T1 alarm state that occurs when the receiver can no longer consistently identify the frame. See LOF.






25. 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.






26. 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.






27. High Density Binary 3.






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. Address Resolution Protocol. Defined in RFC 826 - a protocol used on LANs so that an IP host can discover the MAC address of another device that is using a particular IP address.






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






31. The process of taking the IP - UDP - and RTP headers of a voice or video packet - compressing them - and then uncompressing them on the receiving router.






32. A set of all devices for which any frame sent by one of the devices would collide with any frames transmitted at the same time by any of the other devices in the set.






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






34. In BGP - a feature in which BGP routes cannot be considered to be a best route to reach an NLRI unless that same prefix exists in the router's IP routing table as learned via some IGP.






35. 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.






36. Route Target.






37. 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.






38. A process used in routers that are encrypting traffic to permit egress QoS actions to be taken on traffic that is being encrypted on that router. QoS pre-classification keeps a copy of each packet to be encrypted in memory long enough to take the app






39. UniDirectional Link Detection.






40. The protocol used by content engines to manage traffic flow between routers configured for WCCP and between content engines. WCCP takes advantage of the fact that many web pages (and other content) are regularly accessed by users in a given network.






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






42. An exterior routing protocol designed to exchange prefix information between different autonomous systems. The information includes a rich set of characteristics called path attributes - which in turn allows for great flexibility regarding routing ch






43. The common set of IOS configuration commands that is used with each QoS feature whose name begins with "Class-Based."






44. The practice of defining boundaries that determine how far multicast traffic will travel in your network.






45. Rendezvous point.






46. Virtual Router Redundancy Protocol.






47. Version 4 of the IP protocol - which is the generally deployed version worldwide (at publication) - and uses 32-bit IP addresses.






48. The second most significant bit in the most significant byte of an Ethernet MAC address - a value of binary 0 implies that the address is a Universally Administered Address (UAA) (also known as Burned-In Address [BIA]) - and a value of binary 1 impli






49. Request-to-send/clear-to-send.






50. Ethernet MAC address that represents a single NIC or interface.