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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. Timer An STP timer that dictates how long a port should stay in the listening state and the learning state.






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






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






4. Class-Based Marking.






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






6. The process of taking routes known through one routing protocol and advertising those routes with another routing protocol.






7. Wired Equivalent Privacy.






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






9. A BGP router that forwards iBGP-learned routes to other iBGP routers.






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






11. A BGP feature that defines the IP TTL field value in packets sent between two eBGP peers. This feature is required when using IP addresses other than the interface IP address on the link between peers.






12. Defined in RFC 3748 - the protocol used by IEEE 802.1X for exchanging authentication information.






13. Layer 2 payload compression.






14. A 3-tuple consisting of an IP address - port number - and transport layer protocol. TCP connections exist between a pair of sockets.






15. A TCP variable that defines the largest number of bytes allowed in a TCP segment's Data field. The calculation does not include the TCP header. With a typical IP MTU of 1500 bytes - the resulting default MSS would be 1460. TCP hosts must support an M






16. Type of Service byte.






17. The underlying algorithms associated with RIP.






18. The process of taking the payload inside a Layer 2 frame - including the headers of Layer 3 and above - compressing the data - and then uncompressing the data on the receiving router.






19. The innermost MPLS header in an packet traversing an MPLS VPN - with the label value identifying the forwarding details for the egress PE's VRF associated with that VPN.






20. 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.






21. Part of the Cisco IOS Firewall feature set - CBAC inspects traffic using information in the higher-layer protocols being carried to decide whether to open the firewall to specific inbound traffic. CBAC supports both UDP and TCP and multiple higher-la






22. Measured Round-Trip Time.






23. A message sent by a multicast router - by default every 125 seconds - on each of its LAN interfaces to determine whether any host wants to receive multicast traffic for any group.






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






25. Custom queuing






26. Diffusing Update Algorithm.






27. IP routing The simplest MPLS application - involving the advertisement of an IGP to learn IP routes - and LDP or TDP to advertise labels.






28. 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.






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






30. The first 4 bits of the first octet must be 1110. The last 28 bits are unstructured.






31. Network Layer Protocol ID is a field in the RFC 2427 header that is used as a Protocol Type field in order to identify the type of Layer 3 packet encapsulated inside a Frame Relay frame.






32. A term referring to the MQC class-map command and its related subcommands - which are used for classifying packets.






33. Expedited Forwarding.






34. Context-Based Access Control.






35. Aka network layer reachability information.






36. A message sent by each host - either in response to a router Query or on its own - to all multicast groups for which it would like to receive multicast traffic.






37. A term used with Cisco LAN switches - referring to a queue treated with strict-priority scheduling.






38. Virtual circuit.






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






40. Data communications equipment.






41. Cisco Express Forwarding.






42. DCE devices are one of two devices on either end of a communications circuit - specifically the device with more control over the communications. Frame Relay switches are DCE devices. DCEs are also known as data circuit-terminating equipment (DTE).






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






44. A term used with WFQ for the number assigned to a packet as it is enqueued into a WFQ. WFQ schedules the currently lowest SN packet next.






45. Backward Explicit Congestion Notification.






46. In MPLS VPNs - an entity in a single router that provides a means to separate routes in different VPNs. The VRF includes per-VRF instances of routing protocols - a routing table - and an associated CEF FIB.






47. 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.






48. An EIGRP message that informs neighbors about routing information. Update messages require an Ack.






49. Area Border Router. An OSPF router that connects to the backbone area and to one or more non-backbone areas.






50. An STP timer that dictates the interval at which the Root switch generates and sends Hello BPDUs.