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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. An IPv6 address format used for publicly registered IPv6 addresses.






2. The Frame Relay protocol used between a DCE and DTE to manage the connection. Signaling messages for SVCs - PVC Status messages - and keepalives are all LMI messages.






3. Distance Vector Multicast Routing Protocol.






4. WRED compares this setting to the average queue depth to decide whether packets should be discarded. All packets are discarded if the average queue depth rises above this maximum threshold.






5. A type of OSPF packet used to exchange and acknowledge LSA headers. Sometimes called DBD.






6. On a serial cable - the pin lead set by the DCE to imply a working link.






7. The original MPLS protocol used to advertise the binding (mapping) information about each particular IP prefix and associated label. It is slightly different from LDP - but functionally equivalent. See also LDP.






8. A switch feature that limits the number of allowed MAC addresses on a port - with optional limits based on the actual values of the MAC addresses.






9. Source-specific multicast.






10. A VC that is set up dynamically when needed. An SVC can be equated to a dial-on-demand connection in concept.






11. An OSPF timer that determines how long an LSA can remain in the LSDB without having heard a reflooded copy of the LSA.






12. A characterization of a BGP path attribute in which all BGP implementations must support and understand the attribute (well known) - and all BGP Updates must include the attribute (mandatory).






13. Another term for summary route.






14. 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.






15. Cisco-proprietary STP feature in which a switch port monitors for STP BPDUs of any kind - err-disabling the port upon receipt of any BPDU.






16. A component that interfaces with a phone using IP and provides connections to the Public Switched Telephone Network (PSTN).






17. Data communications equipment.






18. In IP routing - a term referring to the process of forwarding packets through a router.






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






20. When a wireless station connects to an access point - the access point assigns an association ID (AID) to the station. Various protocols - such as power-save mode - make use of the association ID.






21. VTP process that prevents the flow of broadcasts and unknown unicast Ethernet frames in a VLAN from being sent to switches that have no ports in that VLAN.






22. The command used to initialize a SPAN or RSPAN session on a Catalyst switch.






23. 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.






24. An early T1 framing standard.






25. The one VLAN on an 802.1Q trunk for which the endpoints do not add the 4-byte 802.1Q tag when transmitting frames in that VLAN.






26. Copper cable with RJ-45 connectors in which a twisted pair at pins 1 -2 on the first end of the cable is connected to pins 3 -6 on the other end - with a second pair connected to pins 3 -6 on the first end and pins 1 -2 on the other end.






27. One-time password.






28. Variable-length subnet masking.






29. Multiple Spanning Trees.






30. The multicast addresses assigned by IANA.






31. Reduces the bandwidth necessary for radio management information - such as access point status messages - that is sent across the network by eliminating redundant management information.






32. 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.






33. 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.






34. Sent by a PIM-DM or PIM-SM router when it receives a multicast packet for a group on a LAN interface that is in the outgoing interface list for the group; includes the administrative distance of the unicast routing protocol used to learn the network






35. A type of OSPF NSSA area for which neither external (type 5) LSAs are introduced - nor type 3 summary LSAs; instead - the ABRs originate and inject default routes into the area. External routes can be injected into a totally NSSA area.






36. A type of logic for how a router uses a default route. When a default route exists - and no more specific match is made between the destination of the packet and the routing table - the default route is used.






37. A Cisco IOS queuing tool most notable for its reservation of a minimum bandwidth for each queue.






38. A table used by CEF that holds information about adjacent IP hosts to which packets can be forwarded.






39. PIM-DM is a method of routing multicast packets that depends on a flood-and-prune approach. PIM Dense Mode gets its name from the assumption that there are many receivers of a particular multicast group - close together (from a network perspective).






40. Instead of advertising all routes out a particular interface - the routing protocol omits the routes whose outgoing interface field matches the interface out which the update would be sent.






41. The process of successive neighboring routers exchanging LSAs such that all routers have an identical LSDB for each area to which they are attached.






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






43. Exterior Gateway Protocol.






44. Class of Service.






45. Temporal Key Integrity Protocol.






46. Dynamic Trunking Protocol.






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






48. 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






49. A set of all devices that receive broadcast frames originating from any device within the set. Devices in the same VLAN are in the same broadcast domain.






50. 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.







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