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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 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






2. 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).






3. In MPLS - a term used to define a label that an LSR allocates and then advertises to neighboring routers. The label is considered "local" on the router that allocates and advertises the label.






4. A term used in this book to refer to a route that is included in a larger summary route.






5. Neighbor Solicitation.






6. 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






7. Point-to-Point Protocol over Ethernet. A convention often used as the data link protocol over Cable in which Ethernet is used as the data link protocol - but with PPP being encapsulated inside Ethernet. The combination gives the data link features of






8. A commonly used name for Multi-VRF CE.






9. Challenge Handshake Authentication Protocol.






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






11. Calculated measurement based on the actual queue depth and the previous average. Designed to allow WRED to adjust slowly to rapid changes of the actual queue depth.






12. Maximum Response Time.






13. Any other router - sharing a common data link - with which a router exchanges Hellos - and for which the parameters in the Hello pass the parameter-check process.






14. A message sent by the multicast router - by default every 60 seconds - on each of its LAN interfaces to determine whether any host wants to receive multicast traffic for any group.






15. Digital Signal Level 0.






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






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






18. IP Control Protocol.






19. The low-order 4 bits of the configuration register. These bits direct a router to load either ROMMON software (boot field 0x0) - RXBOOT software (boot field 0x1) - or a full-function IOS image.






20. A Cisco-proprietary BGP feature. The administrative weight can be assigned to each NLRI and path locally on a router - impacting the local router's choice of the best BGP routes. The value cannot be communicated to another router.






21. Request-to-send/clear-to-send.






22. A contiguous group of data links that share the same OSPF area number.






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






24. Custom queuing






25. A set of four hex digits listed in an IPv6 address. Each quartet is separated by a colon.






26. Port Address Translation.






27. In wireless LANs - a mechanism that counters issues related to RF interference by dividing a larger 802.11 data frame into smaller frames that are sent independently to the destination. See also LFI.






28. An MPLS term referring to the first of several labels when an MPLS-forwarded packet has multiple labels (a label stack).






29. A method of collecting traffic received on a switch port or a VLAN and sending it to specific destination ports on the same switch.






30. Reported distance or Route Distinguisher.






31. A method of Link Fragmentation and Interleaving (LFI) over interfaces that natively use Frame Relay encapsulation. The routers first build MLP-style PPP headers - which are then encapsulated inside a Frame Relay header. The PPP headers are then used






32. 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.






33. After a host receives an IGMP Query - the amount of time (default - 10 seconds) the host has to send the IGMP Report.






34. Superframe






35. A routing protocol feature for which the routing protocol sends routing updates immediately upon hearing about a changed route - even though it may normally only send updates on a regular update interval.






36. A configuration tool in Cisco IOS that allows basic programming logic to be applied to a set of items. Often used for decisions about what routes to redistribute - and for setting particular characteristics of those routes






37. Shaped round-robin.






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






39. A 3-bit field in the first 3 bits of the ToS byte in the IP header - used for QoS marking.






40. An OSPF external route for which internal OSPF cost is added to the cost of the route as it was redistributed into OSPF.






41. The portion of PPP focused on features that are unrelated to any specific Layer 3 protocol.






42. Cell Loss Priority.






43. Clear To Send.






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






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






46. 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.






47. A standard (RFC 903) protocol by which a LAN-attached host can dynamically broadcast a request for a server to assign it an IP address. See also ARP.






48. In BGP - a set of routers inside a single administrative authority - grouped together for the purpose of controlling routing policies for the routes advertised by that group to the Internet.






49. A dotted-decimal number used to help define the structure of an IP address. The binary 0s in the mask identify the host portion of an address - and the binary 1s identify either the combined network and subnet part (when thinking classfully) or the n






50. Prefix list.