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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. With a routing update - or routing table entry - the portion of a route that defines the next router to which a packet should be sent to reach the destination subnet. With routing protocols - the Next Hop field may define a router other than the rout






2. A route that is created to represent one or more smaller component routes - typically in an effort to reduce the size of routing and topology tables.






3. With EIGRP - a router sharing the same primary subnet - with which Hellos are exchanged - parameters match - and with which routes can be exchanged.






4. Uses Modular QoS CLI to control the amount and type of traffic handled by the router or switch control plane. Class maps identify traffic types - and then a service policy applied to the device control plane sets actions for each type of traffic.






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






6. Link Control Protocol.






7. Digital Signal Level 3.






8. Enhances RP redundancy by providing a method for RPs to exchange multicast source information - even between multicast domains.






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






10. Internet Group Management Protocol.






11. A T1 alarm state that occurs when a device receives a Yellow Alarm signal. This typically means that the device on the other end of the line is in a Red Alarm state.






12. 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.






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






14. An Internet standard (RFC 1305) that defines the messages and modes used for IP hosts to synchronize their time-of-day clocks.






15. An Internet standard authentication protocol that uses clear-text passwords and a two-way handshake to perform authentication over a PPP link.






16. Network Time Protocol.






17. 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.






18. Aka receiver's advertised window.






19. Aka network layer reachability information.






20. Neighbor Discovery Protocol.






21. Defines a particular behavior for FTP regarding the establishment of TCP data connections. In passive mode - an FTP server uses the FTP PORT command - over the FTP control connection - to tell the FTP client the port on which the server will be liste






22. A Cisco IOS configuration tool for routing protocols by which routing updates may be filtered.






23. Internal BGP.






24. The definitions for a particular set of data variables - with those definitions following the SMI specifications. See also SMI.






25. 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.






26. A set of DiffServ PHBs that defines 12 DSCP values - with four queuing classes and three drop probabilities within each queuing class.






27. A NAT term describing an IP address representing a host that resides inside the enterprise network - with the address being used in packets inside the enterprise network.






28. A serial-line encoding standard that sends alternating positive and negative 3-volt signals for binary 1 - and no signal (0 V) for binary 0.






29. A basic form of traffic shaping that is applied to an interface or subinterface. By default - it shapes all traffic leaving the interface - but can be modified by using an access control list. The access list controls only what traffic is shaped; GTS






30. Source-specific multicast.






31. Request-to-send/clear-to-send.






32. A protocol - defined in RFC 2865 - 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.






33. A term referring to the processes and bits in the data stream used to manage the Telco TDM hierarchy.






34. CDP Control Protocol.






35. A Cisco switch feature that permits limiting traffic arriving at switch ports by percentage or absolute bandwidth. Separate thresholds are available per port for unicast - multicast - and broadcast traffic.






36. An optional contention-free 802.11 access protocol that requires the access point to poll wireless stations before they are able to send frames. Not commonly implemented.






37. A TCP variable used as the basis for a TCP sender's timer defining how long it should wait for a missing acknowledgement before resending the data.






38. Local Management Interface.






39. 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.






40. 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






41. The second byte of the IP header - formerly known as the ToS byte and redefined by DiffServ.






42. Shaped round-robin.






43. A mapping between each DSCP value and a WRED threshold - often used in Cisco LAN switches when performing WRED.






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






45. Link Aggregation Control Protocol.






46. A small FIFO queue associated with each router's physical interface - for the purpose of making packets available to the interface hardware - removing the need for a CPU interrupt to start sending the next packet out the interface.






47. 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.






48. An 802.1d STP transitory port state in which the port does not send or receive frames - but does learn the source MAC addresses from incoming frames.






49. 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.






50. The actual number of packets in a queue at a particular time.