Test your basic knowledge |

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. Committed information rate.






2. Local Management Interface.






3. 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.






4. Link Control Protocol.






5. A bit in the Frame Relay header that - when set to 1 - means that if a device needs to discard frames - it should discard the frames with DE 1 first.






6. Generic routing encapsulation.






7. With RIP - a per-route timer - which is reset and grows with the Invalid timer. When the Flush timer mark is reached (default 240 seconds) - the router removes the route from the routing table - and now accepts any other routes about the failed subne






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






9. Flush timer.






10. The Cisco IOS Router IP Traffic Export feature - intended for intrusion detection - exports IP traffic that has signs of an attack - such as duplicate IP packets simultaneously received on two or more of a router's interfaces.






11. One of the two modes of MDRR - in which the priority queue is serviced between each servicing of the non-priority queues.






12. The range 232.0.0.0 through 232.255.255.255 that is allocated by IANA for SSM destination addresses and is reserved for use by source-specific applications and protocols.






13. A multicast routing protocol whose default action is to flood multicast packets throughout a network.






14. A WFQ term referring to its drop logic - which is similar to tail-drop behavior.






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






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






17. The rate at which a policer limits the bits exiting or entering the policer.






18. 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.






19. Inside telcos' original TDM hierarchy - a unit that combines multiple DS1s into a single channel






20. An enhanced version of T1 framing - as compared with the earlier Superframe (D4) standard.






21. Weighted round-robin.






22. A type of routing protocol convergence event in which the metric for a route increases slightly over time because of the advertisement of an invalid route.






23. 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.






24. A BGP path attribute that lists ASNs through which the route has been advertised. The AS_PATH includes four types of segments: AS_SEQ - AS_SET - AS_CONFED_SEQ - and AS_CONFED_SET. Often - this term is used synonymously with AS_SEQ






25. A characteristic of OSPF interfaces that determines whether a DR election is attempted - whether or not neighbors must be statically configured - and the default Hello and Dead timer settings.






26. Request-to-send/clear-to-send.






27. A wireless LAN that only includes wireless users and no access points. 802.11 data frames in an ad hoc network travel directly between wireless users.






28. An 802.1d STP port state in which the port sends and receives frames.






29. 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






30. The Lempel Ziv STAC compression algorithm is used in Frame Relay networks to define dynamic dictionary entries that list a binary string from the compressed data and an associated smaller string that represents it during transmission






31. An FRF standard for Frame Relay-to-ATM Service Interworking in which both DTEs use Frame Relay - with ATM in between.






32. Service set identifier.






33. A T1 alarm state that occurs when a device has detected a local LOF/LOS/AIS condition. The device in Red alarm state then sends a Yellow alarm signal.






34. Carrier sense multiple access with collision detection. A media-access mechanism where devices ready to transmit data first check the channel for a carrier. If no carrier is sensed for a specific period of time - a device can transmit. If two devices






35. With Spanning Tree Protocol - the single port on each LAN segment from which the best Hello BPDU is forwarded.






36. A type of OSPF packet - used to communicate LSAs to another router.






37. Spanning Tree Protocol.






38. Layer 2 payload compression.






39. 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.






40. Route Target.






41. Network Control Protocol.






42. External BGP.






43. 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.






44. A type of OSPF stub 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 cannot be injected into a totally stubby area.






45. A Cisco-proprietary STP implementation - created many years before IEEE 802.1s and 802.1w - that speeds convergence and allows for one STP instance for each VLAN.






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






47. 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.






48. Extended Superframe.






49. Time to Live.






50. Defined in RFC 1631 - a method of translating IP addresses in headers with the goal of allowing multiple hosts to share single public IP addresses - thereby reducing IPv4 public address depletion.