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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. Service set identifier.






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






3. Reported distance or Route Distinguisher.






4. With routing protocols - the process by which the router receiving a routing update determines if the routing update came from a trusted router.






5. In shaping and policing - the definition of parameters that together imply the allowed rate and bursts.






6. Feasible distance.






7. The process of sending an infinite-metric route in routing updates when that route fails.






8. Orthogonal frequency division multiplexing.






9. Sequence number.






10. 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.






11. When multiple routers are connected to a subnet - only one should be sending IGMP queries. It is called a querier. IGMPv1 does not have any rules for electing a querier. In IGMPv2 and IGMPv3 - a router with the lowest interface IP address on the subn






12. Protocol Independent Multicast sparse-mode routing protocol.






13. A time value that each wireless station must set based on the duration value found in every 802.11 frame. The time value counts down and must be equal to zero before a station is allowed to access the wireless medium. The result is a collision-avoida






14. Maximum Response Time.






15. A mechanism that counters collisions caused by hidden nodes. If enabled - the station or access point must first send an RTS frame and receive a CTS frame before sending each data frame.






16. A method of collecting traffic received on a switch port or a VLAN and sending it to specific destination ports on a switch other than the one on which it was received.






17. A BGP process by which a router reapplies routing policy configuration (route maps - filters - and the like) based on stored copies of sent and received BGP Updates.






18. A type of AS_PATH segment consisting of an ordered list of ASNs through which the route has been advertised.






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






20. An OSPF external route for which internal OSPF cost is not added to the cost of the route as it was redistributed into OSPF.






21. The feature in a Cisco IOS device by which a terminal session's previously typed commands are remembered - allowing the user to recall the old commands to the command line through a simple key sequence (for example - the up-arrow key).






22. The second most significant bit in the most significant byte of an Ethernet MAC address - a value of binary 0 implies that the address is a Universally Administered Address (UAA) (also known as Burned-In Address [BIA]) - and a value of binary 1 impli






23. A wireless LAN that includes the use of access points. Infrastructure mode connects wireless users to a wired network and allows wireless users to roam throughout a facility between different access points. All 802.11 data frames in an infrastructure






24. Link-state advertisement.






25. With EIGRP - for a particular route - the case in which the RD is lower than the FD.






26. The 802.1X function implemented by a switch - in which the switch translates between EAPoL and RADIUS messages in both directions - and enables/disables ports based on the success/failure of authentication.






27. An attack similar to a smurf attack - but using packets for the UDP Echo application instead of ICMP.






28. Prefix list.






29. In the PIM-SM design - the process by which a source DR - after it starts to receive the group traffic - encapsulates the multicast packets in the unicast packets and sends them to the RP.






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






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






32. A protection against problems caused by unidirectional links between two switches. Uses messaging between switches to detect the loop - err-disabling the port when the link is unidirectional.






33. Each 802.11 station periodically sends a probe request frame on each RF channel and monitors probe response frames that all access points within range send back. Stations use the signal strength of the probe response frames to determine which access






34. Class-Based Marking.






35. Challenge Handshake Authentication Protocol.






36. Route Target.






37. A Cisco-proprietary messaging protocol implemented in WAN switches that can be used to signal network status - including congestion - independent of end-user frames and cells.






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






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






40. Pulse code modulation.






41. Finish time.






42. Cell Loss Priority.






43. A queuing tool's logic by which it selects the next packet to dequeue from its many queues.






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






45. A calculation of the length of the AS_PATH PA - which includes 1 for each number in the AS_SEQ - 1 for an entire AS_SET segment - and possibly other considerations.






46. Virtual Router Redundancy Protocol.






47. An optional transitive BGP path attribute used to store 32-bit decimal values. Used for flexible grouping of routes by assigning the group the same COMMUNITY value. Other routers can apply routing policies based on the COMMUNITY value. Used in a larg






48. Frequency hopping spread spectrum.






49. An optional nontransitive BGP path attribute that lists the route reflector cluster IDs through which a route has been advertised - as part of a loop-prevention process similar to the AS_PATH attribute.






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