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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 EIGRP message that identifies neighbors - exchanges parameters - and is sent periodically as a keepalive function. Hellos do not require an Ack.






2. Secure Copy Protocol - one of the many ways of transferring files to and from Cisco IOS routers and switches.






3. A method that creates three thresholds per egress queue in the Cisco 3560 switch. Traffic is divided into the three queues based on CoS value - and given different likelihoods (weight) for tail drop when congestion occurs based on which egress queue






4. External BGP.






5. A field in the IP header that is decremented at each pass through a Layer 3 forwarding device.






6. Pulse code modulation.






7. A router that should either permanently or temporarily not be used as a transit router. Can wait a certain time after OSPF process start - or after BGP notifies OSPF that BGP has converged - before ceasing to be a stub router.






8. The number of beacons that governs how often multicast frames are sent over a wireless LAN.






9. In IPv6 - an address used in the Neighbor Discovery (ND) process. The format for these addresses is FF02::1:FF00:0000/104 - and each IPv6 host must join the corresponding group for each of its unicast and anycast addresses.






10. Committed information rate.






11. Per-Hop Behavior.






12. Multiple Spanning Trees.






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






14. The destination VLAN for an RSPAN session.






15. Designed to solve the problems of multicast duplication and multicast routing loops. For every multicast packet received - a multicast router examines its source IP address - consults its unicast routing table - determines which interface it would us






16. From one multicast router's perspective - the upstream router is another router that has just forwarded a multicast packet to that router.






17. With private VLANs - a secondary VLAN in which the ports can send and receive frames with each other - but not with ports in other secondary VLANS.






18. A term referring to the MQC policy-map command and its related subcommands - which are used to apply QoS actions to classes of packets.






19. An MPLS VPN term referring to a router at a customer site that does not implement MPLS.






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






21. The operating mode of shaped round-robin that provides behavior like CBWFQ with bandwidth allocated between different traffic classes by a relative amount rather than absolute percentage of the available bandwidth.






22. With RIP - a per-route timer (default 180 seconds) that begins when a route's metric changes to a larger value.






23. A communication protocol between hosts and a multicast router by which routers learn of which multicast groups' packets need to be forwarded onto a LAN.






24. Variable name for the time interval used by shapers and by CAR.






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






26. Peak information rate.






27. A wireless LAN physical layer that operates at up to 54-Mbps data rates using OFDM in the 5-GHz band.






28. 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.






29. A term generally describing characteristics about BGP paths that are advertised in BGP Updates.






30. Congestion window.






31. On a multiaccess network - when a PIM-DM or PIM-SM router receives a Prune message - it starts a 3-second timer. If it receives a Join message on the multiaccess network from another router before the timer expires - it considers the message as an ov






32. 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






33. Another name for 802.1Q-in-Q. See 802.1Q-in-Q.






34. 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






35. Modular QoS CLI.






36. A network/subnet to which only one OSPF router is connected.






37. Switched virtual circuit.






38. A BGP router that - unknown to it - is aided by a route reflector server to cause all iBGP routers in an AS to learn all eBGP-learned prefixes.






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






40. An NTP mode in which two or more NTP servers mutually synchronize their clocks.






41. Custom queuing






42. A logical concept that represents the path over which frames travel between DTEs. VCs are particularly useful when comparing Frame Relay to leased physical circuits.






43. The list of entries learned by the switch DHCP snooping feature. The entries include the MAC address used as the device's DHCP client address - the assigned IP address - the VLAN - and the switch port on which the DHCP assignment messages flowed.






44. The RMON function of tracking a particular variable. RMON events trigger RMON alarms.






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






46. Defined in RFC 3748 - the protocol used by IEEE 802.1X for exchanging authentication information.






47. 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






48. Used by WRED to calculate the maximum percentage of packets discarded when the average queue depth falls between the minimum and maximum thresholds.






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






50. Loss of Frame.