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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. The MD5-encoded password defined by the enable secret command.






2. 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.






3. Designated router.






4. Challenge Handshake Authentication Protocol.






5. The All OSPF Routers multicast IP address - listened for by all OSPF routers.






6. Port Aggregation Protocol.






7. As defined in RFC 3623 - graceful restart allows for uninterrupted forwarding in the event that an OSPF router's OSPF routing process must restart. The router does this by first notifying the neighbor routers that the restart is about to occur; the n






8. A strategy for subnetting a classful network for which all masks/prefixes are the same value for all subnets of that one classful network.






9. Also called VLAN trunking - a method (using either the Cisco ISL protocol or the IEEE 802.1Q protocol) to support carrying traffic between switches for multiple VLANs that have members on more than one switch.






10. Flush timer.






11. In IPv6 DNS - the IPv6 equivalent of an IPv4 DNS A record.






12. An optional transitive BGP path attribute that - for a summary route - lists the BGP RID and ASN of the router that created the summary.






13. The protocol used in IPv6 for many functions - including address autoconfiguration - duplicate address detection - router - neighbor - and prefix discovery - neighbor address resolution - and parameter discovery.






14. A well-known discretionary BGP path attribute that flags a route as being a summary route.






15. Border Gateway Protocol.






16. A subset of a classful IP network - as defined by a subnet mask - which used to address IP hosts on the same Layer 2 network in much the same way as a classful network is used.






17. A message sent by a multicast router - by default every 125 seconds - on each of its LAN interfaces to determine whether any host wants to receive multicast traffic for any group.






18. A Cisco switch feature that allows separation of ports as if they were in separate VLANs - while allowing the use of a single IP subnet for all ports.






19. A type of AS_PATH segment consisting of an unordered list of ASNs consolidated from component subnets of a summary BGP route.






20. A Cisco-proprietary Layer 2 protocol that enables a router to communicate to a switch which multicast group traffic the router does and does not want to receive from the switch.






21. When a PIM-SM router switches from RPT to SPT - it sends a PIM-SM Prune message for the source and the group with the RP bit set to its upstream router on the shared tree. RFC 2362 uses the notation PIM-SM (S - G) RP-bit Prune for this message.






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






23. Exterior Gateway Protocol.






24. 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.






25. An ITU standard Frame Relay header - including the DLCI - DE - FECN - and BECN bits in the LAPF header - and a frame check in the LAPF trailer.






26. A process used in routers that are encrypting traffic to permit egress QoS actions to be taken on traffic that is being encrypted on that router. QoS pre-classification keeps a copy of each packet to be encrypted in memory long enough to take the app






27. A multicast routing protocol that forwards the multicast traffic only when requested by a downstream router.






28. A designated router that is directly connected with a source of the multicast group.






29. The portion of PPP focused on supporting the CDP protocol.






30. An interface on a Cisco IOS-based switch that is treated as if it were an interface on a router.






31. Slow Start Threshold.






32. Router ID.






33. Cisco Wireless LAN Solution Engine.






34. Measured Round-Trip Time.






35. Provider router.






36. Internet Group Management Protocol.






37. Sending a message from a single source or multiple sources to selected multiple destinations across a Layer 3 network in one data stream.






38. The multicast IP address 224.0.0.5 - listened for by all OSPF routers.






39. On a serial cable - the pin lead set by the DTE to tell the DCE that the DTE wants to send data.






40. Cisco-proprietary STP feature in which an access layer switch is configured to be unlikely to become Root or to become a transit switch. Also - convergence upon the loss of the switch's Root Port takes place in a few seconds.






41. Bipolar 8 Zero Substitution. A serial-line encoding standard that substitutes Bipolar Violations in a string of eight binary 0s to provide enough signal transitions to maintain synchronization.






42. A Cisco IOS configuration tool for RIP and EIGRP for which the list matches routes in routing updates - and adds a defined value to the sent or received metric for the routes. The value added to the metric is the offset.






43. The algorithm used by OSPF and IS-IS to compute routes based on the LSDB.






44. Request-to-send/clear-to-send.






45. In MPLS - a term used to define a label that an LSR learned from a neighboring LSR.






46. An FRF standard for LFI for data (FRF.3) VCs.






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






48. Classless interdomain routing.






49. The SNMP specifications - standardized in RFCs - defining the rules by which SNMP MIB variables should be defined.






50. A Cisco-proprietary protocol - used by LAN switches to communicate VLAN configuration.