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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. A term used in this book to refer to a route that is included in a larger summary route.






2. Cisco-proprietary STP feature in which a switch port monitors for incoming superior Hellos - and reacts to a superior Hello to prevent any switch connected to that port from becoming root.






3. 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.






4. Defined in IEEE 802.1w - a specification to enhance the 802.1d standard to improve the speed of STP convergence.






5. A BGP path attribute that implies how the route was originally injected into some router's BGP table.






6. Aka Rapid Per-VLAN Spanning Tree Plus.






7. In MPLS VPNs - a 64-bit Extended Community path attribute attached to a BGP route for the purpose of controlling into which VRFs the route is added.






8. A network/subnet over which two or more OSPF routers have become neighbors - thereby being able to forward packets from one router to another across that network.






9. A characterization of a BGP path attribute in which BGP implementations are not required to support the attribute (optional) - and for which if a router receives a route with such an attribute - the router should forward the attribute unchanged (tran






10. Feasible distance.






11. Receiver's advertised window.






12. A set of all devices that receive broadcast frames originating from any device within the set. Devices in the same VLAN are in the same broadcast domain.






13. Aka network layer reachability information.






14. A prestandard (at the time of publication) wireless LAN physical layer that offers data rates in the hundreds of megabits per second.






15. Protects against problems caused by unidirectional links between two switches. Watches for loss of received Hello BPDUs - in which case it transitions to a loop-inconsistent state instead of transitioning to a forwarding state.






16. An FRF standard for LFI for VoFR (FRF.11) VCs - in which all voice frames are interleaved in front of data frames' fragments.






17. A switch feature in which the switch examines DHCP messages and - for untrusted ports - filters all messages typically sent by servers and inappropriate messages sent by clients. It also builds a DHCP snooping binding table that is used by DAI and IP






18. Provider edge.






19. A set of QoS RFCs that redefines the IP header's ToS byte - and suggests specific settings of the DSCP field and the implied QoS actions based on those settings.






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






21. A NAT term describing the process of multiplexing TCP and UDP flows - based on port numbers - to a small number of public IP addresses. Also called NAT overloading.






22. Weighted tail drop.






23. A BGP router that forwards iBGP-learned routes to other iBGP routers.






24. A Cisco IOS configuration tool that can be used to match routing updates based on a base network address - a prefix - and a range of possible masks used inside the values defined by the base network address and prefix.






25. In the context of SNMP - the GetNext command is sent by an SNMP manager - to an agent - requesting the value of a single MIB variable. The GetNext request identifies a variable for which the manager wants the variable name and value of the next MIB l






26. From the perspective of one routing protocol - a route that was learned by using route redistribution.






27. WRED compares this setting to the average queue depth to decide whether packets should be discarded. No packets are discarded if the average queue depth falls below this minimum threshold.






28. A standards-based way of helping routers find Rendezvous Points (RP). RPs notify BSRs of the groups they handle. BSRs in turn flood the group-to-RP mappings throughout the network. Each router individually determines which RP to use for a particular






29. Aka receiver's advertised window.






30. Backward Explicit Congestion Notification.






31. With PIM on a multiaccess network - the PIM router with the highest IP address on the subnet. It is also the IGMPv1 Querier. The DR is responsible for the following tasks: - Sending PIM register and PIM join and prune messages toward the RP to infor






32. The first 48 bits of an IPv6 global address - used for efficient route aggregation.






33. Multicast Listener Discovery.






34. Slow Start Threshold.






35. Point-to-Point Protocol over Ethernet. A convention often used as the data link protocol over Cable in which Ethernet is used as the data link protocol - but with PPP being encapsulated inside Ethernet. The combination gives the data link features of






36. Autonomous System Boundary Router. An OSPF router that redistributes routes from some other source into OSPF.






37. An 802.11 frame that access points or stations in ad hoc networks send periodically so that wireless stations can discover the presence of a wireless LAN and coordinate use of certain protocols - such as power-save mode.






38. Distance Vector Multicast Routing Protocol.






39. Jargon referring to the minimum value to which adaptive shaping will lower the shaping rate.






40. 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.






41. Dynamic Multipoint VPN.






42. Border Gateway Protocol.






43. The 802.1X driver that supplies a username/password prompt to the user and sends/receives the EAPoL messages.






44. Extended Superframe.






45. Out of Frame.






46. A conceptual model used by shapers and policers to represent their internal logic.






47. Designated router.






48. A DiffServ PHB that defines eight values that provide backward compatibility with IP Precedence.






49. From one perspective - DTE devices are one of two devices on either end of a communications circuit - specifically the device with less control over the communications. In Frame Relay - routers connected to a Frame Relay access link are DTE devices.






50. An early T1 framing standard.