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CCIE Vocab

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  • Match each statement with the correct term.
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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 Cisco IOS configuration tool for routing protocols by which routing updates may be filtered.

2. Digital Signal Level 3.

3. 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

4. An STP timer that dictates the interval at which the Root switch generates and sends Hello BPDUs.

5. Excess Burst.

6. A Cisco IOS interface software queue queuing strategy implemented automatically when using either form of Frame Relay fragmentation. The system then interleaves packets from the high-priority queue between fragments of the medium-priority queue.

7. A name used for DS1 lines inside the European TDM hierarchy.

8. A 1-byte field in the IP header - originally defined by RFC 791 for QoS marking purposes.

9. 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

10. Aka network layer reachability information.

11. A contiguous group of data links that share the same OSPF area number.

12. Controls the distribution of multicast traffic for the private multicast address range to by configuring a filter and applying it on the interfaces.

13. A strategy for subnetting a classful network for which masks/prefixes are different for some subnets of that one classful network.

14. On a serial cable - the pin lead set by the DCE to imply that the DCE is ready to signal using pin leads

15. A type of OSPF packet used to exchange and acknowledge LSA headers. Sometimes called DBD.

16. A wireless LAN that offers connections to the Internet from public places - such as airports - hotels - and coffee shops.

17. Extensible Authentication Protocol.

18. Any OSPF neighbor for which the database flooding process has completed.

19. The same thing as TCP code bits. See TCP code bits.

20. An STP timer that dictates how long a switch should wait when it ceases to hear Hellos.

21. 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

22. Defined in RFC 1293 - this protocol allows a Frame Relay-attached device to react to a received LMI "PVC up" message by announcing its Layer 3 addresses to the device on the other end of the PVC.

23. A possible side effect of a scheduler that performs strict-priority scheduling of a queue - which can result in lower-priority queues getting little or no service.

24. Bipolar Violation.

25. A single address in each subnet for which packets sent to this address will be broadcast to all hosts in the subnet. It is the highest numeric value in the range of IP addresses implied by a subnet number and prefix/mask.

26. A predefined VC. A PVC can be equated to a leased line in concept.

27. An optimized Layer 3 forwarding path through a router. Fast switching optimizes routing table lookup by creating a special - easily searched table of known flows between hosts.

28. A technology that sends a high-speed data stream over multiple subcarriers simultaneously. It is highly immune to multipath interference. 802.11a and 802.11g specify the use of OFDM.

29. 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.

30. A route that is used for forwarding packets when the packet does not match any more specific routes in the IP routing table.

31. Designated router.

32. The signal strength of the RF signal at the output of the radio card or access point transmitter - before being fed into the antenna. Measured in milliwatts - watts - or dBm.

33. The range through that IANA has assigned for use in private multicast domains.

34. Rendezvous point.

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

36. Router-Port Group Management Protocol.

37. A Cisco IOS queuing tool that uses MQC configuration commands - reserves a minimum bandwidth for some queues - provides high-priority scheduling for some queues - and polices those queues to prevent starvation of lower-priority queues during interfac

38. An enhanced version of WEP that is part of the 802.11i standard and has an automatic key-update mechanism that makes it much more secure than WEP. TKIP is not as strong as AES in terms of data protection.

39. 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.

40. Defined in FRF.11 - an FR VC that uses a slightly varied header - as compared with FRF.3 data VCs - to accommodate voice payloads directly encapsulated inside the Frame Relay LAPF header.

41. The condition in which a route has been in an EIGRP active state for longer than the router's Active timer.

42. High Density Binary 3.

43. An EIGRP message that is used to ask neighboring routers to verify their route to a particular subnet. Query messages require an Ack.

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

45. In TCP - a TCP host sets the TCP header's Window field to the number of bytes it allows the other host to send before requiring an acknowledgement. In effect - the receiving host - by stating a particular window size - grants the sending host the rig

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

47. Each 802.11 station passively monitors each RF channel for a specific amount of time and listens for beacons. Stations use the signal strengths of found beacons to determine the access point or ad hoc network with which to attempt association.

48. A router that is allowed to receive a packet from an OSPF router and then forward the packet to another OSPF router.

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

50. Defines a particular behavior for FTP regarding the establishment of data TCP connections. In active mode - the FTP client uses the FTP PORT command - over the FTP control connection - to tell the FTP server the port on which the client should be lis