Test your basic knowledge |

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






2. Cisco IOS Embedded Event Manager - a feature that monitors events on a router and reports their results. Principally intended to increase availability - EEM provides flexible - granular detection and alerting functions.






3. An OSPF area into which external (type 5) LSAs are not introduced by its ABRs; instead - the ABRs originate and inject default routes into the area.






4. A message sent by each host - either in response to a router query or on its own - to all multicast groups for which it would like to receive multicast traffic. The destination address on the Report is 224.0.0.22 - and a host can specify the source a






5. A Cisco-proprietary protocol that defines how to perform authentication between an authenticator (for example - a router) and an authentication server that holds a list of usernames and passwords.






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






7. Network Address Translation-Protocol Translation.






8. The protocol used by content engines to manage traffic flow between routers configured for WCCP and between content engines. WCCP takes advantage of the fact that many web pages (and other content) are regularly accessed by users in a given network.






9. A name used for DS3 lines inside the European TDM hierarchy.






10. A list of interspersed alphanumeric literals and metacharacters that are used to apply complex matching logic to alphanumeric strings. Often used for matching AS_PATHs in Cisco routers.






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






12. In MPLS - a term used to define a label that an LSR allocates and then advertises to neighboring routers. The label is considered "local" on the router that allocates and advertises the label.






13. One of the two modes of MDRR - in which the priority queue is serviced between each servicing of the non-priority queues.






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






15. A TCP variable used as the basis for a TCP sender's timer defining how long it should wait for a missing acknowledgement before resending the data.






16. A Cisco-proprietary messaging protocol used to negotiate the dynamic creation of PortChannels (EtherChannels) and to choose which ports can be placed into an EtherChannel.






17. In IPv6 - the Neighbor Discovery message used by an IPv6 node to request information about a neighbor or neighbors.






18. VTP process that prevents the flow of broadcasts and unknown unicast Ethernet frames in a VLAN from being sent to switches that have no ports in that VLAN.






19. A Cisco-proprietary STP implementation - created many years before IEEE 802.1s and 802.1w - that speeds convergence and allows for one STP instance for each VLAN.






20. Protocol Independent Multicast dense-mode routing protocol.






21. Timer An STP timer that dictates how long a port should stay in the listening state and the learning state.






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






23. In wireless LANs - a mechanism that counters issues related to RF interference by dividing a larger 802.11 data frame into smaller frames that are sent independently to the destination. See also LFI.






24. A BGP feature that overcomes the requirement of a full mesh of iBGP peers inside a single AS by separating the AS into multiple sub-autonomous systems.






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






26. Multilayer Switching.






27. A type of OSPF NSSA area for which neither external (type 5) LSAs are introduced - nor type 3 summary LSAs; instead - the ABRs originate and inject default routes into the area. External routes can be injected into a totally NSSA area.






28. Exterior Gateway Protocol.






29. The RFC 1997 name for the reserved COMMUNITY path attribute known to Cisco IOS as LOCAL_AS. (See LOCAL_AS.)






30. An IP variable that defines the largest size allowed in an IP packet - including the IP header. IP hosts must support an MTU of at least 576 bytes.






31. The multicast addresses assigned by IANA.






32. The second byte of the IP header - formerly known as the ToS byte and redefined by DiffServ.






33. 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.






34. A type of OSPF stub area for which neither external (type 5) LSAs are introduced - nor type 3 summary LSAs; instead - the ABRs originate and inject default routes into the area. External routes cannot be injected into a totally stubby area.






35. With some routing protocols - the time period between successive Hello messages.






36. Used by WRED to calculate the rate at which the average queue depth changes as compared with the current queue depth. The larger the number - the slower the change in the average queue depth.






37. A type of logic for how a router uses a default route. When a default route exists - and the class A - B - or C network for the destination IP address does not exist in the routing table - the default route is used. If any part of that classful netwo






38. 16 bits between the interface ID and global routing prefix in an IPv6 global address - used for subnet assignment inside an enterprise.






39. With Spanning Tree Protocol - the single port on each LAN segment from which the best Hello BPDU is forwarded.






40. CDP Control Protocol.






41. Not-so-stubby area.






42. Link-State Refresh. A timer that determines how often the originating router should reflood an LSA - even if no changes have occurred to the LSA.






43. A type of OSPF packet used to discover neighbors - check for parameter agreement - and monitor the health of another router.






44. Any other router - sharing a common data link - with which a router exchanges Hellos - and for which the parameters in the Hello pass the parameter-check process.






45. A table used by CEF that holds information about adjacent IP hosts to which packets can be forwarded.






46. Jargon used by STP mostly when discussing the root election process; refers to a Hello with a lower bridge ID. Sometimes refers to a Hello with the same bridge ID as another - but with better values for the tiebreakers in the election process.






47. Link Fragmentation and Interleaving.






48. With shaping - the number of bits allowed to be sent every Tc. Also defines the size of the token bucket when Be = 0.






49. The 32-bit number used to represent an OSPF router.






50. For some encoding schemes - consecutive signals must use opposite polarity in an effort to reduce DC current. A BPV occurs when consecutive signals are of the same polarity.