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






2. The process - defined by FRF.5 and FRF.8 - for combining ATM and FR technologies for an individual VC.






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






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






5. A 64-bit extension to the BGP NLRI field - used by MPLS for the purpose of making MPLS VPN customer routes unique in spite of the possibility of overlapping IPv4 address spaces in different customer networks.






6. A 3-bit field in an ISL header used for marking frames. Also - used generically to refer to either the ISL CoS field or the 802.1Q User Priority field.






7. Network Layer Protocol ID is a field in the RFC 2427 header that is used as a Protocol Type field in order to identify the type of Layer 3 packet encapsulated inside a Frame Relay frame.






8. The term referring to a group of iBGP routers in a confederation - with the group members being assigned a hidden ASN for the purposes of loop avoidance.






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






10. 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






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






12. A reserved value for the BGP COMMUNITY path attribute that implies that the route should not be advertised to any other peer.






13. A method of applying a mathematical formula - with input including a private key - the message contents - and sometimes a shared text string - with the resulting digest being included with the message. The sender and the receiver perform the same mat






14. 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.






15. 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.






16. A BGP neighbor state in which the BGP neighbors have stabilized and can exchange routing information using BGP Update messages.






17. A security standard that includes both TKIP and AES and was ratified by the Wi-Fi Alliance.






18. 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.






19. An OSPF router that connects to the backbone area and to one or more non-backbone area.






20. A group of devices on one or more LANs that are configured (using management software) so that they can communicate as if they were attached to the same wire - when - in fact - they are located on a number of different LAN segments. Because VLANs are






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






22. A queuing tool's logic by which it selects the next packet to dequeue from its many queues.






23. Clear To Send.






24. In IP routing - a term referring to the building of IP routing tables by IP routing protocols.






25. With OSPF - the encapsulation of OSPF messages inside IP - to a router with which no common subnet is shared - for the purpose of either mending partitioned areas or providing a connection from some remote area to the backbone area.






26. The destination VLAN for an RSPAN session.






27. Typically used by protocols that perform flow control (like TCP) - a TCP window is the number of bytes that a sender can send before it must pause and wait for an acknowledgement of some of the yet-unacknowledged data.






28. 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.






29. 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.






30. A BGP peer connection between two routers inside the same ASN - but in different confederation sub-autonomous systems.






31. The Cisco IOS feature by which special short key sequences can be used to move the cursor inside the current command line to more easily change a command.






32. The range 232.0.0.0 through 232.255.255.255 that is allocated by IANA for SSM destination addresses and is reserved for use by source-specific applications and protocols.






33. Finish time.






34. Provider router.






35. Dynamic ARP Inspection.






36. Class of Service.






37. A definition that determines the data structure and information implied by a particular LSA.






38. A BGP path attribute that is communicated throughout a single AS to signify which route of multiple possible routes is the best route to be taken when leaving that AS. A larger value is considered to be better.






39. 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.






40. The IPv6 protocol used for the discovery of which hosts are listening for which multicast IP addresses for IPv6.






41. EAP over LAN.






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






43. Defined in RFC 2289 - a mechanism by which a shared key and a secret key together feed into a hash algorithm - creating a password that is transmitted over a network. Because the shared key is not reused - the hash value is only valid for that indivi






44. With EIGRP - a router sharing the same primary subnet - with which Hellos are exchanged - parameters match - and with which routes can be exchanged.






45. A WRED process by which WRED discards all newly arriving packets intended for a queue - based on whether the queue's maximum threshold has been exceeded.






46. When a Query is received from a router - each host randomly picks a time between 0 and the Maximum Response Time period to send a Report. When the host with the smallest time period first sends the Report - the rest of the hosts suppress their report






47. VLAN Trunking Protocol.






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






49. A protocol used for reliable multicast and unicast transmissions. Used by EIGRP.






50. A numeric value between 0 and 32 (inclusive) that defines the number of beginning bits in an IP address for which all IP addresses in the same group have the same value. Alternative: The number of binary 1s beginning a subnet mask - written as a deci