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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. An Internet standard (RFC 1305) that defines the messages and modes used for IP hosts to synchronize their time-of-day clocks.






2. With private VLANs - a secondary VLAN in which the ports can send and receive frames only with promiscuous ports in the primary VLAN.






3. A commonly used name for Multi-VRF CE.






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






5. Defined in RFC 2091 - the extensions define how RIP may send a full update once - and then send updates only when routes change - when an update is requested - or when a RIP interface changes state from down to up.






6. RFC 1918-defined IPv4 network numbers that are not assigned as public IP address ranges - and are not routable on the Internet. Intended for use inside enterprise networks.






7. Switched virtual circuit.






8. 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.






9. A message sent by a router - after receiving a Leave message from a host - to determine whether there are still any active members of the group. The router uses the group address as the destination address.






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






11. 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.






12. Cell Loss Priority.






13. Service set identifier.






14. A BGP path attribute that lists ASNs through which the route has been advertised. The AS_PATH includes four types of segments: AS_SEQ - AS_SET - AS_CONFED_SEQ - and AS_CONFED_SET. Often - this term is used synonymously with AS_SEQ






15. 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.






16. Multilink PPP.






17. An FRF standard for Frame Relay-to-ATM Service Interworking in which both DTEs use Frame Relay - with ATM in between.






18. An early T1 framing standard.






19. Temporal Key Integrity Protocol.






20. A bit inside the Frame Relay header that - when set - implies that congestion occurred in the direction opposite (or backward) as compared with the direction of the frame.






21. With EIGRP - for a particular route - the case in which the RD is lower than the FD.






22. An optional contention-free 802.11 access protocol that requires the access point to poll wireless stations before they are able to send frames. Not commonly implemented.






23. 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






24. The most recent standardized set of generic SNMP MIB variables - defined in RFC 1213 and updated in RFCs 2011 through 2013.






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






26. Virtual LAN.






27. A bit in the LAPF Frame Relay header that - when set to 1 - implies that the frame has experienced congestion.






28. A Cisco IOS feature that performs deep packet inspection to classify packets based on application layer information.






29. 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






30. A local Cisco-proprietary BGP setting that is not advertised to any peers. A larger value is considered to be better.






31. External BGP.






32. In an IOS confederation configuration - the actual ASN as seen by eBGP peers.






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






34. Receivers subscribe to an (S -G) channel when they request to join a multicast group. That is - they specify the unicast IP address of their multicast source and the group multicast address. SSM is typically used in very large multicast deployments s






35. Committed information rate.






36. The IEEE standardized protocol for VLAN trunking.






37. The characterization of how far EIGRP Query messages flow away from the router that first notices a failed route and goes active for a particular subnet.






38. Area Border Router. An OSPF router that connects to the backbone area and to one or more non-backbone areas.






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






40. 64 bits at the end of an IPv6 global address - used to uniquely identify each host in a subnet.






41. 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.






42. The combination of PVST+ and Rapid Spanning Tree. It provides subsecond convergence time and is compatible with PVST+ and MSTP.






43. 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.






44. An MPLS term referring to any device that can forward packets that have MPLS labels.






45. Maximum Response Time.






46. An Internet standard authentication protocol that uses secure hashes and a three-way handshake to perform authentication over a PPP link.






47. Backup designated router.






48. A type of OSPF stub area that - unlike stub areas - can inject external routes into the NSSA area.






49. Virtual circuit.






50. A Cisco IOS queuing tool most notable for its reservation of a minimum bandwidth for each queue.