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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. Type of Service byte.






2. With OSPF - the timer used to determine when a neighboring router has failed - based on a router not receiving any OSPF messages - including Hellos - in this timer period.






3. Flush timer.






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






5. An attack by which the attacker initiates many TCP connections to a server - but does not complete the TCP connections - by simply not sending the third segment normally used to establish the connection. The server may consume resources and reject ne






6. A term referring to the MQC service-policy command - which is used to enable a policy map on an interface.






7. A 3-bit field in an 802.1Q header used for marking frames.






8. A method for optimizing the flow of multicast IP packets passing through a LAN switch. The switch using IGMP snooping examines IGMP messages to determine which ports need to receive traffic for each multicast group.






9. A term referring to EIGRP's internal processing logic.






10. A calculation of the length of the AS_PATH PA - which includes 1 for each number in the AS_SEQ - 1 for an entire AS_SET segment - and possibly other considerations.






11. Expedited Forwarding.






12. Multicast Open Shortest Path First.






13. 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.






14. The process of running the SPF algorithm against the LSDB - with the result being the determination of the current best route(s) to each subnet.






15. In 802.1X - the computer that stores usernames/passwords and verifies that the correct values were submitted before authenticating the user.






16. The first 6 bits of the DS field - used for QoS marking.






17. Also known as triggered updates.






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






19. Reported distance or Route Distinguisher.






20. A term used with Cisco LAN switches - referring to a queue treated with strict-priority scheduling.






21. A well-known discretionary BGP path attribute that flags a route as being a summary route.






22. With RIP - a per-route timer that increases until the router receives a routing update that confirms the route is still valid - upon which the timer is reset to 0. If the updates cease - the Invalid timer will grow - until reaching the timer setting






23. A field in the IP header that is decremented at each pass through a Layer 3 forwarding device.






24. 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.






25. Enhanced Local Management Interface.






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






27. A 16-bit number set with a router config-register command. It is used to set several low-level features related mainly to accessing the router and what the router does when powered on.






28. The process of forwarding packets through a router. Also call IP routing.






29. Local Management Interface.






30. Virtual circuit.






31. Time-division multiplexing.






32. In BGP - either external BGP (eBGP) - confederation eBGP - or internal BGP (iBGP). The term refers to a peer connection - and whether the peers are in different ASs (eBGP) - different confederation sub-ASs (confederation eBGP) - or in the same AS (iB






33. 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.






34. Modular QoS CLI.






35. A term used with WFQ for the number assigned to a packet as it is enqueued into a WFQ. WFQ schedules the currently lowest SN packet next.






36. Request-to-send/clear-to-send.






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






38. 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






39. Inter-Switch Link.






40. Sent by a PIM router to its upstream router to either request that the upstream router forward the group traffic or stop forwarding the group traffic that is currently being forwarded. If a PIM router wants to start receiving the group traffic - it l






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






42. The PDU used by a particular layer of a networking model - with x defining the layer.






43. Copper cable with RJ-45 connectors in which a twisted pair at pins 1 -2 on the first end of the cable is connected to pins 3 -6 on the other end - with a second pair connected to pins 3 -6 on the first end and pins 1 -2 on the other end.






44. 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.






45. An Internet standard authentication protocol that uses clear-text passwords and a two-way handshake to perform authentication over a PPP link.






46. 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.






47. A logical group of content engines running WCCP between them. The lead content engine determines the traffic distribution within the cluster - for optimum performance and scalability.






48. Link Control Protocol.






49. An MPLS term referring to the MPLS label just before the IP header. Also called the VPN label when implementing MPLS VPNs.






50. After a host receives an IGMP Query - the amount of time (default - 10 seconds) the host has to send the IGMP Report.






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