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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. Ethernet feature in which a NIC or Ethernet port can only transmit or receive at the same instant in time - but not both. Half duplex is required when a possibility of collisions exists.






2. One-time password.






3. Tag Distribution Protocol.






4. A multicast routing protocol that forwards the multicast traffic only when requested by a downstream router.






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






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






7. Label Forwarding Information Base.






8. 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.






9. Digital subscriber line - a common Internet service type for residential and business customers.






10. A router feature used when a router sees an ARP request searching for an IP host's MAC - when the router believes the IP host could not be on that LAN because the host is in another subnet. If the router has a route to reach the subnet where the ARP-






11. Enhances RP redundancy by providing a method for RPs to exchange multicast source information - even between multicast domains.






12. Internet Group Management Protocol.






13. An Internet standard serial data-link protocol - used on synchronous and asynchronous links - that provides data-link framing - link negotiation - Layer 3 interface features - and other functions.






14. An IPv6/IPv4 tunneling method that is designed for transporting IPv6 packets within a site where a native IPv6 infrastructures is not available.






15. 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.






16. A wireless LAN that only includes wireless users and no access points. 802.11 data frames in an ad hoc network travel directly between wireless users.






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






18. With RIP - a per-route timer (default 180 seconds) that begins when a route's metric changes to a larger value.






19. A type of AS_PATH segment consisting of an unordered list of ASNs consolidated from component subnets of a summary BGP route.






20. An MPLS VPN term referring to a router at a customer site that does not implement MPLS.






21. Multilink PPP.






22. Port Aggregation Protocol.






23. An EIGRP message that is used by a router to notify its neighbors when the router is gracefully shutting down.






24. An address type in IPv6 networks that is used only on the local link and never beyond that scope.






25. The original standardized set of generic SNMP MIB variables - defined in RFC 1158.






26. A BGP feature that defines the IP TTL field value in packets sent between two eBGP peers. This feature is required when using IP addresses other than the interface IP address on the link between peers.






27. Ethernet MAC address that represents all devices on the LAN.






28. Differentiated Services Code Point.






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






30. Defined in IEEE 802.1AD - defines a messaging protocol used to negotiate the dynamic creation of PortChannels (EtherChannels) and to choose which ports can be placed into an EtherChannel.






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






32. Reported distance or Route Distinguisher.






33. A neighbor state that signifies the other router has reached neighbor status - having passed the parameter check.






34. Router Advertisement.






35. A BGP path attribute that allows routers in one AS to set a value and advertise it into a neighboring AS - impacting the decision process in that neighboring AS. A smaller value is considered better. Also called the BGP metric.






36. Weighted random early detection.






37. A Cisco-proprietary LMI protocol - implemented in Cisco WAN switches and routers - through which the switch can inform the router about parameters for each VC - including CIR - Bc - and Be.






38. Excess Burst.






39. Common Spanning Tree.






40. The specific frequency subband on which the radio card or access point is operating. The RF channel is set in the access point or ad hoc stations.






41. The difference between the measured signal power and the noise power that a particular receiver sees at a given time. Higher SNRs generally indicate better performance.






42. An 802.1w RSTP port state in which the port is not the Root Port but is available to become the root port if the current root port goes down.






43. Hot Standby Router Protocol.






44. Operates in dense mode and depends on its own unicast routing protocol that is similar to RIP to perform its multicast functions.






45. Version 6 of the IP protocol - which uses 128-bit IP addresses.






46. A reserved value for the BGP COMMUNITY path attribute that implies that the route should not be advertised outside the local AS.






47. Permanent virtual circuit.






48. Sequence number.






49. A Frame Relay address used in Frame Relay headers to identify the VC






50. A characterization of a BGP path attribute in which all BGP implementations must support and understand the attribute (well known) - and all BGP Updates must include the attribute (mandatory).