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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. A wireless LAN that includes the use of access points. Infrastructure mode connects wireless users to a wired network and allows wireless users to roam throughout a facility between different access points. All 802.11 data frames in an infrastructure






2. Neighbor Solicitation.






3. A 3-tuple consisting of an IP address - port number - and transport layer protocol. TCP connections exist between a pair of sockets.






4. 16 bits between the interface ID and global routing prefix in an IPv6 global address - used for subnet assignment inside an enterprise.






5. Another name for 802.1Q-in-Q. See 802.1Q-in-Q.






6. DCE devices are one of two devices on either end of a communications circuit - specifically the device with more control over the communications. Frame Relay switches are DCE devices. DCEs are also known as data circuit-terminating equipment (DTE).






7. 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-






8. Data-link connection identifier.






9. Aka network layer reachability information.






10. With PIM on a multiaccess network - the PIM router with the highest IP address on the subnet. It is also the IGMPv1 Querier. The DR is responsible for the following tasks: - Sending PIM register and PIM join and prune messages toward the RP to infor






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






12. Digital Signal Level 0.






13. Used by WRED to calculate the maximum percentage of packets discarded when the average queue depth falls between the minimum and maximum thresholds.






14. Aka Rapid Per-VLAN Spanning Tree Plus.






15. Network Address Translation-Protocol Translation.






16. An enhanced version of WEP that is part of the 802.11i standard and has an automatic key-update mechanism that makes it much more secure than WEP. TKIP is not as strong as AES in terms of data protection.






17. The operating mode of shaped round-robin that provides behavior like CBWFQ with bandwidth allocated between different traffic classes by a relative amount rather than absolute percentage of the available bandwidth.






18. A feature of Ethernet NICs. When the NIC transmits an electrical signal - it "loops" the transmitted electrical current back onto the receive pair. By doing so - if another NIC transmits a frame at the same time - the NIC can detect the overlapping r






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






20. Layer x PDU.






21. The command used to initialize a SPAN or RSPAN session on a Catalyst switch.






22. Link-State Acknowledgment.






23. Differentiated Services Code Point.






24. The process of changing the electrical characteristics on a transmission medium - based on defined rules - to represent data.






25. On a serial cable - the pin lead set by the DCE to tell the DTE that the DTE is allowed send data.






26. Multilink PPP.






27. A small FIFO queue associated with each router's physical interface - for the purpose of making packets available to the interface hardware - removing the need for a CPU interrupt to start sending the next packet out the interface.






28. A Cisco IOS configuration tool for routing protocols by which routing updates may be filtered.






29. The number of beacons that governs how often multicast frames are sent over a wireless LAN.






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






31. Reduces the bandwidth necessary for radio management information - such as access point status messages - that is sent across the network by eliminating redundant management information.






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






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






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






35. A message sent by a multicast router - by default every 125 seconds - on each of its LAN interfaces to determine whether any host wants to receive multicast traffic for any group.






36. A BGP path attribute that implies how the route was originally injected into some router's BGP table.






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






38. The signal strength of the RF signal at the output of the radio card or access point transmitter - before being fed into the antenna. Measured in milliwatts - watts - or dBm.






39. A state variable kept by a router for each known neighbor or potential neighbor.






40. In SNMP - the process of a manager using successive GetNext and GetBulk commands to discover the exact MIB structure supported by an SNMP agent. The process involves the manager asking for each successive MIB leaf variable.






41. An optional nontransitive BGP path attribute that lists the route reflector cluster IDs through which a route has been advertised - as part of a loop-prevention process similar to the AS_PATH attribute.






42. A name used for DS3 lines inside the North American TDM hierarchy.






43. A component that interfaces with a phone using IP and provides connections to the Public Switched Telephone Network (PSTN).






44. UniDirectional Link Detection.






45. A standard (RFC 903) protocol by which a LAN-attached host can dynamically broadcast a request for a server to assign it an IP address. See also ARP.






46. 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.






47. 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.






48. Out of Frame.






49. A multicast routing protocol whose default action is to flood multicast packets throughout a network.






50. A wireless LAN physical layer that operates at up to 11-Mbps data rates using DSSS in the 2.4-GHz band.