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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 OSPF external route for which internal OSPF cost is not added to the cost of the route as it was redistributed into OSPF.






2. A set of parameters for CBAC to perform in its traffic inspection process.






3. Protects against problems caused by unidirectional links between two switches. Watches for loss of received Hello BPDUs - in which case it transitions to a loop-inconsistent state instead of transitioning to a forwarding state.






4. A dotted-decimal number used to help define the structure of an IP address. The binary 0s in the mask identify the host portion of an address - and the binary 1s identify either the combined network and subnet part (when thinking classfully) or the n






5. Any occurrence that could change a router's EIGRP topology table - including a received Update or Query - a failed interface - or the loss of a neighbor.






6. 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.






7. An FRF standard for payload compression.






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






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






10. External BGP.






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






12. Another name for Superframe.






13. On a serial cable - the pin lead set by the DTE to imply that the DTE is ready to signal using pin leads.






14. Secure Copy Protocol - one of the many ways of transferring files to and from Cisco IOS routers and switches.






15. Sent by a PIM router - by default every 30 seconds - on every interface on which PIM is configured to discover neighbors - establish adjacency - and maintain adjacency.






16. Each 802.11 station passively monitors each RF channel for a specific amount of time and listens for beacons. Stations use the signal strengths of found beacons to determine the access point or ad hoc network with which to attempt association.






17. Switched virtual circuit.






18. A type of spread spectrum that spreads RF signals over the frequency spectrum by transmitting the signal at different frequencies according to a hopping pattern. One of the original 802.11 physical layers used FHSS to offer data rates of 1 and 2 Mbps






19. VTP pruning.






20. An interface on a Cisco IOS-based switch that is treated as if it were an interface on a router.






21. A term referring to the process of applying the Message Digest 5 (MD5) algorithm to a string - resulting in another value. The original string cannot be easily computed even when the hash is known - making this process a strong method for storing pas






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






23. A message that each host sends - either in response to a router Query message or on its own - to all multicast groups for which it would like to receive multicast traffic.






24. Gateway Load Balancing Protocol.






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






26. Cisco IOS IP Service Level Agent feature. Provides for router-generated information useful for verifying network performance on a scheduled basis - and the associated reporting functions.






27. A Cisco IOS feature that provides reporting information to a NetFlow aggregator based on traffic flows.






28. An issue whereby parts of the RF signal take different paths from the source to the destination - which causes direct and reflected signals to reach the receiver at different times - and corresponding bit errors.






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






30. A characterization of a BGP path attribute in which all BGP implementations must support and understand the attribute (well known) - but BGP Updates can either include the attribute or not depending on whether a related feature has been configured (d






31. A Cisco IOS interface setting - as a percentage between 1 and 99 - that defines how much of the interface's bandwidth setting may be allocated by a queuing tool. The default value is 75 percent.






32. A CBWFQ and LLQ term referring to the bandwidth on an interface that is neither reserved nor allocated via a priority command.






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






34. The second byte of the IP header - formerly known as the ToS byte and redefined by DiffServ.






35. An alternative software loaded into a Cisco router - used for low-level debugging and for password recovery.






36. Jargon used to refer to the first of two buckets in the dual token bucket model; its size is Bc.






37. 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.






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






39. An STP timer that dictates the interval at which the Root switch generates and sends Hello BPDUs.






40. The process of installing a multicast application; also referred to as launching an application.






41. Multicast Listener Discovery.






42. A NAT term describing an IP address representing a host that resides inside the enterprise network - with the address being used in packets outside the enterprise network.






43. A network/subnet to which only one OSPF router is connected.






44. 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.






45. Modular QoS CLI.






46. Ethernet feature in which a NIC or Ethernet port can both transmit and receive at the same instant in time. It can be used only when there is no possibility of collisions. Loopback circuitry on NIC cards is disabled to use full duplex.






47. The notation in a Cisco IOS IP routing table that identifies the route used by that router as the default route.






48. Neighbor Solicitation.






49. Defines a particular behavior for FTP regarding the establishment of TCP data connections. In passive mode - an FTP server uses the FTP PORT command - over the FTP control connection - to tell the FTP client the port on which the server will be liste






50. 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.