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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 attack similar to a smurf attack - but using packets for the UDP Echo application instead of ICMP.






2. An IEEE standard that - when used with EAP - provides user authentication before their connected switch port allows the device to fully use the LAN.






3. Provides dynamic inspection of traffic as it traverses the router. It uses Context-Based Access Control (CBAC) to look deeper into a packet than an access list can. It tracks outbound traffic and dynamically allows in responses to that traffic.






4. The data structure used by OSPF to hold LSAs.






5. In IP routing - a term referring to the process of forwarding packets through a router.






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






7. A serial-line encoding standard that substitutes Bipolar Violations in a string of eight binary 0s to provide enough signal transitions to maintain synchronization.






8. A DiffServ PHB - based on DSCP EF (decimal 46) - that provides low-latency queuing behavior as well as policing protection to prevent EF traffic from starving queues for other types of traffic.






9. A type of routing protocol convergence event in which the metric for a route increases slightly over time because of the advertisement of an invalid route.






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






11. The RMON function of tracking a particular variable. RMON events trigger RMON alarms.






12. 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.






13. 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.






14. 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.






15. The content engine in a WCCP cluster - which determines how traffic will be distributed within the cluster.






16. Border Gateway Protocol.






17. Diffusing Update Algorithm.






18. A problem that occurs when an AS does not run BGP on all routers - with synchronization disabled. The routers running BGP may believe they have working routes to reach a prefix - and forward packets to internal routers that do not run BGP and do not






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






20. With RIP - the advertisement of a poisoned route out an interface - when that route was formerly not advertised out that interface due to split horizon rules.






21. A route that is created to represent one or more smaller component routes - typically in an effort to reduce the size of routing and topology tables.






22. IP Control Protocol.






23. A packet-scheduling algorithm used in Cisco switches that provides similar behavior to CBWFQ in shared mode and polices in shaped mode.






24. Variable name for the time interval used by shapers and by CAR.






25. Generic routing encapsulation.






26. 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.






27. The innermost MPLS header in an packet traversing an MPLS VPN - with the label value identifying the forwarding details for the egress PE's VRF associated with that VPN.






28. With a routing update - or routing table entry - the portion of a route that defines the next router to which a packet should be sent to reach the destination subnet. With routing protocols - the Next Hop field may define a router other than the rout






29. VTP pruning.






30. One-time password.






31. Defines a particular behavior for FTP regarding the establishment of data TCP connections. In active mode - the FTP client uses the FTP PORT command - over the FTP control connection - to tell the FTP server the port on which the client should be lis






32. In two-rate policing - the second and higher rate defined to the policer.






33. The MD5-encoded password defined by the enable secret command.






34. Used by RRs to denote the RID of the iBGP neighbor that injected the NLRI into the AS.






35. Controls access to the Internet in public wireless LANs.






36. 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.






37. On a single computer - one layer provides a service to a higher layer. The software or hardware that implements the higher layer requests that the next lower layer perform the needed function.






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






39. A reserved value for the BGP COMMUNITY path attribute that implies that the route should not be advertised to any other peer.






40. Receiver's advertised window.






41. Out of Frame.






42. Cisco Express Forwarding.






43. A type of spread spectrum that spreads RF signals over the frequency spectrum by representing each data bit by a longer code. 802.11b specifies the use of DSSS.






44. A term relating to Cisco LAN switch tail-drop logic - in which multiple tail-drop thresholds may be assigned based on CoS or DSCP - resulting in some frames being discarded more aggressively than others.






45. 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.






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






47. The multicast IP address 224.0.0.6 - listened for by DR and BDR routers.






48. An early standard from AT&T for encoding analog voice as a digital signal for transmission over a TDM network. PCM requires 64 kbps - and is the basis for the DS0 speed.






49. A set of all devices that receive broadcast frames originating from any device within the set. Devices in the same VLAN are in the same broadcast domain.






50. 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.