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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. Class-Based Marking.






2. A T1 alarm state that occurs when a device receives a Yellow Alarm signal. This typically means that the device on the other end of the line is in a Red Alarm state.






3. In MPLS VPNs - a 64-bit Extended Community path attribute attached to a BGP route for the purpose of controlling into which VRFs the route is added.






4. The process of taking a PDU from some other source and placing a header in front of the original PDU - and possibly a trailer behind it.






5. Rendezvous point.






6. The process of forwarding packets through a router. Also called IP forwarding.






7. 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.






8. Generic routing encapsulation.






9. 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.






10. A message sent by each host - either in response to a router query or on its own - to all multicast groups for which it would like to receive multicast traffic. The destination address on the Report is 224.0.0.22 - and a host can specify the source a






11. A communication protocol between hosts and a multicast router by which routers learn of which multicast groups' packets need to be forwarded onto a LAN.






12. 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.






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






14. An FRF standard for LFI for VoFR (FRF.11) VCs - in which all voice frames are interleaved in front of data frames' fragments.






15. A type of AS_PATH segment consisting of an ordered list of ASNs through which the route has been advertised.






16. In the context of SNMP - the Trap command is sent by an SNMP agent - to a manager - when the agent wants to send unsolicited information to the manager. Trap is not followed by a Response message from the receiving SNMP manager.






17. The condition in which a route has been in an EIGRP active state for longer than the router's Active timer.






18. An EIGRP router's reaction to an input event - leading to the use of a feasible successor or going active on a route.






19. One of the two modes of MDRR - in which the priority queue is serviced between each servicing of the non-priority queues.






20. A WRED process by which WRED discards all newly arriving packets intended for a queue - based on whether the queue's maximum threshold has been exceeded.






21. Used by a policer to classify packets relative to the traffic contract. These packets are considered to be above the traffic contract in all cases.






22. Defined in FRF.11 - an FR VC that uses a slightly varied header - as compared with FRF.3 data VCs - to accommodate voice payloads directly encapsulated inside the Frame Relay LAPF header.






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






24. Prefix list.






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






26. Neighbor Solicitation.






27. When a PIM-SM router switches from RPT to SPT - it sends a PIM-SM Prune message for the source and the group with the RP bit set to its upstream router on the shared tree. RFC 2362 uses the notation PIM-SM (S - G) RP-bit Prune for this message.






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






29. A T1 alarm state that occurs when the receiver can no longer consistently identify the frame. See LOF.






30. When subnetting a class A - B - or C address - the subnet for which all subnet bits are binary 0.






31. Reported distance or Route Distinguisher.






32. The process of combining multiple synchronized input signals over a single medium by giving each signal its own time slot - and then breaking out those signals.






33. The OSPF data structure that describes topology information.






34. A TCP variable that defines the largest number of bytes allowed in a TCP segment's Data field. The calculation does not include the TCP header. With a typical IP MTU of 1500 bytes - the resulting default MSS would be 1460. TCP hosts must support an M






35. A Cisco-proprietary feature by which multiple routers can provide interface IP address redundancy - as well as cause a set of clients to load-balance their traffic across multiple routers inside the GLBP group.






36. The MPLS feature by which an ingress E-LSR copies the IP packet's IP TTL field into the MPLS header's TTL field.






37. A T1 alarm state that occurs when a device has detected a local LOF/LOS/AIS condition. The device in Red alarm state then sends a Yellow alarm signal.






38. 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.






39. An NTP mode in which an NTP host adjusts its clock in relation to an NTP server's clock.






40. The destination VLAN for an RSPAN session.






41. Defined in RFCs 1517-1520 - a scheme to help reduce Internet routing table sizes by administratively allocating large blocks of consecutive classful IP network numbers to ISPs for use in different global geographies. CIDR results in large blocks of n






42. Out of Frame.






43. Link-state advertisement.






44. A conceptual model used by shapers and policers to represent their internal logic.






45. With DiffServ - a DSCP marking and a related set of QoS actions applied to packets that have that marking.






46. The encapsulation of EAP messages directly inside LAN frames. This encapsulation is used between the supplicant and the authenticator.






47. The Cisco IOS feature by which special short key sequences can be used to move the cursor inside the current command line to more easily change a command.






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






49. A set of DiffServ PHBs that defines 12 DSCP values - with four queuing classes and three drop probabilities within each queuing class.






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