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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 commonly used name for Multi-VRF CE.






2. A Layer 3 forwarding path through a router that does not optimize the forwarding path through the router.






3. 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.






4. Rapid Spanning Tree Protocol.






5. With EIGRP - the route to each destination for which the metric is the lowest of all known routes to that network.






6. The Frame Relay protocol used between a DCE and DTE to manage the connection. Signaling messages for SVCs - PVC Status messages - and keepalives are all LMI messages.






7. A 3-bit field in an MPLS header used for marking frames.






8. Jargon referring to the minimum value to which adaptive shaping will lower the shaping rate.






9. Multilink PPP.






10. Peak information rate.






11. 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.






12. 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.






13. Shaped round-robin.






14. Multiple Spanning Trees.






15. A list of interspersed alphanumeric literals and metacharacters that are used to apply complex matching logic to alphanumeric strings. Often used for matching AS_PATHs in Cisco routers.






16. The range 233.0.0.0 through 233.255.255.255 that IANA has reserved (RFC 2770) on an experimental basis. It can be used by anyone who owns a registered autonomous system number to create 256 global multicast addresses.






17. 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.






18. Loss of Frame.






19. Alternate Mark Inversion. A serial-line encoding standard that sends alternating positive and negative 3-volt signals for binary 1 - and no signal (0 V) for binary 0.






20. Structure of Management Information.






21. A queuing tool's logic by which it selects the next packet to dequeue from its many queues.






22. This term has two BGP-related definitions. First - it is the normal process in which a router - before sending an Update to an eBGP peer - adds its local ASN to the beginning of the AS_PATH path attribute. Second - it is the routing policy of purpose






23. 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.






24. Orthogonal frequency division multiplexing.






25. An MQC configuration style by which one policy map calls a second policy map. For example - a shaping policy map can call an LLQ policy map to implement LLQ for packets shaped by CB Shaping.






26. A bit in the ATM cell header that - when set to 1 - means that if a device needs to discard frames - it should discard the frames with DE 1 first.






27. 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.






28. Enables a wireless client to securely roam between access points in the same subnet or between subnets with access point handoff times within 50 ms.






29. A strategy for subnetting a classful network for which all masks/prefixes are the same value for all subnets of that one classful network.






30. Multicast Open Shortest Path First.






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






32. The portion of PPP focused on negotiating IP features






33. Bipolar 8 Zero Substitution. A serial-line encoding standard that substitutes Bipolar Violations in a string of eight binary 0s to provide enough signal transitions to maintain synchronization.






34. The first 48 bits of an IPv6 global address - used for efficient route aggregation.






35. Digital Signal Level 1.






36. Single-bit fields in the TCP header. For example - the TCP SYN and ACK code bits are used during connection establishment.






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






38. 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.






39. Differentiated Services.






40. A Cisco-proprietary protocol used to dynamically negotiate whether the devices on an Ethernet segment want to form a trunk and - if so - which type (ISL or 802.1Q).






41. An effort to reduce the query scope with EIGRP - using route summarization or EIGRP stub routers.






42. Local Management Interface.






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






44. Feasible distance.






45. When a wireless station connects to an access point - the access point assigns an association ID (AID) to the station. Various protocols - such as power-save mode - make use of the association ID.






46. The 802.1X function implemented by a switch - in which the switch translates between EAPoL and RADIUS messages in both directions - and enables/disables ports based on the success/failure of authentication.






47. 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.






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






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






50. In the PIM-SM design - the central distribution point to which the multicast traffic is first delivered from the source designated router.







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