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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 technology that enables frequency reuse. Two variants exist: frequency hopping (FHSS) and direct sequence (DSSS). Both techniques spread the signal power over a relatively wide portion of the frequency spectrum over time - to reduce interference be






2. Enhanced Local Management Interface.






3. Defined in RFC 1631 - a method of translating IP addresses in headers with the goal of allowing multiple hosts to share single public IP addresses - thereby reducing IPv4 public address depletion.






4. A BGP router in an AS that uses route reflectors - but that is not aided by any RR server.






5. An optimized Layer 3 forwarding path through a router or switch. CEF optimizes routing table lookup by creating a special - easily searched tree structure based on the contents of the IP routing table. The forwarding information is called the Forward






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






7. Local Management Interface.






8. 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.






9. Challenge Handshake Authentication Protocol.






10. 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.






11. Inside telcos' original TDM hierarchy - the smallest unit of transmission at 64 kbps.






12. Label switched path.






13. VTP pruning.






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






15. Reverse ARP.






16. A logical concept that represents the path over which frames travel between DTEs. VCs are particularly useful when comparing Frame Relay to leased physical circuits.






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






18. Cisco Wireless LAN Solution Engine.






19. Bipolar Violation.






20. A method of collecting traffic received on a switch port or a VLAN and sending it to specific destination ports on the same switch.






21. Per-Hop Behavior.






22. Maximum Segment Size.






23. Authentication - authorization - and accounting.






24. A Cisco IOS queuing tool most notable for its reservation of a minimum bandwidth for each queue.






25. The process - defined by FRF.5 and FRF.8 - for combining ATM and FR technologies for an individual VC.






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






27. A type of logic for how a router uses a default route. A convention for discussing and thinking about IP addresses by which class A - B - and C default network prefixes (of 8 - 16 - and 24 bits - respectively) are considered.






28. Alarm Indication Signal. With T1s - the practice of sending all binary 1s on the line in reaction to problems - to provide signal transitions and allow recovery of synchronization and framing.






29. An 802.1w RSTP port state in which the port is not the Root Port but is available to become the root port if the current root port goes down.






30. 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.






31. Feasible distance.






32. A set of QoS RFCs that redefines the IP header's ToS byte - and suggests specific settings of the DSCP field and the implied QoS actions based on those settings.






33. Any OSPF neighbor for which the database flooding process has completed.






34. 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






35. A message sent by the multicast router - by default every 60 seconds - on each of its LAN interfaces to determine whether any host wants to receive multicast traffic for any group.






36. Data Carrier Detect.






37. Frequency hopping spread spectrum.






38. VLAN Trunking Protocol.






39. Tag Distribution Protocol.






40. Exterior Gateway Protocol.






41. A Cisco IOS queuing tool that uses MQC configuration commands - reserves a minimum bandwidth for some queues - provides high-priority scheduling for some queues - and polices those queues to prevent starvation of lower-priority queues during interfac






42. A type of IPv4 and IPv6 traffic designed primarily to provide one-to-many connectivity but unlike broadcast - has the capability to control the scope of traffic distribution.






43. Committed information rate.






44. Finish time.






45. 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-






46. Neighbor Advertisement.






47. Layer x PDU.






48. Port Aggregation Protocol.






49. Designed to solve the problems of multicast duplication and multicast routing loops. For every multicast packet received - a multicast router examines its source IP address - consults its unicast routing table - determines which interface it would us






50. AutoQoS is a macro that creates and applies quality of service configurations based on Cisco best-practice recommendations.