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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. The speed at which the access link is clocked. This choice affects the price of the connection and many aspects of traffic shaping and policing - compression - quality of service - and other configuration options.






2. The first 6 bits of the DS field - used for QoS marking.






3. A 3-bit field in an 802.1Q header used for marking frames.






4. Prefix list.






5. From the perspective of one routing protocol - a route that was learned by using route redistribution.






6. With EIGRP - the metric value for the lowest-metric route to a particular subnet.






7. A name used for DS1 lines inside the North American TDM hierarchy.






8. The range 232.0.0.0 through 232.255.255.255 that is allocated by IANA for SSM destination addresses and is reserved for use by source-specific applications and protocols.






9. 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






10. Expedited Forwarding.






11. A routing protocol feature by which the routing update includes the entire set of routes - even if some or all of the routes are unchanged.






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






13. Extended Superframe.






14. An IOS feature in which multiple routing tables and routing forwarding instances exist in a single router - with interfaces being assigned to one of the several VRFs. This feature allows separating of routing domains inside a single router platform.






15. A name used for DS1 lines inside the European TDM hierarchy.






16. 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.






17. Low-latency queuing.






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






19. Advanced Encryption Standard A superior encryption mechanism that is part of the 802.11i standard and has much stronger security than TKIP.






20. A neighbor state that signifies the other router has reached neighbor status - having passed the parameter check. The FIB entry details the information needed for forwarding: the next-hop router and the outgoing interface - in an optimized mtrie stru






21. Border Gateway Protocol.






22. Carrier sense multiple access with collision detection. A media-access mechanism where devices ready to transmit data first check the channel for a carrier. If no carrier is sensed for a specific period of time - a device can transmit. If two devices






23. In IPv6 - the Neighbor Discovery message used by an IPv6 node to send information about itself to its neighbors.






24. A feature of Ethernet NICs. When the NIC transmits an electrical signal - it "loops" the transmitted electrical current back onto the receive pair. By doing so - if another NIC transmits a frame at the same time - the NIC can detect the overlapping r






25. Regeneration of the Layer 2 encapsulation removed from frames forwarded in a SPAN session.






26. With EIGRP - a timer started when a reliable (to be acknowledged) message is transmitted. For any neighbor(s) failing to respond in its RTO - the RTP protocol causes retransmission. RTO is calculated based on SRTT.






27. A mechanism that counters collisions caused by hidden nodes. If enabled - the station or access point must first send an RTS frame and receive a CTS frame before sending each data frame.






28. The Lempel Ziv STAC compression algorithm is used in Frame Relay networks to define dynamic dictionary entries that list a binary string from the compressed data and an associated smaller string that represents it during transmission






29. Allows the router to act as an inline IPS - doing deep packet inspection.






30. Protocol Independent Multicast dense-mode routing protocol.






31. A router that is allowed to receive a packet from an OSPF router and then forward the packet to another OSPF router.






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






33. An E-LSR in an MPLS VPN network whose role in a particular discussion is to receive labeled packets from other LSRs and then forward the packets as unlabeled packets to CE routers.






34. Another name for Superframe.






35. Operation - Administration - and Maintenance.






36. A category used by a policer to classify packets relative to the traffic contract. With two-color policers - these packets are considered to be above the contract; for three-color - these packets are above the Bc setting - but within the Be setting.






37. Burst With shaping and policing - the number of additional bits that may be sent after a period of relative inactivity.






38. Time-division multiplexing.






39. 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.






40. A method for optimizing the flow of multicast IP packets passing through a LAN switch. The switch using IGMP snooping examines IGMP messages to determine which ports need to receive traffic for each multicast group.






41. With PIM on a multiaccess network - the PIM router with the highest IP address on the subnet. It is also the IGMPv1 Querier. The DR is responsible for the following tasks: - Sending PIM register and PIM join and prune messages toward the RP to infor






42. A wireless LAN that offers connections to the Internet from public places - such as airports - hotels - and coffee shops.






43. Reverse ARP.






44. 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.






45. A specification for the 64-bit interface ID in an IPv6 address - composed of the first half of a MAC address - hex FFFE - and the last half of the MAC.






46. Often used synonymously with neighbor - but with emphasis on the fact that all required parameters match - allowing routing updates to be exchanged between the routers.






47. Data terminal equipment.






48. Excess Burst.






49. The most significant bit in the most significant byte of an Ethernet MAC address - its value implies that the address is a unicast MAC address (binary 0) or not (binary 1).






50. Any other router - sharing a common data link - with which a router exchanges Hellos - and for which the parameters in the Hello pass the parameter-check process.