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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 SPF calculation for which a router does not need to run SPF for any LSAs inside its area - but instead runs a very simple algorithm for changes to LSAs outside its own area.






2. Dynamic Multipoint VPN.






3. With private VLANs - a port that can send and receive frames with all other ports in the private VLAN.






4. Cisco IOS IP Service Level Agent feature. Provides for router-generated information useful for verifying network performance on a scheduled basis - and the associated reporting functions.






5. Out of Frame.






6. 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.






7. Cisco-proprietary STP feature in which a switch port - known to not have a bridge or switch attached to it - transitions from disabled to forwarding state without using any intermediate states.






8. WRED compares this setting to the average queue depth to decide whether packets should be discarded. All packets are discarded if the average queue depth rises above this maximum threshold.






9. A type of OSPF stub area for which neither external (type 5) LSAs are introduced - nor type 3 summary LSAs; instead - the ABRs originate and inject default routes into the area. External routes cannot be injected into a totally stubby area.






10. A 3-bit field in an ISL header used for marking frames. Also - used generically to refer to either the ISL CoS field or the 802.1Q User Priority field.






11. A term referring to the MQC policy-map command and its related subcommands - which are used to apply QoS actions to classes of packets.






12. Another name for Superframe.






13. Link-State Refresh. A timer that determines how often the originating router should reflood an LSA - even if no changes have occurred to the LSA.






14. Authentication - authorization - and accounting.






15. 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






16. 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.






17. An attack by which the attacker initiates many TCP connections to a server - but does not complete the TCP connections - by simply not sending the third segment normally used to establish the connection. The server may consume resources and reject ne






18. 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.






19. An Internet standard authentication protocol that uses secure hashes and a three-way handshake to perform authentication over a PPP link.






20. A type of OSPF NSSA area for which neither external (type 5) LSAs are introduced - nor type 3 summary LSAs; instead - the ABRs originate and inject default routes into the area. External routes can be injected into a totally NSSA area.






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






22. A technology that sends a high-speed data stream over multiple subcarriers simultaneously. It is highly immune to multipath interference. 802.11a and 802.11g specify the use of OFDM.






23. The All OSPF Routers multicast IP address - listened for by all OSPF routers.






24. Request-to-send/clear-to-send.






25. A message that each host sends - either in response to a router Query message or on its own - to all multicast groups for which it would like to receive multicast traffic.






26. The one VLAN on an 802.1Q trunk for which the endpoints do not add the 4-byte 802.1Q tag when transmitting frames in that VLAN.






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






28. Designated router.






29. The 32-bit number used to represent an OSPF router.






30. An 802.1d STP port state in which the port sends and receives frames.






31. A BGP ASN whose value is between 64 -512 and 65 -535. These values are not assigned for use on the Internet - and can be used for private purposes - typically either within confederations or by ISPs to hide the ASN used by some customers.






32. 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.






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






34. An STP timer that dictates the interval at which the Root switch generates and sends Hello BPDUs.






35. In MPLS - a term used to define a label that an LSR learned from a neighboring LSR.






36. An NTP mode in which two or more NTP servers mutually synchronize their clocks.






37. Flush timer.






38. The algorithm used by OSPF and IS-IS to compute routes based on the LSDB.






39. The OSPF data structure that describes topology information.






40. A mechanism in which VLAN information can extend over another set of 802.1Q trunks by tunneling the original 802.1Q traffic with another 802.1Q tag. It allows a service provider to support transparent VLAN services with multiple customers - even if t






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






42. Version 6 of the IP protocol - which uses 128-bit IP addresses.






43. Forward Explicit Congestion Notification.






44. Defined in IEEE 802.1w - a specification to enhance the 802.1d standard to improve the speed of STP convergence.






45. An MQC-based feature of IOS that is used to classify and mark packets for QoS purposes.






46. 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.






47. An MPLS VPN term referring to an LSR that has no direct customer connections - meaning that the P router does not need any visibility into the VPN customer's IP address space.






48. The single port on each nonroot switch upon which the best Hello BPDU is received.






49. Another term for Port Address Translation. See PAT.






50. On a serial cable - the pin lead set by the DTE to tell the DCE that the DTE wants to send data.