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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 integer setting for EIGRP and IGRP. Any FS route whose metric is less than this variance multiplier times the successor's metric is added to the routing table - within the restrictions of the maximum-paths command.






2. 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.






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






4. 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).






5. A term referring to how a router views a BGP peer relationship - in which the peer is in another AS.






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






7. 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.






8. A switch feature that examines incoming frames - comparing the source IP and MAC addresses to the DHCP snooping binding database - filtering frames whose addresses are not listed in the database for the incoming interface.






9. An individual line in an ACL.






10. A basic form of traffic shaping that is applied to an interface or subinterface. By default - it shapes all traffic leaving the interface - but can be modified by using an access control list. The access list controls only what traffic is shaped; GTS






11. A BGP neighbor state in which the BGP neighbors have stabilized and can exchange routing information using BGP Update messages.






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






13. On a serial cable - the pin lead set by the DCE to imply a working link.






14. UniDirectional Link Detection.






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






16. The two computers use a protocol with which to communicate with the same layer on another computer. The protocol defined by each layer uses a header that is transmitted between the computers to communicate what each computer wants to do.






17. RFC 1918-defined IPv4 network numbers that are not assigned as public IP address ranges - and are not routable on the Internet. Intended for use inside enterprise networks.






18. As defined in RFC 3623 - graceful restart allows for uninterrupted forwarding in the event that an OSPF router's OSPF routing process must restart. The router does this by first notifying the neighbor routers that the restart is about to occur; the n






19. Each 802.11 station passively monitors each RF channel for a specific amount of time and listens for beacons. Stations use the signal strengths of found beacons to determine the access point or ad hoc network with which to attempt association.






20. AS number. A number between 1 and 64 -511 (public) and 64 -512 and 65 -535 (private) assigned to an AS for the purpose of identifying a specific BGP domain.






21. Cisco IOS Embedded Event Manager - a feature that monitors events on a router and reports their results. Principally intended to increase availability - EEM provides flexible - granular detection and alerting functions.






22. Finish time.






23. Internal BGP.






24. 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.






25. With OSPF - the encapsulation of OSPF messages inside IP - to a router with which no common subnet is shared - for the purpose of either mending partitioned areas or providing a connection from some remote area to the backbone area.






26. Maximum transmission unit.






27. An IPv6 address type that is used by a number of hosts in a network that are providing the same service. Hosts accessing the service are routed to the nearest host in an anycast environment based on routing protocol metrics.






28. The RMON function of sending a notification to an RMON collector or the console. Triggered by an RMON event.






29. Typically used by protocols that perform flow control (like TCP) - a TCP window is the number of bytes that a sender can send before it must pause and wait for an acknowledgement of some of the yet-unacknowledged data.






30. The ASN assigned to a confederation sub-AS.






31. In MPLS - a term used to define a label that an LSR allocates and then advertises to neighboring routers. The label is considered "local" on the router that allocates and advertises the label.






32. Loss of Signal. A T1 alarm state that occurs when the receiver has not received any pulses of either polarity for a defined time period.






33. Superframe






34. On a single computer - one layer provides a service to a higher layer. The software or hardware that implements the higher layer requests that the next lower layer perform the needed function.






35. PIM-SM is a method of routing multicast packets that requires some intelligence in the network about the locations of receivers so that multicast traffic is not flooded into areas with no receivers. PIM Sparse Mode gets its name from the assumption t






36. 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.






37. Ready To Send.






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






39. The range 239.0.0.0 through 239.255.255.255 that IANA has assigned for use in private multicast domains.






40. Address Resolution Protocol. Defined in RFC 826 - a protocol used on LANs so that an IP host can discover the MAC address of another device that is using a particular IP address.






41. An EIGRP message that informs neighbors about routing information. Update messages require an Ack.






42. Slow Start Threshold.






43. Controls access to the Internet in public wireless LANs.






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






45. Data-link connection identifier.






46. Another name for 802.1Q-in-Q. See 802.1Q-in-Q.






47. A mapping between each DSCP value and a WRED threshold - often used in Cisco LAN switches when performing WRED.






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






49. Jargon used to refer to the first of two buckets in the dual token bucket model; its size is Bc.






50. Calculated measurement based on the actual queue depth and the previous average. Designed to allow WRED to adjust slowly to rapid changes of the actual queue depth.