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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. Alternate name for the SPF algorithm - named for its inventor - Edsger W. Dijkstra.






2. The process of taking the IP and TCP headers of a packet - compressing them - and then uncompressing them on the receiving router.






3. Sequence number.






4. Smoothed Round-Trip Time.






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






6. 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.






7. A mapping between each DSCP value and a corresponding CoS value - often used in Cisco LAN switches when performing classification for egress queuing.






8. Weighted fair queuing.






9. A router that should either permanently or temporarily not be used as a transit router. Can wait a certain time after OSPF process start - or after BGP notifies OSPF that BGP has converged - before ceasing to be a stub router.






10. With private VLANs - a secondary VLAN in which the ports can send and receive frames with each other - but not with ports in other secondary VLANS.






11. Excess Burst.






12. A term used in this book to refer to a route that is included in a larger summary route.






13. A Cisco-proprietary feature. After a Cisco multicast router receives IGMP Join or Leave messages from hosts - it communicates to the connected Cisco switches - telling them which hosts (based on their unicast MAC addresses) have joined or left each m






14. 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.






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






16. A term referring to the MQC class-map command and its related subcommands - which are used for classifying packets.






17. Inter-Switch Link.






18. Controls the distribution of multicast traffic by checking the TTL values configured on the interfaces. It forwards the multicast packet only on those interfaces whose configured TTL value is less than or equal to the TTL value of the multicast packe






19. The command used to initialize a SPAN or RSPAN session on a Catalyst switch.






20. A category used by a policer to classify packets relative to the traffic contract. The bit rate implied by all conforming packets is within the traffic contract.






21. Committed information rate.






22. A message sent by a router - after receiving a Leave message from a host - to determine whether there are still any active members of the group. The router uses the group address as the destination address.






23. A BGP path attribute that implies how the route was originally injected into some router's BGP table.






24. Point-to-Point Protocol over Ethernet. A convention often used as the data link protocol over Cable in which Ethernet is used as the data link protocol - but with PPP being encapsulated inside Ethernet. The combination gives the data link features of






25. On a serial cable - the pin lead set by the DCE to tell the DTE that the DTE is allowed send data.






26. A BGP feature that overcomes the requirement of a full mesh of iBGP peers inside a single AS by separating the AS into multiple sub-autonomous systems.






27. A NAT term describing an IP address representing a host that resides outside the enterprise network - with the address being used in packets outside the enterprise network.






28. Cell Loss Priority.






29. Time-division multiplexing.






30. Uses Modular QoS CLI to control the amount and type of traffic handled by the router or switch control plane. Class maps identify traffic types - and then a service policy applied to the device control plane sets actions for each type of traffic.






31. Shaped round-robin.






32. Web Cache Communication Protocol.






33. A possible side effect of a scheduler that performs strict-priority scheduling of a queue - which can result in lower-priority queues getting little or no service.






34. Route Target.






35. An individual line in an ACL.






36. The combination of MPLS labels and links over which a packet will be forwarded over an MPLS network - from the point of ingress to the MPLS network to the point of egress.






37. An NTP client that assumes that a server will send NTP broadcasts - removing the requirement for the client to have the NTP server's IP address preconfigured.






38. The portions of PPP focused on features that are related to specific Layer 3 protocols.






39. Management Information Base.






40. A NAT term describing an IP address representing a host that resides outside the enterprise network - with the address being used in packets inside the enterprise network.






41. Data communications equipment.






42. The All OSPF DR Routers multicast IP address - listened for by DR and BDR routers.






43. The process of changing the electrical characteristics on a transmission medium - based on defined rules - to represent data.






44. A BGP path attribute that lists the next-hop IP address used to reach an NLRI.






45. A queuing scheduler concept - much like CQ's scheduler - in which queues are given some service in sequence. This term is often used with queuing in Cisco LAN switches.






46. The combination of PVST+ and Rapid Spanning Tree. It provides subsecond convergence time and is compatible with PVST+ and MSTP.






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






48. Modified Deficit Round-Robin.






49. An IPv6 migration strategy in which a host or router supports both IPv4 and IPv6 natively.






50. In MQC and CB Policing - a configuration style by which - for one category of packets (conform - exceed - or violate) - more than one marking action is defined for a single category. For example - marking DSCP and DE.







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