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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. Slow Start Threshold.






2. The RFC-standard MPLS protocol used to advertise the binding (mapping) information about each particular IP prefix and associated label. See also TDP.






3. Exterior Gateway Protocol.






4. Clear To Send.






5. A mechanism for conserving battery power in wireless stations. The access point buffers data frames destined to sleeping stations - which wake periodically to learn from information in the beacon frame whether or not data frames are waiting for trans






6. A Cisco IOS configuration tool for routing protocols by which routing updates may be filtered.






7. 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.






8. A conceptual model used by CB Policing when using an excess burst.






9. Defined in RFC 3748 - the protocol used by IEEE 802.1X for exchanging authentication information.






10. When subnetting a class A - B - or C address - the subnet for which all subnet bits are binary 1.






11. A term referring to EIGRP's internal processing logic.






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






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






14. 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.






15. Policing in which a single rate is metered - and packets are placed into one of two categories (conform or exceed).






16. Differentiated Services.






17. A message sent by a multicast router - by default every 125 seconds - on each of its LAN interfaces to determine whether any host wants to receive multicast traffic for any group.






18. Dynamic Trunking Protocol.






19. A term relating to Cisco LAN switch tail-drop logic - in which multiple tail-drop thresholds may be assigned based on CoS or DSCP - resulting in some frames being discarded more aggressively than others.






20. The OSPF data structure that describes topology information.






21. A field in the IP header that is decremented at each pass through a Layer 3 forwarding device.






22. Excess Burst.






23. A BGP message that includes withdrawn routes - path attributes - and NLRI.






24. An OSPF router that connects to the backbone area and to one or more non-backbone area.






25. A small FIFO queue associated with each router's physical interface - for the purpose of making packets available to the interface hardware - removing the need for a CPU interrupt to start sending the next packet out the interface.






26. Link-state database.






27. The same thing as TCP code bits. See TCP code bits.






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






29. Inside telcos' original TDM hierarchy - a unit that combines multiple DS0s into a single channel






30. Link-state advertisement.






31. In IPv6 DNS - the IPv6 equivalent of an IPv4 DNS A record.






32. An interface on a Cisco IOS-based switch that is treated as if it were an interface on a router.






33. Ethernet feature in which a NIC or Ethernet port can both transmit and receive at the same instant in time. It can be used only when there is no possibility of collisions. Loopback circuitry on NIC cards is disabled to use full duplex.






34. 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.






35. Custom queuing






36. Data Set Ready.






37. Ready To Send.






38. An 802.1d STP port state in which the port does not send or receive frames - except for listening for received Hello BPDUs.






39. Loss of Frame.






40. Protects against problems caused by unidirectional links between two switches. Watches for loss of received Hello BPDUs - in which case it transitions to a loop-inconsistent state instead of transitioning to a forwarding state.






41. Autonomous System Boundary Router. An OSPF router that redistributes routes from some other source into OSPF.






42. A type of routing protocol convergence event in which the metric for a route increases slightly over time because of the advertisement of an invalid route.






43. With RIP - a per-route timer that increases until the router receives a routing update that confirms the route is still valid - upon which the timer is reset to 0. If the updates cease - the Invalid timer will grow - until reaching the timer setting






44. Virtual Routing and Forwarding table.






45. The practice of defining boundaries that determine how far multicast traffic will travel in your network.






46. With routing protocols - the process by which the router receiving a routing update determines if the routing update came from a trusted router.






47. Modular QoS CLI.






48. An interface on a Cisco IOS-based switch that is treated as if it were an interface on a switch.






49. Digital Signal Level 3.






50. An IPv6/IPv4 tunneling method that is designed for transporting IPv6 packets within a site where a native IPv6 infrastructures is not available.