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






2. 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.






3. IP routing The simplest MPLS application - involving the advertisement of an IGP to learn IP routes - and LDP or TDP to advertise labels.






4. A protection against problems caused by unidirectional links between two switches. Uses messaging between switches to detect the loop - err-disabling the port when the link is unidirectional.






5. A TCP variable that defines the largest number of bytes allowed in a TCP segment's Data field. The calculation does not include the TCP header. With a typical IP MTU of 1500 bytes - the resulting default MSS would be 1460. TCP hosts must support an M






6. The process - defined by FRF.5 and FRF.8 - for combining ATM and FR technologies for an individual VC.






7. 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.






8. Enables a wireless client to securely roam between access points in the same subnet or between subnets with access point handoff times within 50 ms.






9. A strategy for subnetting a classful network for which masks/prefixes are different for some subnets of that one classful network.






10. A list of interspersed alphanumeric literals and metacharacters that are used to apply complex matching logic to alphanumeric strings. Often used for matching AS_PATHs in Cisco routers.






11. An OSPF timer that determines how long an LSA can remain in the LSDB without having heard a reflooded copy of the LSA.






12. From a Layer 1 perspective - the process of using special strings of electrical signals over a transmission medium to inform the receiver as to which bits are overhead bits - and which fit into individual subchannels.






13. An IEEE standard that - when used with EAP - provides user authentication before their connected switch port allows the device to fully use the LAN.






14. A reserved value for the BGP COMMUNITY path attribute that implies that the route should not be advertised outside the local confederation sub-AS.






15. When subnetting a class A - B - or C address - the subnet for which all subnet bits are binary 0.






16. Used by a policer to classify packets relative to the traffic contract. These packets are considered to be above the traffic contract in all cases.






17. An EIGRP message that is used to acknowledge reliable EIGRP messages - namely Update - Query - and Reply messages. Acks do not require an Ack.






18. Permanent virtual circuit.






19. WRED compares this setting to the average queue depth to decide whether packets should be discarded. No packets are discarded if the average queue depth falls below this minimum threshold.






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






21. The process of taking routes known through one routing protocol and advertising those routes with another routing protocol.






22. Frame Relay Forum.






23. An intrusion detection system that safeguards the wireless LAN from malicious and unauthorized access.






24. 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.






25. A single label and link that is part of a complete LDP. See also label switched path.






26. A multicast routing protocol that forwards the multicast traffic only when requested by a downstream router.






27. The process of sending an infinite-metric route in routing updates when that route fails.






28. Wi-Fi Protected Access. A security standard that includes both TKIP and AES and was ratified by the Wi-Fi Alliance.






29. 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.






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






31. An individual line in an ACL.






32. A message sent by a host when it wants to leave a group - addressed to the All Multicast Routers address 224.0.0.2.






33. A process whereby a switch - when making a forwarding decision - uses not only Layer 2 logic but other OSI layer equivalents as well.






34. A BGP feature by which a router learns iBGP routes - and then forwards them to other iBGP peers - reducing the required number of iBGP peers while also avoiding routing loops.






35. 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.






36. A standard (RFC 951) protocol by which a LAN-attached host can dynamically broadcast a request for a server to assign it an IP address - along with other configuration settings - including a subnet mask and default gateway IP address.






37. Loss of Frame.






38. A wireless LAN physical layer that operates at up to 54-Mbps data rates using OFDM in the 5-GHz band.






39. Backup designated router.






40. Digital Signal Level 3.






41. An STP timer that dictates how long a switch should wait when it ceases to hear Hellos.






42. Inter-Switch Link.






43. A configuration tool in Cisco IOS that allows basic programming logic to be applied to a set of items. Often used for decisions about what routes to redistribute - and for setting particular characteristics of those routes






44. Committed Burst.






45. Generic routing encapsulation.






46. A T1 alarm state that occurs when the receiver can no longer consistently identify the frame. See LOF.






47. A queuing scheduler's logic by which - if a particular queue has packets in it - those packets always get serviced next.






48. A characteristic of OSPF interfaces that determines whether a DR election is attempted - whether or not neighbors must be statically configured - and the default Hello and Dead timer settings.






49. The original standardized set of generic SNMP MIB variables - defined in RFC 1158.






50. Edge LSR.