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






2. Bootstrap Router.






3. In MPLS VPNs - a 64-bit Extended Community path attribute attached to a BGP route for the purpose of controlling into which VRFs the route is added.






4. A 3-bit field in an MPLS header used for marking frames.






5. 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.






6. 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






7. Dynamic ARP Inspection.






8. A characterization of a BGP path attribute in which BGP implementations are not required to support the attribute (optional) - and for which if a router receives a route with such an attribute - the router should remove the attribute before advertisi






9. Modular QoS CLI.






10. A BGP router in an AS that uses route reflectors - but that is not aided by any RR server.






11. In the context of SNMP - the Response command is sent by an SNMP agent - back to a manager - in response to any of the three types of Get requests - or in response to a Set request. It is also used by a manager in response to a received Inform comman






12. A tunneling protocol that can be used to encapsulate many different protocol types - including IPv4 - IPv6 - IPsec - and others - to transport them across a network.






13. An architecture and set of documents that defines Cisco's best recommendations for how to secure a network.






14. With EIGRP - a purposefully slowly changing measurement of round-trip time between neighbors - from which the EIGRP RTO is calculated.






15. Maximum Response Time.






16. 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.






17. A term referring to the MQC service-policy command - which is used to enable a policy map on an interface.






18. The number of beacons that governs how often multicast frames are sent over a wireless LAN.






19. An FRF standard for LFI for data (FRF.3) VCs.






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






21. A term used with Cisco LAN switches - referring to a DSCP value used when making QoS decisions about a frame. This value may not be the actual DSCP value in the IP header encapsulated inside the frame.






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






23. A numeric value between 0 and 32 (inclusive) that defines the number of beginning bits in an IP address for which all IP addresses in the same group have the same value. Alternative: The number of binary 1s beginning a subnet mask - written as a deci






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






25. The process of breaking a frame into pieces - sending some of the fragments - and then sending all or part of a different packet - all of which is done to reduce the delay of the second packet.






26. A Cisco IOS queuing tool that uses MQC configuration commands - reserves a minimum bandwidth for some queues - provides high-priority scheduling for some queues - and polices those queues to prevent starvation of lower-priority queues during interfac






27. Regeneration of the Layer 2 encapsulation removed from frames forwarded in a SPAN session.






28. The first 48 bits of an IPv6 global address - used for efficient route aggregation.






29. An MPLS VPN term referring to a router at a customer site that does not implement MPLS.






30. An IOS feature in which multiple routing tables and routing forwarding instances exist in a single router - with interfaces being assigned to one of the several VRFs. This feature allows separating of routing domains inside a single router platform.






31. An early standard from AT&T for encoding analog voice as a digital signal for transmission over a TDM network. PCM requires 64 kbps - and is the basis for the DS0 speed.






32. Similar to an appliance firewall - in that interfaces are placed into security zones. Traffic is allowed between interfaces in the same zone. You can apply policies to filter and control traffic between zones.






33. CDP Control Protocol.






34. A router that is not an ABR or ASBR in that all of its interfaces connect to only a single OSPF area.






35. With RIP - the regular interval at which updates are sent. Each interface uses an independent timer - defaulting to 30 seconds.






36. In the context of SNMP - the GetBulk command is sent by an SNMP manager - to an agent - requesting the values of multiple variables. The GetBulk command allows retrieval of complex structures - like a routing table - with a single command - as well a






37. The mandatory contention-based 802.11 access protocol that is also referred to as CSMA/CA.






38. 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.






39. Multilink PPP.






40. An exterior routing protocol designed to exchange prefix information between different autonomous systems. The information includes a rich set of characteristics called path attributes - which in turn allows for great flexibility regarding routing ch






41. An enhanced version of T1 framing - as compared with the earlier Superframe (D4) standard.






42. Measured Round-Trip Time.






43. Diffusing Update Algorithm.






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






45. The Frame Relay protocol used between a DCE and DTE to manage the connection. Signaling messages for SVCs - PVC Status messages - and keepalives are all LMI messages.






46. 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






47. 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.






48. Network Address Translation-Protocol Translation.






49. An ITU standard Frame Relay header - including the DLCI - DE - FECN - and BECN bits in the LAPF header - and a frame check in the LAPF trailer.






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