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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. Controls access to the Internet in public wireless LANs.






2. 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.






3. 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.






4. Router Advertisement.






5. A type of AS_PATH segment consisting of an ordered list of ASNs through which the route has been advertised.






6. 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.






7. The SNMP specifications - standardized in RFCs - defining the rules by which SNMP MIB variables should be defined.






8. A term used with WFQ for the number assigned to a packet as it is enqueued into a WFQ queue. WFQ schedules the currently lowest FT packet next.






9. An OSPF external route for which internal OSPF cost is not added to the cost of the route as it was redistributed into OSPF.






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






11. An FRF standard for LFI for VoFR (FRF.11) VCs - in which all voice frames are interleaved in front of data frames' fragments.






12. A mechanism that counters collisions caused by hidden nodes. If enabled - the station or access point must first send an RTS frame and receive a CTS frame before sending each data frame.






13. In IPv6 - a Router Advertisement message used by an IPv6 router to send information about itself to nodes and other routers connected to that router.






14. Class-Based Marking.






15. An IPv6 address format used for publicly registered IPv6 addresses.






16. The encapsulation of EAP messages directly inside LAN frames. This encapsulation is used between the supplicant and the authenticator.






17. A set of rules by which BGP examines the details of multiple BGP routes for the same NLRI and chooses the single best BGP route to install in the local BGP table.






18. An 802.1d STP port state in which the port sends and receives frames.






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






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






21. IP Control Protocol.






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






23. An IP variable that defines the largest size allowed in an IP packet - including the IP header. IP hosts must support an MTU of at least 576 bytes.






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






25. A BGP term referring to an IP prefix and prefix length.






26. A convention for IP addresses in which class A - B - and C default network prefixes (of 8 - 16 - and 24 bits - respectively) are ignored.






27. For some encoding schemes - consecutive signals must use opposite polarity in an effort to reduce DC current. A BPV occurs when consecutive signals are of the same polarity.






28. A packet-scheduling algorithm used in Cisco switches that provides similar behavior to CBWFQ in shared mode and polices in shaped mode.






29. A neighbor state that signifies the other router has reached neighbor status - having passed the parameter check. The FIB entry details the information needed for forwarding: the next-hop router and the outgoing interface - in an optimized mtrie stru






30. Direct sequence spread spectrum.






31. A BGP process by which a router reapplies routing policy configuration (route maps - filters - and the like) based on stored copies of sent and received BGP Updates.






32. Switched virtual circuit.






33. The feature in a Cisco IOS device by which a terminal session's previously typed commands are remembered - allowing the user to recall the old commands to the command line through a simple key sequence (for example - the up-arrow key).






34. Sending a message from a single source or multiple sources to selected multiple destinations across a Layer 3 network in one data stream.






35. An optimized Layer 3 forwarding path through a router or switch. CEF optimizes routing table lookup by creating a special - easily searched tree structure based on the contents of the IP routing table. The forwarding information is called the Forward






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






37. Orthogonal frequency division multiplexing.






38. 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.






39. A NAT term describing the process of multiplexing TCP and UDP flows - based on port numbers - to a small number of public IP addresses. Also called NAT overloading.






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






41. The portion of PPP focused on negotiating IP features






42. Protocol data unit.






43. A Cisco IOS queuing tool most notable for its automatic classification of packets into separate per-flow queues.






44. The one VLAN on an 802.1Q trunk for which the endpoints do not add the 4-byte 802.1Q tag when transmitting frames in that VLAN.






45. The range 233.0.0.0 through 233.255.255.255 that IANA has reserved (RFC 2770) on an experimental basis. It can be used by anyone who owns a registered autonomous system number to create 256 global multicast addresses.






46. An SPF calculation as a result of changes inside the same area as a router - for which the SPF run must examine the full LSDB.






47. With RIP - a per-route timer (default 180 seconds) that begins when a route's metric changes to a larger value.






48. A set of packets in an MPLS network for which the MPLS network will apply the exact same forwarding behavior.






49. Exterior Gateway Protocol.






50. 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.