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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. Reduces the bandwidth necessary for radio management information - such as access point status messages - that is sent across the network by eliminating redundant management information.






2. Customer edge.






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






4. On a serial cable - the pin lead set by the DTE to tell the DCE that the DTE wants to send data.






5. 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.






6. Secure Shell protocol used for character-oriented command-line access and configuration. A highly secure alternative to Telnet.






7. VTP process that prevents the flow of broadcasts and unknown unicast Ethernet frames in a VLAN from being sent to switches that have no ports in that VLAN.






8. A Cisco 12000 series router feature that combines the key features of LLQ and CQ to provide similar congestion-management features.






9. A Frame Relay traffic shaping feature during which the shaping rate is reduced when the shaper notices congestion through the receipt of BECN or ForeSight messages.






10. Digital Signal Level 3.






11. A Cisco IOS configuration tool - using the ip as-path access-list command - that defines a list of statements that match the AS_PATH BGP path attribute using regular expressions.






12. An NTP mode in which two or more NTP servers mutually synchronize their clocks.






13. AutoQoS is a macro that creates and applies quality of service configurations based on Cisco best-practice recommendations.






14. Message Digest 5.






15. A Cisco IOS configuration tool for RIP and EIGRP for which the list matches routes in routing updates - and adds a defined value to the sent or received metric for the routes. The value added to the metric is the offset.






16. This term has two BGP-related definitions. First - it is the normal process in which a router - before sending an Update to an eBGP peer - adds its local ASN to the beginning of the AS_PATH path attribute. Second - it is the routing policy of purpose






17. A message that each host sends - either in response to a router Query message or on its own - to all multicast groups for which it would like to receive multicast traffic.






18. With EIGRP - the route to each destination for which the metric is the lowest of all known routes to that network.






19. Link-State Update.






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






21. A term referring to the process of applying the Message Digest 5 (MD5) algorithm to a string - resulting in another value. The original string cannot be easily computed even when the hash is known - making this process a strong method for storing pas






22. Provider edge.






23. A logical concept that represents the path over which frames travel between DTEs. VCs are particularly useful when comparing Frame Relay to leased physical circuits.






24. A field within a route entry in a routing update - used to associate a generic number with the route. It is used when passing routes between routing protocols - allowing an intermediate routing protocol to pass information about a route that is not n






25. The IP address to which Label Distribution Protocol (LDP) sends LDP Hellos. Also used in IP multicast to send packets to all multicast routers.






26. 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.






27. A type of spread spectrum that spreads RF signals over the frequency spectrum by representing each data bit by a longer code. 802.11b specifies the use of DSSS.






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






29. A type of OSPF stub area that - unlike stub areas - can inject external routes into the NSSA area.






30. 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.






31. A Cisco-proprietary feature by which multiple routers can provide interface IP address redundancy - as well as cause a set of clients to load-balance their traffic across multiple routers inside the GLBP group.






32. Each 802.11 station periodically sends a probe request frame on each RF channel and monitors probe response frames that all access points within range send back. Stations use the signal strength of the probe response frames to determine which access






33. Extensible Authentication Protocol.






34. A name used for DS3 lines inside the European TDM hierarchy.






35. 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






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






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






38. A standard (RFC 2131) protocol by which a host can dynamically broadcast a request for a server to assign to it an IP address - along with other configuration settings - including a subnet mask and default gateway IP address. DHCP provides a great de






39. A term referring generically to a server that performs many AAA functions. It also refers to the software product Cisco Secure Access Control Server.






40. Peak information rate.






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






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






43. An FRF standard for payload compression.






44. Defined in RFCs 1517-1520 - a scheme to help reduce Internet routing table sizes by administratively allocating large blocks of consecutive classful IP network numbers to ISPs for use in different global geographies. CIDR results in large blocks of n






45. Modified Deficit Round-Robin.






46. Cisco-proprietary STP feature in which a switch port monitors for incoming superior Hellos - and reacts to a superior Hello to prevent any switch connected to that port from becoming root.






47. Link Control Protocol.






48. The protocol used in IPv6 for many functions - including address autoconfiguration - duplicate address detection - router - neighbor - and prefix discovery - neighbor address resolution - and parameter discovery.






49. Any OSPF neighbor for which the database flooding process has completed.






50. Network Layer Protocol ID is a field in the RFC 2427 header that is used as a Protocol Type field in order to identify the type of Layer 3 packet encapsulated inside a Frame Relay frame.