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CCIE Vocab

Instructions:
  • Answer 50 questions in 15 minutes.
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  • Match each statement with the correct term.
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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. Access Control Server. A term referring generically to a server that performs many AAA functions. It also refers to the software product Cisco Secure Access Control Server.






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






3. A set of DiffServ PHBs that defines 12 DSCP values - with four queuing classes and three drop probabilities within each queuing class.






4. A Frame Relay address used in Frame Relay headers to identify the VC






5. Weighted fair queuing.






6. Message sent by a PIM-DM router to its upstream router asking to quickly restart forwarding the group traffic; sent using the unicast address of the upstream router.






7. A WRED process by which WRED discards all newly arriving packets intended for a queue - based on whether the queue's maximum threshold has been exceeded.






8. Jargon used to refer to the first of two buckets in the dual token bucket model; its size is Bc.






9. An FRF standard for payload compression.






10. In SNMP - the process of a manager using successive GetNext and GetBulk commands to discover the exact MIB structure supported by an SNMP agent. The process involves the manager asking for each successive MIB leaf variable.






11. Virtual LAN.






12. Controls the distribution of multicast traffic by checking the TTL values configured on the interfaces. It forwards the multicast packet only on those interfaces whose configured TTL value is less than or equal to the TTL value of the multicast packe






13. An optional transitive BGP path attribute used to store 32-bit decimal values. Used for flexible grouping of routes by assigning the group the same COMMUNITY value. Other routers can apply routing policies based on the COMMUNITY value. Used in a larg






14. Defines a particular wireless LAN. The SSID configured in the radio card must match the SSID in the access point before the station can connect with the access point.






15. A characterization of a BGP path attribute in which all BGP implementations must support and understand the attribute (well known) - and all BGP Updates must include the attribute (mandatory).






16. Method by which a dense-mode routing protocol distributes multicast traffic from a source to all the segments of a network. Also called shortest-path tree (SPT) - because it uses the shortest routing path from the source to the segments of the networ






17. Class-Based Weighted Fair Queuing.






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






19. Burst With shaping and policing - the number of additional bits that may be sent after a period of relative inactivity.






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






21. Extensible Authentication Protocol.






22. An 802.11 frame that access points or stations in ad hoc networks send periodically so that wireless stations can discover the presence of a wireless LAN and coordinate use of certain protocols - such as power-save mode.






23. Another term for Port Address Translation. See PAT.






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






25. A serial-line encoding standard that substitutes Bipolar Violations in a string of eight binary 0s to provide enough signal transitions to maintain synchronization.






26. The multicast addresses assigned by IANA.






27. Aka receiver's advertised window.






28. Backup designated router.






29. A BGP peer connection between two routers inside the same ASN - but in different confederation sub-autonomous systems.






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






31. Digital Signal Level 1.






32. The range 239.0.0.0 through 239.255.255.255 that IANA has assigned for use in private multicast domains.






33. Digital Signal Level 0.






34. An exterior routing protocol that predates BGP. It is no longer used today.






35. A Cisco router feature in which the router works to prevent SYN attacks either by monitoring TCP connections flowing through the router - or by actively terminating TCP connection until the TCP connection is established and then knitting the client-s






36. Backward Explicit Congestion Notification.






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






38. A route that is created to represent one or more smaller component routes - typically in an effort to reduce the size of routing and topology tables.






39. Network Time Protocol.






40. A predefined VC. A PVC can be equated to a leased line in concept.






41. Tag Distribution Protocol.






42. Modular QoS CLI.






43. Controls access to the Internet in public wireless LANs.






44. Cisco-proprietary STP feature in which an access layer switch is configured to be unlikely to become Root or to become a transit switch. Also - convergence upon the loss of the switch's Root Port takes place in a few seconds.






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






46. An E-LSR in an MPLS VPN network whose role in a particular discussion is to receive labeled packets from other LSRs and then forward the packets as unlabeled packets to CE routers.






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






48. WRED compares this setting to the average queue depth to decide whether packets should be discarded. All packets are discarded if the average queue depth rises above this maximum threshold.






49. The second byte of the IP header - formerly known as the ToS byte and redefined by DiffServ.






50. A Cisco IOS feature that performs deep packet inspection to classify packets based on application layer information.







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