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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. Link Access Procedure for Frame-Mode Bearer Services.






2. Operates in dense mode and depends on its own unicast routing protocol that is similar to RIP to perform its multicast functions.






3. In IP routing - a term referring to the building of IP routing tables by IP routing protocols.






4. Provider edge.






5. 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.






6. Dynamic ARP Inspection.






7. Router ID.






8. Smoothed Round-Trip Time.






9. 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.






10. 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.






11. Diffusing Update Algorithm.






12. Boot Protocol. 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.






13. An 802.1d STP port state in which the port has been administratively disabled.






14. A state variable kept by a router for each known neighbor or potential neighbor.






15. The operating mode of shaped round-robin that provides a low-latency queue with policing.






16. The second most significant bit in the most significant byte of an Ethernet MAC address - a value of binary 0 implies that the address is a Universally Administered Address (UAA) (also known as Burned-In Address [BIA]) - and a value of binary 1 impli






17. A 64-bit extension to the BGP NLRI field - used by MPLS for the purpose of making MPLS VPN customer routes unique in spite of the possibility of overlapping IPv4 address spaces in different customer networks.






18. Type of Service byte.






19. A Cisco IOS configuration tool that can be used to match routing updates based on a base network address - a prefix - and a range of possible masks used inside the values defined by the base network address and prefix.






20. UniDirectional Link Detection.






21. One-time password.






22. 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.






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






24. External BGP.






25. Ready To Send.






26. CDP Control Protocol.






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






28. In MPLS - the mapping of an IP prefix and a label - which is then advertised to neighbors using LDP.






29. A set of all devices for which any frame sent by one of the devices would collide with any frames transmitted at the same time by any of the other devices in the set.






30. A logical group of content engines running WCCP between them. The lead content engine determines the traffic distribution within the cluster - for optimum performance and scalability.






31. An optional transitive BGP path attribute that - for a summary route - lists the BGP RID and ASN of the router that created the summary.






32. A calculation of the length of the AS_PATH PA - which includes 1 for each number in the AS_SEQ - 1 for an entire AS_SET segment - and possibly other considerations.






33. A type of OSPF packet used to exchange and acknowledge LSA headers. Sometimes called DBD.






34. A strategy for subnetting a classful network for which all masks/prefixes are the same value for all subnets of that one classful network.






35. Class of Service.






36. A group of devices on one or more LANs that are configured (using management software) so that they can communicate as if they were attached to the same wire - when - in fact - they are located on a number of different LAN segments. Because VLANs are






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






38. PIM-DM is a method of routing multicast packets that depends on a flood-and-prune approach. PIM Dense Mode gets its name from the assumption that there are many receivers of a particular multicast group - close together (from a network perspective).






39. In the PIM-SM design - the central distribution point to which the multicast traffic is first delivered from the source designated router.






40. 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






41. In the context of SNMP - the GetNext command is sent by an SNMP manager - to an agent - requesting the value of a single MIB variable. The GetNext request identifies a variable for which the manager wants the variable name and value of the next MIB l






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






43. Cisco Wireless LAN Solution Engine.






44. Any occurrence that could change a router's EIGRP topology table - including a received Update or Query - a failed interface - or the loss of a neighbor.






45. A queuing tool's logic by which it selects the next packet to dequeue from its many queues.






46. When subnetting a class A - B - or C address - the subnet for which all subnet bits are binary 1.






47. A protocol - defined in RFC 2865 - that defines how to perform authentication between an authenticator (for example - a router) and an authentication server that holds a list of usernames and passwords.






48. A neighbor state that signifies the other router has reached neighbor status - having passed the parameter check.






49. Ethernet MAC address that represents a single NIC or interface.






50. Ethernet feature in which a NIC or Ethernet port can both transmit and receive at the same instant in time. It can be used only when there is no possibility of collisions. Loopback circuitry on NIC cards is disabled to use full duplex.







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