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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. 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. A Cisco-proprietary protocol 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.






3. A small FIFO queue associated with each router's physical interface - for the purpose of making packets available to the interface hardware - removing the need for a CPU interrupt to start sending the next packet out the interface.






4. A VC that is set up dynamically when needed. An SVC can be equated to a dial-on-demand connection in concept.






5. Neighbor Discovery Protocol.






6. A NAT term describing an IP address representing a host that resides outside the enterprise network - with the address being used in packets outside the enterprise network.






7. Another term for summary route.






8. Defined in IEEE 802.1AD - defines a messaging protocol used to negotiate the dynamic creation of PortChannels (EtherChannels) and to choose which ports can be placed into an EtherChannel.






9. An Internet standard authentication protocol that uses clear-text passwords and a two-way handshake to perform authentication over a PPP link.






10. 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






11. 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).






12. Layer 2 payload compression.






13. A router that should not be used to forward packets between other routers. Other routers will not send Query messages to a stub router.






14. An MPLS VPN term referring to the more efficient choice of popping the outer label at the second-to-last (penultimate) LSR - which then prevents the egress PE from having to perform two LFIB lookups to forward the packet.






15. An IEEE standard that - when used with EAP - provides user authentication before their connected switch port allows the device to fully use the LAN.






16. A BGP message that includes withdrawn routes - path attributes - and NLRI.






17. A network/subnet over which two or more OSPF routers have become neighbors - thereby being able to forward packets from one router to another across that network.






18. The IPv6 protocol used for the discovery of which hosts are listening for which multicast IP addresses for IPv6.






19. A Layer 3 forwarding path through a router that does not optimize the forwarding path through the router.






20. A subset of a classful IP network - as defined by a subnet mask - which used to address IP hosts on the same Layer 2 network in much the same way as a classful network is used.






21. A 3-bit field in an ISL header used for marking frames. Also - used generically to refer to either the ISL CoS field or the 802.1Q User Priority field.






22. The All OSPF Routers multicast IP address - listened for by all OSPF routers.






23. A Cisco-proprietary LMI protocol - implemented in Cisco WAN switches and routers - through which the switch can inform the router about parameters for each VC - including CIR - Bc - and Be.






24. Also called VLAN trunking - a method (using either the Cisco ISL protocol or the IEEE 802.1Q protocol) to support carrying traffic between switches for multiple VLANs that have members on more than one switch.






25. Maximum Segment Size.






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






27. A commonly used name for Multi-VRF CE.






28. Web Cache Communication Protocol.






29. Data Set Ready.






30. Cisco Express Forwarding.






31. Digital subscriber line - a common Internet service type for residential and business customers.






32. A network/subnet to which only one OSPF router is connected.






33. Common Spanning Tree.






34. A component that interfaces with a phone using IP and provides connections to the Public Switched Telephone Network (PSTN).






35. An EIGRP message that identifies neighbors - exchanges parameters - and is sent periodically as a keepalive function. Hellos do not require an Ack.






36. The most recent standardized set of generic SNMP MIB variables - defined in RFC 1213 and updated in RFCs 2011 through 2013.






37. A WFQ term referring to its drop logic - which is similar to tail-drop behavior.






38. Direct sequence spread spectrum.






39. A mapping between each DSCP value and a WRED threshold - often used in Cisco LAN switches when performing WRED.






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






41. The signal strength of the RF signal at the output of the radio card or access point transmitter - before being fed into the antenna. Measured in milliwatts - watts - or dBm.






42. Enhanced Local Management Interface.






43. A local Cisco-proprietary BGP setting that is not advertised to any peers. A larger value is considered to be better.






44. As defined in RFC 3623 - graceful restart allows for uninterrupted forwarding in the event that an OSPF router's OSPF routing process must restart. The router does this by first notifying the neighbor routers that the restart is about to occur; the n






45. Three core security functions.






46. Custom queuing






47. In OSPF - a number assigned to each LSA - ranging from 0x80000001 and wrapping back around to 0x7FFFFFFF - which is used to determine which LSA is most recent.






48. On a serial cable - the pin lead set by the DCE to imply that the DCE is ready to signal using pin leads






49. Link-state database.






50. 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.