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






2. The process of breaking a frame into pieces - sending some of the fragments - and then sending all or part of a different packet - all of which is done to reduce the delay of the second packet.






3. The process of taking a PDU from some other source and placing a header in front of the original PDU - and possibly a trailer behind it.






4. Jargon referring to the minimum value to which adaptive shaping will lower the shaping rate.






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






6. A type of OSPF packet - used to communicate LSAs to another router.






7. Sent by a PIM router to its upstream router to either request that the upstream router forward the group traffic or stop forwarding the group traffic that is currently being forwarded. If a PIM router wants to start receiving the group traffic - it l






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






9. A basic form of traffic shaping that is applied to an interface or subinterface. By default - it shapes all traffic leaving the interface - but can be modified by using an access control list. The access list controls only what traffic is shaped; GTS






10. 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






11. The process of forwarding packets through a router. Also call IP routing.






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






13. A vendor consortium that formerly worked to further Frame Relay common vendor standards.






14. A 3-bit field in an 802.1Q header used for marking frames.






15. With routing protocols - the measurement of favorability that determines which entry will be installed in a routing table if more than one router is advertising that exact network and mask.






16. In MPLS - a term used to define a label that an LSR allocates and then advertises to neighboring routers. The label is considered "local" on the router that allocates and advertises the label.






17. Receiver's advertised window.






18. 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).






19. 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.






20. Virtual circuit.






21. 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.






22. Data communications equipment.






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






24. An Internet standard serial data-link protocol - used on synchronous and asynchronous links - that provides data-link framing - link negotiation - Layer 3 interface features - and other functions.






25. 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.






26. Used by WRED to calculate the rate at which the average queue depth changes as compared with the current queue depth. The larger the number - the slower the change in the average queue depth.






27. A method of collecting traffic received on a switch port or a VLAN and sending it to specific destination ports on the same switch.






28. Frequency hopping spread spectrum.






29. External BGP.






30. 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






31. A configuration tool in Cisco IOS that allows basic programming logic to be applied to a set of items. Often used for decisions about what routes to redistribute - and for setting particular characteristics of those routes






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






33. Diffusing Update Algorithm.






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






35. A process whereby a switch - when making a forwarding decision - uses not only Layer 2 logic but other OSI layer equivalents as well.






36. Modified Deficit Round-Robin.






37. Digital Signal Level 3.






38. A term used in this book to refer to a route that is included in a larger summary route.






39. High Density Binary 3.






40. A number between 1 and 64 -511 (public) and 64 -512 and 65 -535 (private) assigned to an AS for the purpose of identifying a specific BGP domain.






41. A method for how a TCP sender grows its calculated CWND variable - thereby growing the allowed window for the connection. Slow Start grows CWND at an exponential rate.






42. From one perspective - DTE devices are one of two devices on either end of a communications circuit - specifically the device with less control over the communications. In Frame Relay - routers connected to a Frame Relay access link are DTE devices.






43. 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.






44. A type of OSPF stub area for which neither external (type 5) LSAs are introduced - nor type 3 summary LSAs; instead - the ABRs originate and inject default routes into the area. External routes cannot be injected into a totally stubby area.






45. The portions of PPP focused on features that are related to specific Layer 3 protocols.






46. The actual number of packets in a queue at a particular time.






47. Regeneration of the Layer 2 encapsulation removed from frames forwarded in a SPAN session.






48. An FRF standard for LFI for data (FRF.3) VCs.






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






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