Test your basic knowledge |

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. An early T1 framing standard.






2. Multicast Open Shortest Path First.






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






4. An 802.1d STP port state in which the port does not send or receive frames - except for listening for received Hello BPDUs.






5. In the context of SNMP - the Inform command is sent by an SNMP manager to communicate a set of variables - and their values - to another SNMP manager. The main purpose is to allow multiple managers to exchange MIB information - and work together - wi






6. 64 bits at the end of an IPv6 global address - used to uniquely identify each host in a subnet.






7. Defined in RFC 826 - a protocol used on LANs so that an IP host can discover the MAC address of another device that is using a particular IP address.






8. 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.






9. Carrier sense multiple access with collision detection. A media-access mechanism where devices ready to transmit data first check the channel for a carrier. If no carrier is sensed for a specific period of time - a device can transmit. If two devices






10. Alternate name for the SPF algorithm - named for its inventor - Edsger W. Dijkstra.






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






12. A category used by a policer to classify packets relative to the traffic contract. With two-color policers - these packets are considered to be above the contract; for three-color - these packets are above the Bc setting - but within the Be setting.






13. A type of AS_PATH segment consisting of an unordered list of ASNs consolidated from component subnets of a summary BGP route.






14. Inter-Switch Link.






15. Designated router.






16. For some encoding schemes - consecutive signals must use opposite polarity in an effort to reduce DC current. A BPV occurs when consecutive signals are of the same polarity.






17. 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.






18. An NTP mode in which an NTP host adjusts its clock in relation to an NTP server's clock.






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






20. A problem that occurs when an AS does not run BGP on all routers - with synchronization disabled. The routers running BGP may believe they have working routes to reach a prefix - and forward packets to internal routers that do not run BGP and do not






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






22. Virtual LAN.






23. Often used synonymously with neighbor - but with emphasis on the fact that all required parameters match - allowing routing updates to be exchanged between the routers.






24. A NAT term describing the process of multiplexing TCP and UDP flows - based on port numbers - to a small number of public IP addresses. Also called NAT overloading.






25. Cisco-proprietary STP feature in which a switch port monitors for STP BPDUs of any kind - err-disabling the port upon receipt of any BPDU.






26. 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.






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






28. Challenge Handshake Authentication Protocol.






29. Exterior Gateway Protocol.






30. Customer edge.






31. A term referring to how a router views a BGP peer relationship - in which the peer is in another AS.






32. A router feature used when a router sees an ARP request searching for an IP host's MAC - when the router believes the IP host could not be on that LAN because the host is in another subnet. If the router has a route to reach the subnet where the ARP-






33. A process on a computing device that accepts SNMP requests - responds with SNMP-structured MIB data - and initiates unsolicited Trap messages back to an SNMP management station.






34. Enables a wireless client to securely roam between access points in the same subnet or between subnets with access point handoff times within 50 ms.






35. Version 4 of the IP protocol - which is the generally deployed version worldwide (at publication) - and uses 32-bit IP addresses.






36. The process of running the SPF algorithm against the LSDB - with the result being the determination of the current best route(s) to each subnet.






37. A BGP feature that defines the IP TTL field value in packets sent between two eBGP peers. This feature is required when using IP addresses other than the interface IP address on the link between peers.






38. Three core security functions.






39. 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.






40. Virtual Router Redundancy Protocol.






41. A contiguous group of data links that share the same OSPF area number.






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






43. Bipolar 8 Zero Substitution. A serial-line encoding standard that substitutes Bipolar Violations in a string of eight binary 0s to provide enough signal transitions to maintain synchronization.






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






45. An event in which a new packet arrives - needing to be placed into a queue - and the queue is full






46. An MPLS term referring to the MPLS label just before the IP header. Also called the VPN label when implementing MPLS VPNs.






47. 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.






48. A T1 alarm state that occurs when the receiver can no longer consistently identify the frame.






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






50. Permanent virtual circuit.