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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. 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.






2. Custom queuing






3. In IPv6 - the Neighbor Discovery message used by an IPv6 node to send information about itself to its neighbors.






4. In the PIM-SM design - the process by which a PIM-SM router can build the SPT between itself and the source of a multicast group and take advantage of the most efficient path available from the source to the router as long as it has one directly conn






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






6. An NTP mode in which an NTP host does not adjust its clock - but in which it sends NTP messages to clients so that the clients can update their clocks based on the server's clock.






7. An IP variable that defines the largest size allowed in an IP packet - including the IP header. IP hosts must support an MTU of at least 576 bytes.






8. The rate at which a shaper limits the bits exiting the shaper.






9. A bit in the ATM cell header that - when set to 1 - means that if a device needs to discard frames - it should discard the frames with DE 1 first.






10. Each 802.11 station passively monitors each RF channel for a specific amount of time and listens for beacons. Stations use the signal strengths of found beacons to determine the access point or ad hoc network with which to attempt association.






11. Data Terminal Ready.






12. A type of OSPF packet used to acknowledge LSU packets.






13. 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.






14. Virtual circuit.






15. The RMON function of sending a notification to an RMON collector or the console. Triggered by an RMON event.






16. A set of QoS RFCs that redefines the IP header's ToS byte - and suggests specific settings of the DSCP field and the implied QoS actions based on those settings.






17. The first 48 bits of an IPv6 global address - used for efficient route aggregation.






18. Customer edge.






19. IP Control Protocol.






20. 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.






21. A BGP term referring to an IP prefix and prefix length.






22. An EIGRP message that informs neighbors about routing information. Update messages require an Ack.






23. A Cisco-proprietary messaging protocol used to negotiate the dynamic creation of PortChannels (EtherChannels) and to choose which ports can be placed into an EtherChannel.






24. The All OSPF DR Routers multicast IP address - listened for by DR and BDR routers.






25. 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






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






27. In the context of SNMP - the Set command is sent by an SNMP manager - to an agent - requesting that the agent set a single identified variable to the stated value. The main purpose is to allow remote configuration and remote operation - such as shutt






28. 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.






29. Enhances RP redundancy by providing a method for RPs to exchange multicast source information - even between multicast domains.






30. A WRED process by which WRED does not discard packets during times in which a queue's minimum threshold has not been passed.






31. Modular QoS CLI.






32. 64 bits at the end of an IPv6 global address - used to uniquely identify each host in a subnet.






33. Weighted round-robin.






34. An Internet standard authentication protocol that uses secure hashes and a three-way handshake to perform authentication over a PPP link.






35. Alarm Indication Signal. With T1s - the practice of sending all binary 1s on the line in reaction to problems - to provide signal transitions and allow recovery of synchronization and framing.






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






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






38. The range 233.0.0.0 through 233.255.255.255 that IANA has reserved (RFC 2770) on an experimental basis. It can be used by anyone who owns a registered autonomous system number to create 256 global multicast addresses.






39. The feature in a Cisco IOS device by which a terminal session's previously typed commands are remembered - allowing the user to recall the old commands to the command line through a simple key sequence (for example - the up-arrow key).






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






41. Network Address Translation-Protocol Translation.






42. Edge LSR.






43. The process by which neighboring OSPF routers examine their Hello messages and elect the DR. The decision is based on priority (highest) - or RID (highest) if priority is a tie.






44. A message sent by the multicast router - by default every 60 seconds - on each of its LAN interfaces to determine whether any host wants to receive multicast traffic for any group.






45. Neighbor Solicitation.






46. In MQC and CB Policing - a configuration style by which - for one category of packets (conform - exceed - or violate) - more than one marking action is defined for a single category. For example - marking DSCP and DE.






47. An early standard from AT&T for encoding analog voice as a digital signal for transmission over a TDM network. PCM requires 64 kbps - and is the basis for the DS0 speed.






48. A set of four hex digits listed in an IPv6 address. Each quartet is separated by a colon.






49. An 802.1d STP transitory port state in which the port does not send or receive frames - but does learn the source MAC addresses from incoming frames.






50. Aka receiver's advertised window.