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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. Controls access to the Internet in public wireless LANs.






2. A switch feature that examines incoming frames - comparing the source IP and MAC addresses to the DHCP snooping binding database - filtering frames whose addresses are not listed in the database for the incoming interface.






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






4. Priority queue and priority queuing.






5. The process of installing a multicast application; also referred to as launching an application.






6. Link Access Procedure for Frame-Mode Bearer Services.






7. Virtual Router Redundancy Protocol.






8. Network Layer Protocol ID is a field in the RFC 2427 header that is used as a Protocol Type field in order to identify the type of Layer 3 packet encapsulated inside a Frame Relay frame.






9. A characterization of a BGP path attribute in which BGP implementations are not required to support the attribute (optional) - and for which if a router receives a route with such an attribute - the router should remove the attribute before advertisi






10. Link Aggregation Control Protocol.






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






12. Inside telcos' original TDM hierarchy - a unit that combines multiple DS0s into a single channel






13. An OSPF external route for which internal OSPF cost is not added to the cost of the route as it was redistributed into OSPF.






14. A type of spread spectrum that spreads RF signals over the frequency spectrum by representing each data bit by a longer code. 802.11b specifies the use of DSSS.






15. Measured Round-Trip Time.






16. A mechanism that counters collisions caused by hidden nodes. If enabled - the station or access point must first send an RTS frame and receive a CTS frame before sending each data frame.






17. Inter-Switch Link.






18. Digital Signal Level 1.






19. 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.






20. The 802.1X function implemented by a switch - in which the switch translates between EAPoL and RADIUS messages in both directions - and enables/disables ports based on the success/failure of authentication.






21. A BGP router in an AS that uses route reflectors - but that is not aided by any RR server.






22. Layer x PDU.






23. With DiffServ - a DSCP marking and a related set of QoS actions applied to packets that have that marking.






24. A Cisco-proprietary feature by which multiple routers can provide interface IP address redundancy so that hosts using the shared - virtual IP address as their default gateway can still reach the rest of a network even if one or more routers fail.






25. With shaping - the number of bits allowed to be sent every Tc. Also defines the size of the token bucket when Be = 0.






26. A prestandard (at the time of publication) wireless LAN physical layer that offers data rates in the hundreds of megabits per second.






27. Switched virtual circuit.






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






29. Weighted fair queuing.






30. 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.






31. The two computers use a protocol with which to communicate with the same layer on another computer. The protocol defined by each layer uses a header that is transmitted between the computers to communicate what each computer wants to do.






32. A BGP path attribute that allows routers in one AS to set a value and advertise it into a neighboring AS - impacting the decision process in that neighboring AS. A smaller value is considered better. Also called the BGP metric.






33. Aka Rapid Per-VLAN Spanning Tree Plus.






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






35. Loss of Frame.






36. A type of routing protocol convergence event in which the metric for a route increases slightly over time because of the advertisement of an invalid route.






37. With some routing protocols - the time period between successive Hello messages.






38. An 802.1d STP transitory port state in which the port does not send or receive frames - and does not learn MAC addresses - but does wait for STP convergence and for CAM flushing by the switches in the network.






39. The MPLS feature by which an ingress E-LSR copies the IP packet's IP TTL field into the MPLS header's TTL field.






40. With OSPF - the encapsulation of OSPF messages inside IP - to a router with which no common subnet is shared - for the purpose of either mending partitioned areas or providing a connection from some remote area to the backbone area.






41. Source-specific multicast.






42. Enhanced Local Management Interface.






43. The PPP function for fragmenting packets - plus interleaving delay-sensitive later-arriving packets between the fragments of the first packet.






44. On a multiaccess network - when a PIM-DM or PIM-SM router receives a Prune message - it starts a 3-second timer. If it receives a Join message on the multiaccess network from another router before the timer expires - it considers the message as an ov






45. 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.






46. Software-based collection and reporting tool for data reported by NetFlow.






47. A mechanism used by TCP senders to limit the dynamic window for a TCP connection - to reduce the sending rate when packet loss occurs. The sender considers both the advertised window size and CWND - using the smaller of the two.






48. Neighbor Advertisement.






49. On a serial cable - the pin lead set by the DCE to tell the DTE that the DTE is allowed send data.






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






Can you answer 50 questions in 15 minutes?



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