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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 packet-scheduling algorithm used in Cisco switches that provides similar behavior to CBWFQ in shared mode and polices in shaped mode.






2. An STP timer that dictates how long a switch should wait when it ceases to hear Hellos.






3. A conceptual model used by shapers and policers to represent their internal logic.






4. Type of Service byte.






5. The characterization of how far EIGRP Query messages flow away from the router that first notices a failed route and goes active for a particular subnet.






6. Receivers subscribe to an (S -G) channel when they request to join a multicast group. That is - they specify the unicast IP address of their multicast source and the group multicast address. SSM is typically used in very large multicast deployments s






7. Route Target.






8. EAP over LAN.






9. Spanning Tree Protocol.






10. UniDirectional Link Detection.






11. Message Digest 5.






12. The number of beacons that governs how often multicast frames are sent over a wireless LAN.






13. A type of OSPF NSSA 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 can be injected into a totally NSSA area.






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






15. A T1 alarm state that occurs when a device has detected a local LOF/LOS/AIS condition. The device in Red alarm state then sends a Yellow alarm signal.






16. A type of OSPF packet used to discover neighbors - check for parameter agreement - and monitor the health of another router.






17. A bit inside the Frame Relay header that - when set - implies that congestion occurred in the direction opposite (or backward) as compared with the direction of the frame.






18. Variable-length subnet masking.






19. A calculated TCP variable - used along with the TCP CWND variable - to dictate a TCP sender's behavior when it recognizes packet loss. As CWND grows after packet loss - the TCP sender increases CWND based on Slow Start rules - until CWND grows to be






20. 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.






21. An exterior routing protocol that predates BGP. It is no longer used today.






22. Aka minimum CIR.






23. A strategy for subnetting a classful network for which masks/prefixes are different for some subnets of that one classful network.






24. Port Address Translation.






25. An MPLS LSR that can forward and receive both labeled and unlabeled packets.






26. A Cisco-proprietary feature by which multiple routers can provide interface IP address redundancy - as well as cause a set of clients to load-balance their traffic across multiple routers inside the GLBP group.






27. A 3-bit field in an MPLS header used for marking frames.






28. Defined in RFC 3748 - the protocol used by IEEE 802.1X for exchanging authentication information.






29. Data Terminal Ready.






30. Point-to-Point Protocol.






31. Rendezvous point.






32. An optional transitive BGP path attribute used to store 32-bit decimal values. Used for flexible grouping of routes by assigning the group the same COMMUNITY value. Other routers can apply routing policies based on the COMMUNITY value. Used in a larg






33. An attack by which the attacker initiates many TCP connections to a server - but does not complete the TCP connections - by simply not sending the third segment normally used to establish the connection. The server may consume resources and reject ne






34. Burst With shaping and policing - the number of additional bits that may be sent after a period of relative inactivity.






35. 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.






36. 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.






37. The portion of PPP focused on negotiating IP features






38. Defines a particular behavior for FTP regarding the establishment of data TCP connections. In active mode - the FTP client uses the FTP PORT command - over the FTP control connection - to tell the FTP server the port on which the client should be lis






39. Generic routing encapsulation.






40. A Cisco-proprietary protocol used to dynamically negotiate whether the devices on an Ethernet segment want to form a trunk and - if so - which type (ISL or 802.1Q).






41. With RIP - the advertisement of a poisoned route out an interface - when that route was formerly not advertised out that interface due to split horizon rules.






42. An ITU standard Frame Relay header - including the DLCI - DE - FECN - and BECN bits in the LAPF header - and a frame check in the LAPF trailer.






43. 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






44. A routing protocol feature by which the routing update includes the entire set of routes - even if some or all of the routes are unchanged.






45. The combination of PVST+ and Rapid Spanning Tree. It provides subsecond convergence time and is compatible with PVST+ and MSTP.






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






47. Permanent virtual circuit.






48. Class-Based Marking.






49. Edge LSR.






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







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