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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 technology that sends a high-speed data stream over multiple subcarriers simultaneously. It is highly immune to multipath interference. 802.11a and 802.11g specify the use of OFDM.






2. The router in a VRRP group that is currently actively forwarding IP packets. Conceptually the same as an HSRP Active router.






3. Smoothed Round-Trip Time.






4. Switched virtual circuit.






5. With EIGRP - a route that is not a successor route - but that meets the feasibility condition; can be used when the successor route fails - without causing loops.






6. An FRF standard for Frame Relay-to-ATM Service Interworking in which both DTEs use Frame Relay - with ATM in between.






7. A Cisco router feature in which the router works to prevent SYN attacks either by monitoring TCP connections flowing through the router - or by actively terminating TCP connection until the TCP connection is established and then knitting the client-s






8. A WRED process by which WRED discards all newly arriving packets intended for a queue - based on whether the queue's maximum threshold has been exceeded.






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






10. Loss of Frame.






11. The ASN assigned to a confederation sub-AS.






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






13. Version 6 of the IP protocol - which uses 128-bit IP addresses.






14. UniDirectional Link Detection.






15. A process used in routers that are encrypting traffic to permit egress QoS actions to be taken on traffic that is being encrypted on that router. QoS pre-classification keeps a copy of each packet to be encrypted in memory long enough to take the app






16. A type of AS_PATH segment consisting of an ordered list of ASNs through which the route has been advertised.






17. Generic routing encapsulation.






18. A Cisco-proprietary messaging protocol implemented in WAN switches that can be used to signal network status - including congestion - independent of end-user frames and cells.






19. 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.






20. In IPv6 - an address used in the Neighbor Discovery (ND) process. The format for these addresses is FF02::1:FF00:0000/104 - and each IPv6 host must join the corresponding group for each of its unicast and anycast addresses.






21. Spanning Tree Protocol.






22. Weighted fair queuing.






23. The IP address used by hosts as the default gateway in a VRRP configuration. This address is shared by two or more VRRP routers - much as HSRP works.






24. An 802.1d STP port state in which the port sends and receives frames.






25. Frequency hopping spread spectrum.






26. 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.






27. Defined in FRF.11 - an FR VC that uses a slightly varied header - as compared with FRF.3 data VCs - to accommodate voice payloads directly encapsulated inside the Frame Relay LAPF header.






28. The password required by the enable command. Also - this term may specifically refer to the password defined by the enable password command.






29. Prefix list.






30. 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.






31. The portion of PPP focused on supporting the CDP protocol.






32. AutoQoS is a macro that creates and applies quality of service configurations based on Cisco best-practice recommendations.






33. A term used with Cisco LAN switches - referring to a DSCP value used when making QoS decisions about a frame. This value may not be the actual DSCP value in the IP header encapsulated inside the frame.






34. Controls the distribution of multicast traffic by checking the TTL values configured on the interfaces. It forwards the multicast packet only on those interfaces whose configured TTL value is less than or equal to the TTL value of the multicast packe






35. A wireless LAN that offers connections to the Internet from public places - such as airports - hotels - and coffee shops.






36. A Cisco IOS interface software queue queuing strategy implemented automatically when using either form of Frame Relay fragmentation. The system then interleaves packets from the high-priority queue between fragments of the medium-priority queue.






37. Each 802.11 station periodically sends a probe request frame on each RF channel and monitors probe response frames that all access points within range send back. Stations use the signal strength of the probe response frames to determine which access






38. A set of all devices for which any frame sent by one of the devices would collide with any frames transmitted at the same time by any of the other devices in the set.






39. An MPLS term referring to the first of several labels when an MPLS-forwarded packet has multiple labels (a label stack).






40. A field within a route entry in a routing update - used to associate a generic number with the route. It is used when passing routes between routing protocols - allowing an intermediate routing protocol to pass information about a route that is not n






41. From the perspective of one routing protocol - a route that was learned by using route redistribution.






42. The combination of MPLS labels and links over which a packet will be forwarded over an MPLS network - from the point of ingress to the MPLS network to the point of egress.






43. With EIGRP - the metric value for the lowest-metric route to a particular subnet.






44. The process of taking the payload inside a Layer 2 frame - including the headers of Layer 3 and above - compressing the data - and then uncompressing the data on the receiving router.






45. An issue whereby parts of the RF signal take different paths from the source to the destination - which causes direct and reflected signals to reach the receiver at different times - and corresponding bit errors.






46. With RIP - the regular interval at which updates are sent. Each interface uses an independent timer - defaulting to 30 seconds.






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






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






49. Digital Signal Level 1.






50. A protection against problems caused by unidirectional links between two switches. Uses messaging between switches to detect the loop - err-disabling the port when the link is unidirectional.