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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. The most significant bit in the most significant byte of an Ethernet MAC address - its value implies that the address is a unicast MAC address (binary 0) or not (binary 1).






2. Wi-Fi Protected Access. A security standard that includes both TKIP and AES and was ratified by the Wi-Fi Alliance.






3. An optional nontransitive BGP path attribute that lists the route reflector cluster IDs through which a route has been advertised - as part of a loop-prevention process similar to the AS_PATH attribute.






4. An SPF calculation as a result of changes inside the same area as a router - for which the SPF run must examine the full LSDB.






5. Inter-Switch Link.






6. Quantum value.






7. Variable-length subnet masking.






8. A switch feature in which the switch examines DHCP messages and - for untrusted ports - filters all messages typically sent by servers and inappropriate messages sent by clients. It also builds a DHCP snooping binding table that is used by DAI and IP






9. The 802.1X driver that supplies a username/password prompt to the user and sends/receives the EAPoL messages.






10. Common Spanning Tree.






11. A basic form of traffic shaping that is applied to an interface or subinterface. By default - it shapes all traffic leaving the interface - but can be modified by using an access control list. The access list controls only what traffic is shaped; GTS






12. Link-State Acknowledgment.






13. A message sent by a router - after receiving a Leave message from a host - to determine whether there are still any active members of the group. The router uses the group address as the destination address.






14. The process of sending an infinite-metric route in routing updates when that route fails.






15. In the context of SNMP - the GetNext command is sent by an SNMP manager - to an agent - requesting the value of a single MIB variable. The GetNext request identifies a variable for which the manager wants the variable name and value of the next MIB l






16. Virtual Routing and Forwarding table.






17. A wireless LAN that includes the use of access points. Infrastructure mode connects wireless users to a wired network and allows wireless users to roam throughout a facility between different access points. All 802.11 data frames in an infrastructure






18. A message sent by each host - either in response to a router query or on its own - to all multicast groups for which it would like to receive multicast traffic. The destination address on the Report is 224.0.0.22 - and a host can specify the source a






19. 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 forward the attribute unchanged (tran






20. Backup designated router.






21. Dynamic Host Configuration Protocol.






22. From one multicast router's perspective - the upstream router is another router that has just forwarded a multicast packet to that router.






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






24. The first 6 bits of the DS field - used for QoS marking.






25. Variable name for the time interval used by shapers and by CAR.






26. Internet Group Management Protocol.






27. A name used for DS1 lines inside the European TDM hierarchy.






28. A route that is used for forwarding packets when the packet does not match any more specific routes in the IP routing table.






29. Provider router.






30. Superframe






31. Secure Shell protocol used for character-oriented command-line access and configuration. A highly secure alternative to Telnet.






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






33. With PIM on a multiaccess network - the PIM router with the highest IP address on the subnet. It is also the IGMPv1 Querier. The DR is responsible for the following tasks: - Sending PIM register and PIM join and prune messages toward the RP to infor






34. 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.






35. Cisco Group Management Protocol.






36. Expedited Forwarding.






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






38. When a PIM-SM router switches from RPT to SPT - it sends a PIM-SM Prune message for the source and the group with the RP bit set to its upstream router on the shared tree. RFC 2362 uses the notation PIM-SM (S - G) RP-bit Prune for this message.






39. The 32-bit number used to represent an OSPF router.






40. The underlying algorithms associated with RIP.






41. An OSPF area into which external (type 5) LSAs are not introduced by its ABRs; instead - the ABRs originate and inject default routes into the area.






42. Sent by a PIM-DM or PIM-SM router when it receives a multicast packet for a group on a LAN interface that is in the outgoing interface list for the group; includes the administrative distance of the unicast routing protocol used to learn the network






43. An 802.1d STP port state in which the port has been administratively disabled.






44. An Internet standard (RFC 1305) that defines the messages and modes used for IP hosts to synchronize their time-of-day clocks.






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






46. 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.






47. An IEEE standard that - when used with EAP - provides user authentication before their connected switch port allows the device to fully use the LAN.






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






49. After a host receives an IGMP Query - the amount of time (default - 10 seconds) the host has to send the IGMP Report.






50. 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.