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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 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).






2. Timer An STP timer that dictates how long a port should stay in the listening state and the learning state.






3. With EIGRP - the timer used to determine when a neighboring router has failed - based on a router not receiving any EIGRP messages - including Hellos - in this timer period.






4. An 802.1w RSTP port state in which the port is not the Root Port but is available to become the root port if the current root port goes down.






5. The term referring to a group of iBGP routers in a confederation - with the group members being assigned a hidden ASN for the purposes of loop avoidance.






6. 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






7. Ethernet feature in which a NIC or Ethernet port can both transmit and receive at the same instant in time. It can be used only when there is no possibility of collisions. Loopback circuitry on NIC cards is disabled to use full duplex.






8. A term relating to Cisco LAN switch tail-drop logic - in which multiple tail-drop thresholds may be assigned based on CoS or DSCP - resulting in some frames being discarded more aggressively than others.






9. A protocol - defined in RFC 2865 - that defines how to perform authentication between an authenticator (for example - a router) and an authentication server that holds a list of usernames and passwords.






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






11. Data terminal equipment.






12. Autonomous System Boundary Router. An OSPF router that redistributes routes from some other source into OSPF.






13. 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.






14. Boot Protocol. A standard (RFC 951) protocol by which a LAN-attached host can dynamically broadcast a request for a server to assign it an IP address - along with other configuration settings - including a subnet mask and default gateway IP address.






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






16. With routing protocols - the process by which the router receiving a routing update determines if the routing update came from a trusted router.






17. Modified Deficit Round-Robin.






18. Type of Service byte.






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






20. A Cisco IOS configuration tool for RIP and EIGRP for which the list matches routes in routing updates - and adds a defined value to the sent or received metric for the routes. The value added to the metric is the offset.






21. A multicast routing protocol that forwards the multicast traffic only when requested by a downstream router.






22. Cell Loss Priority.






23. Enhanced Local Management Interface.






24. An Internet standard serial data-link protocol - used on synchronous and asynchronous links - that provides data-link framing - link negotiation - Layer 3 interface features - and other functions.






25. Temporal Key Integrity Protocol.






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






27. A serial-line encoding standard like B8ZS - but with each set of four consecutive 0s being changed to include a Bipolar Violation to maintain synchronization.






28. A component of the IOS IP SLA feature. An IP SLA responder is a router configured to respond to a particular IP SLA message initiated by another router - allowing the routers to work together to provide performance information including UDP jitter an






29. Dynamic Multipoint VPN.






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






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






32. A possible side effect of a scheduler that performs strict-priority scheduling of a queue - which can result in lower-priority queues getting little or no service.






33. 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.






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






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






36. Designated router.






37. Neighbor Advertisement.






38. 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.






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






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






41. In IPv6 - a Router Advertisement message used by an IPv6 router to send information about itself to nodes and other routers connected to that router.






42. In MPLS VPNs - an entity in a single router that provides a means to separate routes in different VPNs. The VRF includes per-VRF instances of routing protocols - a routing table - and an associated CEF FIB.






43. An STP timer that dictates the interval at which the Root switch generates and sends Hello BPDUs.






44. Single-bit fields in the TCP header. For example - the TCP SYN and ACK code bits are used during connection establishment.






45. Custom queuing






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






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






48. A Cisco IOS interface setting - as a percentage between 1 and 99 - that defines how much of the interface's bandwidth setting may be allocated by a queuing tool. The default value is 75 percent.






49. 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.






50. 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.