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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 Lempel Ziv STAC compression algorithm is used in Frame Relay networks to define dynamic dictionary entries that list a binary string from the compressed data and an associated smaller string that represents it during transmission






2. An EIGRP message that is used to acknowledge reliable EIGRP messages - namely Update - Query - and Reply messages. Acks do not require an Ack.






3. Type of Service byte.






4. 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






5. Modular QoS CLI.






6. Neighbor Solicitation.






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






8. 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






9. With EIGRP - the route to each destination for which the metric is the lowest of all known routes to that network.






10. A Cisco IOS queuing tool that uses MQC configuration commands and reserves a minimum bandwidth for each queue.






11. A process on a computing device that accepts SNMP requests - responds with SNMP-structured MIB data - and initiates unsolicited Trap messages back to an SNMP management station.






12. A definition that determines the data structure and information implied by a particular LSA.






13. Dynamic Trunking Protocol.






14. Modified Deficit Round-Robin.






15. With RIP - a per-route timer - which is reset and grows with the Invalid timer. When the Flush timer mark is reached (default 240 seconds) - the router removes the route from the routing table - and now accepts any other routes about the failed subne






16. A contiguous group of data links that share the same OSPF area number.






17. An EIGRP router's reaction to an input event - leading to the use of a feasible successor or going active on a route.






18. Protocol Independent Multicast sparse-mode routing protocol.






19. 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.






20. 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.






21. Out of Frame.






22. An MPLS term referring to any device that can forward packets that have MPLS labels.






23. The algorithm used by OSPF and IS-IS to compute routes based on the LSDB.






24. A BGP router that forwards iBGP-learned routes to other iBGP routers.






25. Prefix list.






26. When subnetting a class A - B - or C address - the subnet for which all subnet bits are binary 1.






27. The process of taking a PDU from some other source and placing a header in front of the original PDU - and possibly a trailer behind it.






28. The encapsulation of EAP messages directly inside LAN frames. This encapsulation is used between the supplicant and the authenticator.






29. Class-Based Marking.






30. In the context of SNMP - the GetBulk command is sent by an SNMP manager - to an agent - requesting the values of multiple variables. The GetBulk command allows retrieval of complex structures - like a routing table - with a single command - as well a






31. 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.






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






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






34. With private VLANs - a secondary VLAN in which the ports can send and receive frames with each other - but not with ports in other secondary VLANS.






35. Controls access to the Internet in public wireless LANs.






36. Operation - Administration - and Maintenance.






37. Forward Explicit Congestion Notification.






38. Alternate Mark Inversion. A serial-line encoding standard that sends alternating positive and negative 3-volt signals for binary 1 - and no signal (0 V) for binary 0.






39. In the PIM-SM design - the process by which a PIM-SM router can build the SPT between itself and the source of a multicast group and take advantage of the most efficient path available from the source to the router as long as it has one directly conn






40. Enhances RP redundancy by providing a method for RPs to exchange multicast source information - even between multicast domains.






41. The portions of PPP focused on features that are related to specific Layer 3 protocols.






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






43. A name used for DS3 lines inside the North American TDM hierarchy.






44. 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.






45. Cisco-proprietary STP feature in which switches use messaging to confirm the loss of Hello BPDUs in a switch's Root Port - to avoid having to wait for maxage to expire - resulting in faster convergence.






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






47. A characteristic of OSPF interfaces that determines whether a DR election is attempted - whether or not neighbors must be statically configured - and the default Hello and Dead timer settings.






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






49. In the context of SNMP - the Inform command is sent by an SNMP manager to communicate a set of variables - and their values - to another SNMP manager. The main purpose is to allow multiple managers to exchange MIB information - and work together - wi






50. Classless interdomain routing.