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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. 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






2. Reverse ARP.






3. Service set identifier.






4. 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.






5. Link-state database.






6. The protocol used by content engines to manage traffic flow between routers configured for WCCP and between content engines. WCCP takes advantage of the fact that many web pages (and other content) are regularly accessed by users in a given network.






7. A process on a computing device that issues requests for SNMP MIB variables from SNMP agents - receives and processes the MIB data - and accepts unsolicited Trap messages from SNMP agents.






8. Cisco Express Forwarding.






9. A Cisco-proprietary feature by which multiple routers can provide interface IP address redundancy so that hosts using the shared - virtual IP address as their default gateway can still reach the rest of a network even if one or more routers fail.






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






11. Dynamic Multipoint VPN.






12. A designated router that is directly connected with a source of the multicast group.






13. Extensible Authentication Protocol.






14. In MPLS - the mapping of an IP prefix and a label - which is then advertised to neighbors using LDP.






15. Class of Service.






16. A type of spread spectrum that spreads RF signals over the frequency spectrum by representing each data bit by a longer code. 802.11b specifies the use of DSSS.






17. A 3-bit field in an 802.1Q header used for marking frames.






18. 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.






19. Multicast addresses that are not assigned by IANA.






20. Temporal Key Integrity Protocol.






21. A NAT term describing an IP address representing a host that resides inside the enterprise network - with the address being used in packets inside the enterprise network.






22. An MQC-based feature of IOS that is used to classify and mark packets for QoS purposes.






23. The PPP function for fragmenting packets - plus interleaving delay-sensitive later-arriving packets between the fragments of the first packet.






24. 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.






25. A Cisco IOS queuing tool that uses MQC configuration commands - reserves a minimum bandwidth for some queues - provides high-priority scheduling for some queues - and polices those queues to prevent starvation of lower-priority queues during interfac






26. A type of logic for how a router uses a default route. When a default route exists - and the class A - B - or C network for the destination IP address does not exist in the routing table - the default route is used. If any part of that classful netwo






27. A 3-bit field in the first 3 bits of the ToS byte in the IP header - used for QoS marking.






28. Message sent by a PIM-DM router to a downstream router when it receives a Graft message from the downstream router; sent using the unicast address of the downstream router.






29. A T1 alarm state that occurs when a device receives a Yellow Alarm signal. This typically means that the device on the other end of the line is in a Red Alarm state.






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






31. A wireless LAN physical layer that is backward compatible with 802.11b and operates at up to 54-Mbps data rates using OFDM in the 2.4-GHz band.






32. Cisco-proprietary VLAN trunking protocol.






33. A name used for DS1 lines inside the North American TDM hierarchy.






34. Cisco Wireless LAN Solution Engine.






35. 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.






36. An IP variable that defines the largest size allowed in an IP packet - including the IP header. IP hosts must support an MTU of at least 576 bytes.






37. Frame Relay Forum.






38. Any OSPF neighbor for which the database flooding process has completed.






39. A table used by CEF that holds information about adjacent IP hosts to which packets can be forwarded.






40. Provides dynamic inspection of traffic as it traverses the router. It uses Context-Based Access Control (CBAC) to look deeper into a packet than an access list can. It tracks outbound traffic and dynamically allows in responses to that traffic.






41. A standard (RFC 2131) protocol by which a host can dynamically broadcast a request for a server to assign to it an IP address - along with other configuration settings - including a subnet mask and default gateway IP address. DHCP provides a great de






42. With private VLANs - a port that can send and receive frames with all other ports in the private VLAN.






43. A type of routing protocol convergence event in which the metric for a route increases slightly over time because of the advertisement of an invalid route.






44. Designed to solve the problems of multicast duplication and multicast routing loops. For every multicast packet received - a multicast router examines its source IP address - consults its unicast routing table - determines which interface it would us






45. With OSPF - the OSPF router that wins an election amongst all current neighbors. The DR is responsible for flooding on the subnet - and for creating and flooding the type 2 LSA for the subnet.






46. The actual number of packets in a queue at a particular time.






47. A mapping between each DSCP value and a corresponding CoS value - often used in Cisco LAN switches when performing classification for egress queuing.






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






49. The underlying algorithms associated with RIP.






50. The data structure used by OSPF to hold LSAs.