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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. Designated router.






2. A wireless LAN physical layer that operates at up to 54-Mbps data rates using OFDM in the 5-GHz band.






3. Typically used by protocols that perform flow control (like TCP) - a TCP window is the number of bytes that a sender can send before it must pause and wait for an acknowledgement of some of the yet-unacknowledged data.






4. Network Layer Protocol ID is a field in the RFC 2427 header that is used as a Protocol Type field in order to identify the type of Layer 3 packet encapsulated inside a Frame Relay frame.






5. An E-LSR in an MPLS VPN network whose role in a particular discussion is to receive unlabeled packets over customer links and then forward the packets as labeled packets into the MPLS network.






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






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






8. Feasible distance.






9. Per-Hop Behavior.






10. A type of OSPF packet used to discover neighbors - check for parameter agreement - and monitor the health of another router.






11. A Cisco switch feature that allows separation of ports as if they were in separate VLANs - while allowing the use of a single IP subnet for all ports.






12. Challenge Handshake Authentication Protocol.






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






14. An MPLS term describing designs in which one or more MPLS customer sites can be reached from multiple other VPNs.






15. Defined in IEEE 802.1s - a specification for multiple STP instances when using 802.1Q trunks






16. A dotted-decimal number used to help define the structure of an IP address. The binary 0s in the mask identify the host portion of an address - and the binary 1s identify either the combined network and subnet part (when thinking classfully) or the n






17. A BGP feature by which a router learns iBGP routes - and then forwards them to other iBGP peers - reducing the required number of iBGP peers while also avoiding routing loops.






18. 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.






19. 16 bits between the interface ID and global routing prefix in an IPv6 global address - used for subnet assignment inside an enterprise.






20. Border Gateway Protocol.






21. A Cisco-proprietary protocol - used by LAN switches to communicate VLAN configuration.






22. 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.






23. Link-State Acknowledgment.






24. Data Set Ready.






25. Sent by a PIM router to its upstream router to either request that the upstream router forward the group traffic or stop forwarding the group traffic that is currently being forwarded. If a PIM router wants to start receiving the group traffic - it l






26. Link-state database.






27. Cisco IOS Embedded Event Manager - a feature that monitors events on a router and reports their results. Principally intended to increase availability - EEM provides flexible - granular detection and alerting functions.






28. An IPv6 address format used for publicly registered IPv6 addresses.






29. Message sent by a PIM-DM router to its upstream router asking to quickly restart forwarding the group traffic; sent using the unicast address of the upstream router.






30. A type of logic for how a router uses a default route. When a default route exists - and no more specific match is made between the destination of the packet and the routing table - the default route is used.






31. Label Distribution Protocol.






32. Structure of Management Information.






33. Wired Equivalent Privacy.






34. 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.






35. A switch feature with which the switch watches ARP messages - determines if those messages may or may not be part of some attack - and filters those that look suspicious.






36. RFC 1918-defined IPv4 network numbers that are not assigned as public IP address ranges - and are not routable on the Internet. Intended for use inside enterprise networks.






37. Aka network layer reachability information.






38. Penultimate hop popping.






39. 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.






40. Cisco IOS router feature by which a route map determines how to forward a packet - typically based on information in the packet other than the destination IP address.






41. Used to reserve network resources for a flow as it traverses the network. A device that creates an RSVP reservation guarantees that it can provide the bandwidth - latency - or other resources that are requested by RSVP.






42. Dynamic Host Configuration Protocol.






43. An optimized Layer 3 forwarding path through a router. Fast switching optimizes routing table lookup by creating a special - easily searched table of known flows between hosts.






44. A dotted-decimal number that represents a subnet. It is the lowest numeric value in the range of IP addresses implied by a subnet number and prefix/mask.






45. A BGP term referring to an IP prefix and prefix length.






46. The condition in which a route has been in an EIGRP active state for longer than the router's Active timer.






47. Aka minimum CIR.






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






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






50. An early T1 framing standard.