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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. WRED compares this setting to the average queue depth to decide whether packets should be discarded. All packets are discarded if the average queue depth rises above this maximum threshold.






2. An effort to reduce the query scope with EIGRP - using route summarization or EIGRP stub routers.






3. In PIM-SM - the path of the group traffic that flows from the RP to the routers that need the traffic. It is also called the root-path tree (RPT) - because it is rooted at the RP.






4. A VC that is set up dynamically when needed. An SVC can be equated to a dial-on-demand connection in concept.






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






6. Local Management Interface.






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






8. An FRF standard for Frame Relay-to-ATM Service Interworking in which one DTE uses Frame Relay and one uses ATM.






9. A calculation of the length of the AS_PATH PA - which includes 1 for each number in the AS_SEQ - 1 for an entire AS_SET segment - and possibly other considerations.






10. An OSPF external route for which internal OSPF cost is not added to the cost of the route as it was redistributed into OSPF.






11. The process of taking the payload inside a Layer 2 frame - including the headers of Layer 3 and above - compressing the data - and then uncompressing the data on the receiving router.






12. A time value that each wireless station must set based on the duration value found in every 802.11 frame. The time value counts down and must be equal to zero before a station is allowed to access the wireless medium. The result is a collision-avoida






13. In the context of SNMP - the Trap command is sent by an SNMP agent - to a manager - when the agent wants to send unsolicited information to the manager. Trap is not followed by a Response message from the receiving SNMP manager.






14. IP multicast address range from 224.0.0.0 through 239.255.255.255.






15. An FRF standard for LFI for data (FRF.3) VCs.






16. 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.






17. A mechanism in which VLAN information can extend over another set of 802.1Q trunks by tunneling the original 802.1Q traffic with another 802.1Q tag. It allows a service provider to support transparent VLAN services with multiple customers - even if t






18. An NTP client that assumes that a server will send NTP broadcasts - removing the requirement for the client to have the NTP server's IP address preconfigured.






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






20. A router that is not an ABR or ASBR in that all of its interfaces connect to only a single OSPF area.






21. In the context of SNMP - the Response command is sent by an SNMP agent - back to a manager - in response to any of the three types of Get requests - or in response to a Set request. It is also used by a manager in response to a received Inform comman






22. An IOS feature in which multiple routing tables and routing forwarding instances exist in a single router - with interfaces being assigned to one of the several VRFs. This feature allows separating of routing domains inside a single router platform.






23. A 48-bit address that is calculated from a Layer 3 multicast address by using 0x0100.5E as the multicast vendor code (OUI) for the first 24 bits - always binary 0 for the 25th bit - and copying the last 23 bits of the Layer 3 multicast address.






24. Defines a particular behavior for FTP regarding the establishment of TCP data connections. In passive mode - an FTP server uses the FTP PORT command - over the FTP control connection - to tell the FTP client the port on which the server will be liste






25. A Cisco IOS configuration tool for routing protocols by which routing updates may be filtered.






26. A BGP path attribute that implies how the route was originally injected into some router's BGP table.






27. Digital Signal Level 3.






28. A reserved value for the BGP COMMUNITY path attribute that implies that the route should not be advertised outside the local AS.






29. Burst With shaping and policing - the number of additional bits that may be sent after a period of relative inactivity.






30. An interface on a Cisco IOS-based switch that is treated as if it were an interface on a router.






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






32. Access Control Entry. An individual line in an ACL.






33. In OSPF - a number assigned to each LSA - ranging from 0x80000001 and wrapping back around to 0x7FFFFFFF - which is used to determine which LSA is most recent.






34. With private VLANs - a secondary VLAN in which the ports can send and receive frames only with promiscuous ports in the primary VLAN.






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






36. Distance Vector Multicast Routing Protocol.






37. Link-State Update.






38. Refers to how a router views a BGP peer relationship - in which the peer is in the same AS.






39. Database Description.






40. Inside telcos' original TDM hierarchy - the smallest unit of transmission at 64 kbps.






41. Aka Rapid Per-VLAN Spanning Tree Plus.






42. A Cisco-proprietary protocol used to dynamically negotiate whether the devices on an Ethernet segment want to form a trunk and - if so - which type (ISL or 802.1Q).






43. A standard (RFC 903) protocol by which a LAN-attached host can dynamically broadcast a request for a server to assign it an IP address. See also ARP.






44. Out of Frame.






45. A BGP neighbor state in which the BGP neighbors have stabilized and can exchange routing information using BGP Update messages.






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






47. From a Layer 1 perspective - the process of using special strings of electrical signals over a transmission medium to inform the receiver as to which bits are overhead bits - and which fit into individual subchannels.






48. Data-link connection identifier.






49. A logical group of content engines running WCCP between them. The lead content engine determines the traffic distribution within the cluster - for optimum performance and scalability.






50. 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.