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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. A Frame Relay address used in Frame Relay headers to identify the VC






2. 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.






3. 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.






4. A PPP feature used to load balance multiple parallel links at Layer 2 by fragmenting frames - sending one frame over each of the links in the bundle - and reassembling them at the receiving end of the link.






5. An alternative software loaded into a Cisco router - used for low-level debugging and for password recovery.






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






7. WRED is a method of congestion avoidance that works by dropping packets before the output queue becomes completely full. WRED can base its dropping behavior on IP Precedence or DSCP values to drop low-priority packets before high-priority packets.






8. A Cisco-proprietary STP implementation - created many years before IEEE 802.1s and 802.1w - that speeds convergence and allows for one STP instance for each VLAN.






9. Direct sequence spread spectrum.






10. Cisco-proprietary VLAN trunking protocol.






11. In the context of SNMP - the Get command is sent by an SNMP manager - to an agent - requesting the value of a single MIB variable identified in the request. The Get request identifies the exact variable whose value the manager wants to retrieve. Intr






12. 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.






13. A term used in this book to refer to a route that is included in a larger summary route.






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






15. The one VLAN on an 802.1Q trunk for which the endpoints do not add the 4-byte 802.1Q tag when transmitting frames in that VLAN.






16. Per-VLAN Spanning Tree Plus.






17. Weighted tail drop.






18. Database Description.






19. A category used by a policer to classify packets relative to the traffic contract. With two-color policers - these packets are considered to be above the contract; for three-color - these packets are above the Bc setting - but within the Be setting.






20. The most recent standardized set of generic SNMP MIB variables - defined in RFC 1213 and updated in RFCs 2011 through 2013.






21. When a Query is received from a router - each host randomly picks a time between 0 and the Maximum Response Time period to send a Report. When the host with the smallest time period first sends the Report - the rest of the hosts suppress their report






22. A BGP process by which a router reapplies routing policy configuration (route maps - filters - and the like) based on stored copies of sent and received BGP Updates.






23. 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.






24. An MPLS VPN term referring to the more efficient choice of popping the outer label at the second-to-last (penultimate) LSR - which then prevents the egress PE from having to perform two LFIB lookups to forward the packet.






25. An EIGRP message that is used to ask neighboring routers to verify their route to a particular subnet. Query messages require an Ack.






26. A queuing scheduler's logic by which - if a particular queue has packets in it - those packets always get serviced next.






27. Software-based collection and reporting tool for data reported by NetFlow.






28. A component that interfaces with a phone using IP and provides connections to the Public Switched Telephone Network (PSTN).






29. The rate at which a policer limits the bits exiting or entering the policer.






30. The All OSPF Routers multicast IP address - listened for by all OSPF routers.






31. IP multicast address range from 224.0.0.0 through 239.255.255.255.






32. Receiver's advertised window.






33. Policing in which a single rate is metered - and packets are placed into one of two categories (conform or exceed).






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






35. Multicast Listener Discovery.






36. Cisco-proprietary STP feature in which an access layer switch is configured to be unlikely to become Root or to become a transit switch. Also - convergence upon the loss of the switch's Root Port takes place in a few seconds.






37. EIGRP jargon meaning that EIGRP has placed a route into active status.






38. Link Fragmentation and Interleaving.






39. An integer setting for EIGRP and IGRP. Any FS route whose metric is less than this variance multiplier times the successor's metric is added to the routing table - within the restrictions of the maximum-paths command.






40. One of the two modes of MDRR - in which the priority queue is serviced between each servicing of the non-priority queues.






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






42. A routing protocol feature by which the routing update includes the entire set of routes - even if some or all of the routes are unchanged.






43. The specific frequency subband on which the radio card or access point is operating. The RF channel is set in the access point or ad hoc stations.






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






45. Web Cache Communication Protocol.






46. A multicast routing protocol whose default action is to flood multicast packets throughout a network.






47. A set of all devices that receive broadcast frames originating from any device within the set. Devices in the same VLAN are in the same broadcast domain.






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






49. This term has two BGP-related definitions. First - it is the normal process in which a router - before sending an Update to an eBGP peer - adds its local ASN to the beginning of the AS_PATH path attribute. Second - it is the routing policy of purpose






50. Carrier sense multiple access with collision detection. A media-access mechanism where devices ready to transmit data first check the channel for a carrier. If no carrier is sensed for a specific period of time - a device can transmit. If two devices