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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 type of spread spectrum that spreads RF signals over the frequency spectrum by transmitting the signal at different frequencies according to a hopping pattern. One of the original 802.11 physical layers used FHSS to offer data rates of 1 and 2 Mbps






2. 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.






3. Per-VLAN Spanning Tree Plus.






4. 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.






5. 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






6. 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.






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






8. 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






9. 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.






10. Not-so-stubby area.






11. Regeneration of the Layer 2 encapsulation removed from frames forwarded in a SPAN session.






12. Type of Service byte.






13. A term used with WFQ for the number assigned to a packet as it is enqueued into a WFQ. WFQ schedules the currently lowest SN packet next.






14. Maximum Segment Size.






15. The second byte of the IP header - formerly known as the ToS byte and redefined by DiffServ.






16. Defined in RFC 826 - a protocol used on LANs so that an IP host can discover the MAC address of another device that is using a particular IP address.






17. Quantum value.






18. A characterization of a BGP path attribute in which BGP implementations are not required to support the attribute (optional) - and for which if a router receives a route with such an attribute - the router should remove the attribute before advertisi






19. Label Switch Router.






20. Challenge Handshake Authentication Protocol.






21. The combination of MPLS labels and links over which a packet will be forwarded over an MPLS network - from the point of ingress to the MPLS network to the point of egress.






22. A method that creates three thresholds per egress queue in the Cisco 3560 switch. Traffic is divided into the three queues based on CoS value - and given different likelihoods (weight) for tail drop when congestion occurs based on which egress queue






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






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






25. A technology that enables frequency reuse. Two variants exist: frequency hopping (FHSS) and direct sequence (DSSS). Both techniques spread the signal power over a relatively wide portion of the frequency spectrum over time - to reduce interference be






26. On a serial cable - the pin lead set by the DCE to tell the DTE that the DTE is allowed send data.






27. A set of QoS RFCs that redefines the IP header's ToS byte - and suggests specific settings of the DSCP field and the implied QoS actions based on those settings.






28. The same thing as TCP code bits. See TCP code bits.






29. A type of logic for how a router uses a default route. A convention for discussing and thinking about IP addresses by which class A - B - and C default network prefixes (of 8 - 16 - and 24 bits - respectively) are considered.






30. A router that should either permanently or temporarily not be used as a transit router. Can wait a certain time after OSPF process start - or after BGP notifies OSPF that BGP has converged - before ceasing to be a stub router.






31. Jargon used by STP mostly when discussing the root election process; refers to a Hello with a lower bridge ID. Sometimes refers to a Hello with the same bridge ID as another - but with better values for the tiebreakers in the election process.






32. Ready To Send.






33. Discard Eligible.






34. Priority queue and priority queuing.






35. Defines a particular behavior for FTP regarding the establishment of data TCP connections. In active mode - the FTP client uses the FTP PORT command - over the FTP control connection - to tell the FTP server the port on which the client should be lis






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






37. External BGP.






38. Backward Explicit Congestion Notification.






39. 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).






40. 64 bits at the end of an IPv6 global address - used to uniquely identify each host in a subnet.






41. A protocol used for reliable multicast and unicast transmissions. Used by EIGRP.






42. Distance Vector Multicast Routing Protocol.






43. Data Carrier Detect.






44. An Internet standard authentication protocol that uses secure hashes and a three-way handshake to perform authentication over a PPP link.






45. Provider router.






46. The process - defined by FRF.5 and FRF.8 - for combining ATM and FR technologies for an individual VC.






47. 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.






48. An administrative setting - included in Hellos - that is the first criteria for electing a DR. The highest priority wins - with values from 1-255 - with priority 0 meaning a router cannot become DR or BDR.






49. Label Distribution Protocol.






50. 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.