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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 DiffServ PHB that defines eight values that provide backward compatibility with IP Precedence.






2. Dynamic Multipoint VPN.






3. 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.






4. With private VLANs - a secondary VLAN in which the ports can send and receive frames with each other - but not with ports in other secondary VLANS.






5. Bipolar 8 Zero Substitution. A serial-line encoding standard that substitutes Bipolar Violations in a string of eight binary 0s to provide enough signal transitions to maintain synchronization.






6. Bipolar Violation.






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






8. A method of obtaining an IPv6 address that uses DHCPv6. See also stateless autoconfiguration.






9. A security standard that includes both TKIP and AES and was ratified by the Wi-Fi Alliance.






10. An SPF calculation for which a router does not need to run SPF for any LSAs inside its area - but instead runs a very simple algorithm for changes to LSAs outside its own area.






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






12. With some routing protocols - the time period between successive Hello messages.






13. 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






14. A subset of a classful IP network - as defined by a subnet mask - which used to address IP hosts on the same Layer 2 network in much the same way as a classful network is used.






15. A style of attack in which an ICMP Echo is sent with a directed broadcast (subnet broadcast) destination IP address - and a source address of the host that is being attacked. The attack can result in the Echo reaching a large number of hosts - all of






16. Link-state database.






17. On a multiaccess network - when a PIM-DM or PIM-SM router receives a Prune message - it starts a 3-second timer. If it receives a Join message on the multiaccess network from another router before the timer expires - it considers the message as an ov






18. 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.






19. With routing protocols - the process by which the router receiving a routing update determines if the routing update came from a trusted router.






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






21. In TCP - a TCP host sets the TCP header's Window field to the number of bytes it allows the other host to send before requiring an acknowledgement. In effect - the receiving host - by stating a particular window size - grants the sending host the rig

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22. A wireless LAN that offers connections to the Internet from public places - such as airports - hotels - and coffee shops.






23. Class of Service.






24. An Internet standard serial data-link protocol - used on synchronous and asynchronous links - that provides data-link framing - link negotiation - Layer 3 interface features - and other functions.






25. A category used by a policer to classify packets relative to the traffic contract. The bit rate implied by all conforming packets is within the traffic contract.






26. An OSPF area into which external (type 5) LSAs are not introduced by its ABRs; instead - the ABRs originate and inject default routes into the area.






27. Diffusing Update Algorithm.






28. 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






29. Sent by a PIM-DM or PIM-SM router when it receives a multicast packet for a group on a LAN interface that is in the outgoing interface list for the group; includes the administrative distance of the unicast routing protocol used to learn the network






30. Customer edge.






31. Data Terminal Ready.






32. 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.






33. Wired Equivalent Privacy.






34. A Cisco IOS interface software queue queuing strategy implemented automatically when using either form of Frame Relay fragmentation. The system then interleaves packets from the high-priority queue between fragments of the medium-priority queue.






35. Forwarding Equivalence Class.






36. With EIGRP - a route that is not a successor route - but that meets the feasibility condition; can be used when the successor route fails - without causing loops.






37. Maximum transmission unit.






38. An early T1 framing standard.






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






40. A characteristic of OSPF interfaces that determines whether a DR election is attempted - whether or not neighbors must be statically configured - and the default Hello and Dead timer settings.






41. 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.






42. Label Distribution Protocol.






43. Removing unwanted VLANs from a Layer 2 path.






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






45. 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.






46. 64 bits at the end of an IPv6 global address - used to uniquely identify each host in a subnet.






47. Sent by a PIM router - by default every 30 seconds - on every interface on which PIM is configured to discover neighbors - establish adjacency - and maintain adjacency.






48. A Cisco 12000 series router feature that combines the key features of LLQ and CQ to provide similar congestion-management features.






49. Custom queuing






50. 16 bits between the interface ID and global routing prefix in an IPv6 global address - used for subnet assignment inside an enterprise.







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