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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. Defined in RFCs 1517-1520 - a scheme to help reduce Internet routing table sizes by administratively allocating large blocks of consecutive classful IP network numbers to ISPs for use in different global geographies. CIDR results in large blocks of n






2. An FRTS configuration construct - configured with the map-class frame-relay global configuration command.






3. Cisco-proprietary STP feature in which switches use messaging to confirm the loss of Hello BPDUs in a switch's Root Port - to avoid having to wait for maxage to expire - resulting in faster convergence.






4. A tunneling protocol that can be used to encapsulate many different protocol types - including IPv4 - IPv6 - IPsec - and others - to transport them across a network.






5. A name used for DS3 lines inside the European TDM hierarchy.






6. 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.






7. The range 233.0.0.0 through 233.255.255.255 that IANA has reserved (RFC 2770) on an experimental basis. It can be used by anyone who owns a registered autonomous system number to create 256 global multicast addresses.






8. When subnetting a class A - B - or C address - the subnet for which all subnet bits are binary 0.






9. A neighbor state that signifies the other router has reached neighbor status - having passed the parameter check.






10. Defines a particular wireless LAN. The SSID configured in the radio card must match the SSID in the access point before the station can connect with the access point.






11. Diffusing Update Algorithm.






12. An EIGRP message that is used by a router to notify its neighbors when the router is gracefully shutting down.






13. The IP address used by hosts as the default gateway in a VRRP configuration. This address is shared by two or more VRRP routers - much as HSRP works.






14. Dynamic ARP Inspection.






15. Another name for 802.1Q-in-Q. See 802.1Q-in-Q.






16. Aka receiver's advertised window.






17. Bootstrap Router.






18. A type of OSPF packet used to acknowledge LSU packets.






19. An ITU standard Frame Relay header - including the DLCI - DE - FECN - and BECN bits in the LAPF header - and a frame check in the LAPF trailer.






20. The Lempel Ziv STAC compression algorithm is used in Frame Relay networks to define dynamic dictionary entries that list a binary string from the compressed data and an associated smaller string that represents it during transmission






21. A standards-based way of helping routers find Rendezvous Points (RP). RPs notify BSRs of the groups they handle. BSRs in turn flood the group-to-RP mappings throughout the network. Each router individually determines which RP to use for a particular






22. 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.






23. A mechanism for conserving battery power in wireless stations. The access point buffers data frames destined to sleeping stations - which wake periodically to learn from information in the beacon frame whether or not data frames are waiting for trans






24. IP Control Protocol.






25. An EIGRP router's reaction to an input event - leading to the use of a feasible successor or going active on a route.






26. 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.






27. Type of Service byte.






28. A Cisco IOS configuration tool for RIP and EIGRP for which the list matches routes in routing updates - and adds a defined value to the sent or received metric for the routes. The value added to the metric is the offset.






29. A list of interspersed alphanumeric literals and metacharacters that are used to apply complex matching logic to alphanumeric strings. Often used for matching AS_PATHs in Cisco routers.






30. 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.






31. Digital subscriber line - a common Internet service type for residential and business customers.






32. Per-VLAN Spanning Tree Plus.






33. A 1-byte field in the IP header - originally defined by RFC 791 for QoS marking purposes.






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






35. When multiple routers are connected to a subnet - only one should be sending IGMP queries. It is called a querier. IGMPv1 does not have any rules for electing a querier. In IGMPv2 and IGMPv3 - a router with the lowest interface IP address on the subn






36. 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.






37. Low-latency queuing.






38. The first 4 bits of the first octet must be 1110. The last 28 bits are unstructured.






39. Network Address Translation-Protocol Translation.






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






41. Cisco Express Forwarding.






42. A prestandard (at the time of publication) wireless LAN physical layer that offers data rates in the hundreds of megabits per second.






43. 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.






44. An EIGRP message that identifies neighbors - exchanges parameters - and is sent periodically as a keepalive function. Hellos do not require an Ack.






45. Dynamic Multipoint VPN.






46. Jargon referring to a policer action through which - instead of discarding an out-of-contract packet - the policer marks a different IPP or DSCP value - allowing the packet to continue on its way - but making the packet more likely to be discarded la






47. Class Selector.






48. Also called VLAN trunking - a method (using either the Cisco ISL protocol or the IEEE 802.1Q protocol) to support carrying traffic between switches for multiple VLANs that have members on more than one switch.






49. A queuing scheduler concept - much like CQ's scheduler - in which queues are given some service in sequence. This term is often used with queuing in Cisco LAN switches.






50. A T1 alarm state that occurs when a device receives a Yellow Alarm signal. This typically means that the device on the other end of the line is in a Red Alarm state.