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






2. A TCP variable that defines the largest number of bytes allowed in a TCP segment's Data field. The calculation does not include the TCP header. With a typical IP MTU of 1500 bytes - the resulting default MSS would be 1460. TCP hosts must support an M






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






4. Source-specific multicast.






5. An optional contention-free 802.11 access protocol that requires the access point to poll wireless stations before they are able to send frames. Not commonly implemented.






6. 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.






7. Records client authentication and roaming events - which are sent to the CiscoWorks Wireless LAN Solution Engine (WLSE) to monitor client associations to specific access points.






8. The characterization of how far EIGRP Query messages flow away from the router that first notices a failed route and goes active for a particular subnet.






9. An IPv6 address format used for publicly registered IPv6 addresses.






10. Aka receiver's advertised window.






11. A BGP feature that defines the IP TTL field value in packets sent between two eBGP peers. This feature is required when using IP addresses other than the interface IP address on the link between peers.






12. A strategy for subnetting a classful network for which masks/prefixes are different for some subnets of that one classful network.






13. In Frame Relay - a link between a router and a Frame Relay switch.






14. 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.






15. Quantum value.






16. A mapping between each DSCP value and a WRED threshold - often used in Cisco LAN switches when performing WRED.






17. Diffusing Update Algorithm.






18. A network/subnet over which two or more OSPF routers have become neighbors - thereby being able to forward packets from one router to another across that network.






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






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






21. 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






22. 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.






23. A Cisco-proprietary feature by which multiple routers can provide interface IP address redundancy - as well as cause a set of clients to load-balance their traffic across multiple routers inside the GLBP group.






24. A dotted-decimal number used to help define the structure of an IP address. The binary 0s in the mask identify the host portion of an address - and the binary 1s identify either the combined network and subnet part (when thinking classfully) or the n






25. 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.






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






27. Time Interval.






28. A message that each host sends - either in response to a router Query message or on its own - to all multicast groups for which it would like to receive multicast traffic.






29. Cisco Wireless LAN Solution Engine.






30. 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.






31. Slow Start Threshold.






32. A term referring to the MQC class-map command and its related subcommands - which are used for classifying packets.






33. In wireless LANs - a mechanism that counters issues related to RF interference by dividing a larger 802.11 data frame into smaller frames that are sent independently to the destination. See also LFI.






34. With a routing update - or routing table entry - the portion of a route that defines the next router to which a packet should be sent to reach the destination subnet. With routing protocols - the Next Hop field may define a router other than the rout






35. A method of providing dynamically configured spoke-to-spoke VPN connectivity in a hub-and-spoke network that significantly reduces configuration required on the spoke routers compared to traditional IPsec VPN environments.






36. 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.






37. 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.






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






39. Inside telcos' original TDM hierarchy - a unit that combines multiple DS0s into a single channel






40. 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.






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






42. 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.






43. A Cisco router feature in which the router works to prevent SYN attacks either by monitoring TCP connections flowing through the router - or by actively terminating TCP connection until the TCP connection is established and then knitting the client-s






44. In IPv6 DNS - the IPv6 equivalent of an IPv4 DNS A record.






45. A NAT term describing an IP address representing a host that resides inside the enterprise network - with the address being used in packets outside the enterprise network.






46. A BGP path attribute that is communicated throughout a single AS to signify which route of multiple possible routes is the best route to be taken when leaving that AS. A larger value is considered to be better.






47. EAP over LAN.






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






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






50. A number between 1 and 64 -511 (public) and 64 -512 and 65 -535 (private) assigned to an AS for the purpose of identifying a specific BGP domain.