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






2. The SNMP specifications - standardized in RFCs - defining the rules by which SNMP MIB variables should be defined.






3. The process of changing the electrical characteristics on a transmission medium - based on defined rules - to represent data.






4. An 802.1d STP port state in which the port sends and receives frames.






5. An FRF standard for LFI for data (FRF.3) VCs.






6. A problem that occurs when an AS does not run BGP on all routers - with synchronization disabled. The routers running BGP may believe they have working routes to reach a prefix - and forward packets to internal routers that do not run BGP and do not






7. Maximum transmission unit.






8. A mechanism used by TCP senders to limit the dynamic window for a TCP connection - to reduce the sending rate when packet loss occurs. The sender considers both the advertised window size and CWND - using the smaller of the two.






9. In BGP - a feature in which BGP routes cannot be considered to be a best route to reach an NLRI unless that same prefix exists in the router's IP routing table as learned via some IGP.






10. The difference between the measured signal power and the noise power that a particular receiver sees at a given time. Higher SNRs generally indicate better performance.






11. An event in which a new packet arrives - needing to be placed into a queue - and the queue is full






12. A basic form of traffic shaping that is applied to an interface or subinterface. By default - it shapes all traffic leaving the interface - but can be modified by using an access control list. The access list controls only what traffic is shaped; GTS






13. A small FIFO queue associated with each router's physical interface - for the purpose of making packets available to the interface hardware - removing the need for a CPU interrupt to start sending the next packet out the interface.






14. 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.






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






16. The RFC 1997 name for the reserved COMMUNITY path attribute known to Cisco IOS as LOCAL_AS. (See LOCAL_AS.)






17. A mechanism that counters collisions caused by hidden nodes. If enabled - the station or access point must first send an RTS frame and receive a CTS frame before sending each data frame.






18. AutoQoS is a macro that creates and applies quality of service configurations based on Cisco best-practice recommendations.






19. The list of entries learned by the switch DHCP snooping feature. The entries include the MAC address used as the device's DHCP client address - the assigned IP address - the VLAN - and the switch port on which the DHCP assignment messages flowed.






20. A type of OSPF packet used to discover neighbors - check for parameter agreement - and monitor the health of another router.






21. A BGP feature by which a router learns iBGP routes - and then forwards them to other iBGP peers - reducing the required number of iBGP peers while also avoiding routing loops.






22. An optimized Layer 3 forwarding path through a router or switch. CEF optimizes routing table lookup by creating a special - easily searched tree structure based on the contents of the IP routing table. The forwarding information is called the Forward






23. On a serial cable - the pin lead set by the DTE to imply that the DTE is ready to signal using pin leads.






24. 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.






25. Orthogonal frequency division multiplexing.






26. As defined in RFC 3623 - graceful restart allows for uninterrupted forwarding in the event that an OSPF router's OSPF routing process must restart. The router does this by first notifying the neighbor routers that the restart is about to occur; the n






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






28. The command used to initialize a SPAN or RSPAN session on a Catalyst switch.






29. Congestion window.






30. A router feature used when a router sees an ARP request searching for an IP host's MAC - when the router believes the IP host could not be on that LAN because the host is in another subnet. If the router has a route to reach the subnet where the ARP-






31. 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.






32. Weighted fair queuing.






33. Differentiated Services.






34. Maximum Response Time.






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






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. A Cisco-proprietary Layer 2 protocol that enables a router to communicate to a switch which multicast group traffic the router does and does not want to receive from the switch.






38. A multicast routing protocol that forwards the multicast traffic only when requested by a downstream router.






39. A type of OSPF stub area for which neither external (type 5) LSAs are introduced - nor type 3 summary LSAs; instead - the ABRs originate and inject default routes into the area. External routes cannot be injected into a totally stubby area.






40. In shaping and policing - commonly used to refer to the shaping or policing rate. For WAN services - a common reference to the bit rate defined in the WAN service business contract for each VC.






41. 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.






42. 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






43. Operates in dense mode and depends on its own unicast routing protocol that is similar to RIP to perform its multicast functions.






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






45. Backup designated router.






46. Label Distribution Protocol.






47. 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.






48. The process of forwarding packets through a router. Also call IP routing.






49. A term referring generically to a server that performs many AAA functions. It also refers to the software product Cisco Secure Access Control Server.






50. A term referring to how a router views a BGP peer relationship - in which the peer is in another AS.