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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. Label Forwarding Information Base.






2. The process of combining multiple synchronized input signals over a single medium by giving each signal its own time slot - and then breaking out those signals.






3. An OSPF timer that determines how long an LSA can remain in the LSDB without having heard a reflooded copy of the LSA.






4. 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.






5. 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






6. Class-Based Weighted Fair Queuing.






7. 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.






8. Switched virtual circuit.






9. Edge LSR.






10. A local Cisco-proprietary BGP setting that is not advertised to any peers. A larger value is considered to be better.






11. Protocol data unit.






12. A Frame Relay traffic shaping feature during which the shaping rate is reduced when the shaper notices congestion through the receipt of BECN or ForeSight messages.






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






14. A type of OSPF packet used to exchange and acknowledge LSA headers. Sometimes called DBD.






15. Message Digest 5.






16. The 802.1X driver that supplies a username/password prompt to the user and sends/receives the EAPoL messages.






17. 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






18. Extended Superframe.






19. 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.






20. A T1 alarm state that occurs when a device has detected a local LOF/LOS/AIS condition. The device in Red alarm state then sends a Yellow alarm signal.






21. 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.






22. Hot Standby Router Protocol.






23. An NTP mode in which an NTP host adjusts its clock in relation to an NTP server's clock.






24. 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.






25. A switch feature that examines incoming frames - comparing the source IP and MAC addresses to the DHCP snooping binding database - filtering frames whose addresses are not listed in the database for the incoming interface.






26. A method for how a TCP sender grows its calculated CWND variable - thereby growing the allowed window for the connection. Slow Start grows CWND at an exponential rate.






27. Smoothed Round-Trip Time.






28. 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.






29. Class of Service.






30. Spanning Tree Protocol.






31. A Cisco IOS configuration tool for routing protocols by which routing updates may be filtered.






32. Auto-Rendezvous Point. Cisco-proprietary protocol that can be used to designate an RP and send RP-Announce messages that advertise its IP address and groups. Also - it can be used to designate a mapping agent that interprets what IP address RP is adv






33. Class Selector.






34. Another term for summary route.






35. An early T1 framing standard.






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






37. 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.






38. A WRED process by which WRED discards all newly arriving packets intended for a queue - based on whether the queue's maximum threshold has been exceeded.






39. Customer edge.






40. Aka network layer reachability information.






41. Tag Distribution Protocol.






42. The first 6 bits of the DS field - used for QoS marking.






43. Voice over Frame Relay.






44. Penultimate hop popping.






45. With private VLANs - a secondary VLAN in which the ports can send and receive frames only with promiscuous ports in the primary VLAN.






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






47. Used by WRED to calculate the rate at which the average queue depth changes as compared with the current queue depth. The larger the number - the slower the change in the average queue depth.






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






49. Sequence number.






50. With routing protocols - the measurement of favorability that determines which entry will be installed in a routing table if more than one router is advertising that exact network and mask.