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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 BGP process by which a router reapplies routing policy configuration (route maps - filters - and the like) based on stored copies of sent and received BGP Updates.






2. The operating mode of shaped round-robin that provides behavior like CBWFQ with bandwidth allocated between different traffic classes by a relative amount rather than absolute percentage of the available bandwidth.






3. 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.






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






5. Class-Based Weighted Fair Queuing.






6. A serial-line encoding standard like B8ZS - but with each set of four consecutive 0s being changed to include a Bipolar Violation to maintain synchronization.






7. An IPv6/IPv4 tunneling method that allows isolated IPv6 domains to be connected over an IPv4 network.






8. A technology that sends a high-speed data stream over multiple subcarriers simultaneously. It is highly immune to multipath interference. 802.11a and 802.11g specify the use of OFDM.






9. In the context of SNMP - the Set command is sent by an SNMP manager - to an agent - requesting that the agent set a single identified variable to the stated value. The main purpose is to allow remote configuration and remote operation - such as shutt






10. 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






11. A Cisco-proprietary messaging protocol implemented in WAN switches that can be used to signal network status - including congestion - independent of end-user frames and cells.






12. A single address in each subnet for which packets sent to this address will be broadcast to all hosts in the subnet. It is the highest numeric value in the range of IP addresses implied by a subnet number and prefix/mask.






13. Variable-length subnet masking.






14. 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.






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






16. A NAT term describing the process of multiplexing TCP and UDP flows - based on port numbers - to a small number of public IP addresses. Also called NAT overloading.






17. A Cisco-proprietary messaging protocol used to negotiate the dynamic creation of PortChannels (EtherChannels) and to choose which ports can be placed into an EtherChannel.






18. The Cisco IOS feature by which special short key sequences can be used to move the cursor inside the current command line to more easily change a command.






19. Burst With shaping and policing - the number of additional bits that may be sent after a period of relative inactivity.






20. Finish time.






21. A 3-bit field in the first 3 bits of the ToS byte in the IP header - used for QoS marking.






22. Port Address Translation.






23. Feasible distance.






24. Extensible Authentication Protocol.






25. A switch feature with which the switch watches ARP messages - determines if those messages may or may not be part of some attack - and filters those that look suspicious.






26. With RIP - a per-route timer (default 180 seconds) that begins when a route's metric changes to a larger value.






27. A route that is created to represent one or more smaller component routes - typically in an effort to reduce the size of routing and topology tables.






28. 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.






29. A wireless LAN physical layer that operates at up to 54-Mbps data rates using OFDM in the 5-GHz band.






30. A BGP path attribute that implies how the route was originally injected into some router's BGP table.






31. A switch feature that limits the number of allowed MAC addresses on a port - with optional limits based on the actual values of the MAC addresses.






32. A commonly used name for Multi-VRF CE.






33. IP multicast address range from 224.0.0.0 through 239.255.255.255.






34. Wired Equivalent Privacy.






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






36. On a serial cable - the pin lead set by the DTE to tell the DCE that the DTE wants to send data.






37. The router in a VRRP group that is currently actively forwarding IP packets. Conceptually the same as an HSRP Active router.






38. Flush timer.






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






40. 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.






41. A 16-bit number set with a router config-register command. It is used to set several low-level features related mainly to accessing the router and what the router does when powered on.






42. WRED is a method of congestion avoidance that works by dropping packets before the output queue becomes completely full. WRED can base its dropping behavior on IP Precedence or DSCP values to drop low-priority packets before high-priority packets.






43. The RMON function of tracking a particular variable. RMON events trigger RMON alarms.






44. A group of devices on one or more LANs that are configured (using management software) so that they can communicate as if they were attached to the same wire - when - in fact - they are located on a number of different LAN segments. Because VLANs are






45. Defined in RFC 2289 - a mechanism by which a shared key and a secret key together feed into a hash algorithm - creating a password that is transmitted over a network. Because the shared key is not reused - the hash value is only valid for that indivi






46. WRED compares this setting to the average queue depth to decide whether packets should be discarded. All packets are discarded if the average queue depth rises above this maximum threshold.






47. Low-latency queuing.






48. In MPLS - a term used to define a label that an LSR learned from a neighboring LSR.






49. An MQC-based feature of IOS that is used to classify and mark packets for QoS purposes.






50. Network Address Translation-Protocol Translation.