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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 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.






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






3. Classless interdomain routing.






4. Digital Signal Level 0.






5. Bootstrap Router.






6. A 3-tuple consisting of an IP address - port number - and transport layer protocol. TCP connections exist between a pair of sockets.






7. A term referring to the process of applying the Message Digest 5 (MD5) algorithm to a string - resulting in another value. The original string cannot be easily computed even when the hash is known - making this process a strong method for storing pas






8. An enhanced version of WEP that is part of the 802.11i standard and has an automatic key-update mechanism that makes it much more secure than WEP. TKIP is not as strong as AES in terms of data protection.






9. Common Spanning Tree.






10. 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.






11. The range 239.0.0.0 through 239.255.255.255 that IANA has assigned for use in private multicast domains.






12. Reported distance or Route Distinguisher.






13. Layer x PDU.






14. The process of taking the IP and TCP headers of a packet - compressing them - and then uncompressing them on the receiving router.






15. A Cisco-proprietary feature. After a Cisco multicast router receives IGMP Join or Leave messages from hosts - it communicates to the connected Cisco switches - telling them which hosts (based on their unicast MAC addresses) have joined or left each m






16. Allows the router to act as an inline IPS - doing deep packet inspection.






17. From a Layer 1 perspective - the process of using special strings of electrical signals over a transmission medium to inform the receiver as to which bits are overhead bits - and which fit into individual subchannels.






18. Access Control Entry. An individual line in an ACL.






19. Peak information rate.






20. An 802.1d STP port state in which the port does not send or receive frames - except for listening for received Hello BPDUs.






21. 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.






22. 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






23. An STP timer that dictates how long a switch should wait when it ceases to hear Hellos.






24. A logical concept that represents the path over which frames travel between DTEs. VCs are particularly useful when comparing Frame Relay to leased physical circuits.






25. A characteristic of OSPF interfaces that determines whether a DR election is attempted - whether or not neighbors must be statically configured - and the default Hello and Dead timer settings.






26. IP multicast address range from 224.0.0.0 through 239.255.255.255.






27. Timer An STP timer that dictates how long a port should stay in the listening state and the learning state.






28. Inverse ARP.






29. Defined in IEEE 802.1AD - defines a messaging protocol used to negotiate the dynamic creation of PortChannels (EtherChannels) and to choose which ports can be placed into an EtherChannel.






30. Reliable Transport Protocol.






31. Hot Standby Router Protocol.






32. EIGRP jargon meaning that EIGRP has placed a route into active status.






33. Rendezvous point.






34. The structure inside telcos' original digital circuit build-out in the mid-1900s - based upon using TDM to combine and disperse smaller DS levels into larger levels - and vice versa.






35. 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.






36. Cisco IOS Embedded Event Manager - a feature that monitors events on a router and reports their results. Principally intended to increase availability - EEM provides flexible - granular detection and alerting functions.






37. A set of packets in an MPLS network for which the MPLS network will apply the exact same forwarding behavior.






38. Expedited Forwarding.






39. A serial-line encoding standard that substitutes Bipolar Violations in a string of eight binary 0s to provide enough signal transitions to maintain synchronization.






40. Method by which a dense-mode routing protocol distributes multicast traffic from a source to all the segments of a network. Also called shortest-path tree (SPT) - because it uses the shortest routing path from the source to the segments of the networ






41. A PPP feature used to load balance multiple parallel links at Layer 2 by fragmenting frames - sending one frame over each of the links in the bundle - and reassembling them at the receiving end of the link.






42. Protocol Independent Multicast dense-mode routing protocol.






43. 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.






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






45. A BGP path attribute that lists the next-hop IP address used to reach an NLRI.






46. Label switched path.






47. A characterization of a BGP path attribute in which all BGP implementations must support and understand the attribute (well known) - but BGP Updates can either include the attribute or not depending on whether a related feature has been configured (d






48. Receiver's advertised window.






49. In the PIM-SM design - the central distribution point to which the multicast traffic is first delivered from the source designated router.






50. An optional transitive BGP path attribute that - for a summary route - lists the BGP RID and ASN of the router that created the summary.







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