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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 first 48 bits of an IPv6 global address - used for efficient route aggregation.






2. Receivers subscribe to an (S -G) channel when they request to join a multicast group. That is - they specify the unicast IP address of their multicast source and the group multicast address. SSM is typically used in very large multicast deployments s






3. 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.






4. A BGP path attribute that allows routers in one AS to set a value and advertise it into a neighboring AS - impacting the decision process in that neighboring AS. A smaller value is considered better. Also called the BGP metric.






5. Cisco IOS IP Service Level Agent feature. Provides for router-generated information useful for verifying network performance on a scheduled basis - and the associated reporting functions.






6. 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.






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






8. The content engine in a WCCP cluster - which determines how traffic will be distributed within the cluster.






9. AS number. 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.






10. A Cisco-proprietary LMI protocol - implemented in Cisco WAN switches and routers - through which the switch can inform the router about parameters for each VC - including CIR - Bc - and Be.






11. A set of parameters for CBAC to perform in its traffic inspection process.






12. Jargon referring to the minimum value to which adaptive shaping will lower the shaping rate.






13. Virtual circuit.






14. 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.






15. An FRF standard for Frame Relay-to-ATM Service Interworking in which both DTEs use Frame Relay - with ATM in between.






16. Ethernet MAC address that represents a single NIC or interface.






17. 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.






18. The destination VLAN for an RSPAN session.






19. Jargon referring to any queue that receives priority service - often used for queues in an LLQ configuration that have the priority command configured.






20. 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.






21. When subnetting a class A - B - or C address - the subnet for which all subnet bits are binary 0.






22. 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.






23. Provider edge.






24. A protection against problems caused by unidirectional links between two switches. Uses messaging between switches to detect the loop - err-disabling the port when the link is unidirectional.






25. Committed Burst.






26. A type of logic for how a router uses a default route. A convention for discussing and thinking about IP addresses by which class A - B - and C default network prefixes (of 8 - 16 - and 24 bits - respectively) are considered.






27. In OSPF - a number assigned to each LSA - ranging from 0x80000001 and wrapping back around to 0x7FFFFFFF - which is used to determine which LSA is most recent.






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






29. Time-division multiplexing.






30. DCE devices are one of two devices on either end of a communications circuit - specifically the device with more control over the communications. Frame Relay switches are DCE devices. DCEs are also known as data circuit-terminating equipment (DTE).






31. Multilayer Switching.






32. In BGP - either external BGP (eBGP) - confederation eBGP - or internal BGP (iBGP). The term refers to a peer connection - and whether the peers are in different ASs (eBGP) - different confederation sub-ASs (confederation eBGP) - or in the same AS (iB






33. 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.






34. A communication protocol between hosts and a multicast router by which routers learn of which multicast groups' packets need to be forwarded onto a LAN.






35. A routing protocol feature for which the routing protocol sends routing updates immediately upon hearing about a changed route - even though it may normally only send updates on a regular update interval.






36. The specific frequency subband on which the radio card or access point is operating. The RF channel is set in the access point or ad hoc stations.






37. A category used by a policer to classify packets relative to the traffic contract. The bit rate implied by all conforming packets is within the traffic contract.






38. Cisco Express Forwarding.






39. 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.






40. Dynamic Host Configuration Protocol.






41. Shaped round-robin.






42. A mechanism in which VLAN information can extend over another set of 802.1Q trunks by tunneling the original 802.1Q traffic with another 802.1Q tag. It allows a service provider to support transparent VLAN services with multiple customers - even if t






43. The rate at which a policer limits the bits exiting or entering the policer.






44. Extended Superframe.






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






46. The process of running the SPF algorithm against the LSDB - with the result being the determination of the current best route(s) to each subnet.






47. With some routing protocols - the time period between successive Hello messages.






48. A bit in the LAPF Frame Relay header that - when set to 1 - implies that the frame has experienced congestion.






49. The initial 802.11 common key encryption mechanism; vulnerable to hackers.






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