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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. With EIGRP - a purposefully slowly changing measurement of round-trip time between neighbors - from which the EIGRP RTO is calculated.






2. Feasible distance.






3. Router Advertisement.






4. An attack similar to a smurf attack - but using packets for the UDP Echo application instead of ICMP.






5. Designed to solve the problems of multicast duplication and multicast routing loops. For every multicast packet received - a multicast router examines its source IP address - consults its unicast routing table - determines which interface it would us






6. Committed information rate.






7. Wi-Fi Protected Access. A security standard that includes both TKIP and AES and was ratified by the Wi-Fi Alliance.






8. A method for how a TCP sender grows its calculated CWND variable - thereby growing the allowed window for the connection. Congestion Avoidance grows CWND linearly.






9. The innermost MPLS header in an packet traversing an MPLS VPN - with the label value identifying the forwarding details for the egress PE's VRF associated with that VPN.






10. The term referring to a group of iBGP routers in a confederation - with the group members being assigned a hidden ASN for the purposes of loop avoidance.






11. 64 bits at the end of an IPv6 global address - used to uniquely identify each host in a subnet.






12. A type of logic for how a router uses a default route. When a default route exists - and the class A - B - or C network for the destination IP address does not exist in the routing table - the default route is used. If any part of that classful netwo






13. Regeneration of the Layer 2 encapsulation removed from frames forwarded in a SPAN session.






14. Used by RRs to denote the RID of the iBGP neighbor that injected the NLRI into the AS.






15. Multicast Open Shortest Path First.






16. A configuration tool in Cisco IOS that allows basic programming logic to be applied to a set of items. Often used for decisions about what routes to redistribute - and for setting particular characteristics of those routes






17. Direct sequence spread spectrum.






18. The mandatory contention-based 802.11 access protocol that is also referred to as CSMA/CA.






19. EIGRP (and IGRP) allows for the use of bandwidth - load - delay - MTU - and link reliability; the K values refer to an integer constant that includes these five possible metric components. Only bandwidth and delay are used by default - to minimize re






20. On a serial cable - the pin lead set by the DCE to imply a working link.






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






22. Copper cable with RJ-45 connectors in which the wire at pin 1 on one end is connected to pin 1 on the other end; the wire at pin 2 is connected to pin 2 on the other end; and so on.






23. Reverse ARP.






24. 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.






25. Spanning Tree Protocol.






26. Defines a particular behavior for FTP regarding the establishment of TCP data connections. In passive mode - an FTP server uses the FTP PORT command - over the FTP control connection - to tell the FTP client the port on which the server will be liste






27. A NAT term describing an IP address representing a host that resides outside the enterprise network - with the address being used in packets inside the enterprise network.






28. Time-division multiplexing.






29. A BGP term referring to an IP prefix and prefix length.






30. A queuing scheduler's logic by which - if a particular queue has packets in it - those packets always get serviced next.






31. The operating mode of shaped round-robin that provides a low-latency queue with policing.






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






33. 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






34. A single instance of STP that is applied to multiple VLANs - typically when using the 802.1Q trunking standard.






35. 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






36. A prestandard (at the time of publication) wireless LAN physical layer that offers data rates in the hundreds of megabits per second.






37. Cisco IOS router feature by which a route map determines how to forward a packet - typically based on information in the packet other than the destination IP address.






38. A Cisco switch feature that permits limiting traffic arriving at switch ports by percentage or absolute bandwidth. Separate thresholds are available per port for unicast - multicast - and broadcast traffic.






39. An address type in IPv6 networks that is used only on the local link and never beyond that scope.






40. The MD5-encoded password defined by the enable secret command.






41. Controls the distribution of multicast traffic by checking the TTL values configured on the interfaces. It forwards the multicast packet only on those interfaces whose configured TTL value is less than or equal to the TTL value of the multicast packe






42. Maximum transmission unit.






43. The first 4 bits of the first octet must be 1110. The last 28 bits are unstructured.






44. Enhances RP redundancy by providing a method for RPs to exchange multicast source information - even between multicast domains.






45. An ITU standard Frame Relay header - including the DLCI - DE - FECN - and BECN bits in the LAPF header - and a frame check in the LAPF trailer.






46. A generic term that refers to the data structure used by a layer in a layered network architecture when sending data.






47. The multicast addresses assigned by IANA.






48. A process used in routers that are encrypting traffic to permit egress QoS actions to be taken on traffic that is being encrypted on that router. QoS pre-classification keeps a copy of each packet to be encrypted in memory long enough to take the app






49. Distance Vector Multicast Routing Protocol.






50. In switch port security - the process whereby the switch dynamically learns the MAC address(es) of the device(s) connected to a switch port - and then adds those addresses to the running configuration as allowed MAC addresses for port security.