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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 portion of PPP focused on negotiating IP features






2. A packet-scheduling algorithm used in Cisco switches that provides similar behavior to CBWFQ in shared mode and polices in shaped mode.






3. 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.






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






5. The number of bytes in a queue that are removed per cycle in MDRR. Similar to byte count in the custom queuing (CQ) scheduler.






6. Typically used by protocols that perform flow control (like TCP) - a TCP window is the number of bytes that a sender can send before it must pause and wait for an acknowledgement of some of the yet-unacknowledged data.






7. With EIGRP - a router sharing the same primary subnet - with which Hellos are exchanged - parameters match - and with which routes can be exchanged.






8. An enhanced version of T1 framing - as compared with the earlier Superframe (D4) standard.






9. With EIGRP - the metric (distance) of a route as reported by a neighboring router.






10. A Cisco IOS feature that performs deep packet inspection to classify packets based on application layer information.






11. In IP routing - a term referring to the building of IP routing tables by IP routing protocols.






12. A method used by an IPv6 host to determine its own IP address - without DHCPv6 - by using NDP and the modified EUI-64 address format. See also stateful autoconfiguration.






13. 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






14. An 802.1d STP port state in which the port sends and receives frames.






15. A WFQ term referring to its drop logic - which is similar to tail-drop behavior.






16. A term used with Cisco LAN switches - referring to a queue treated with strict-priority scheduling.






17. Forward Explicit Congestion Notification.






18. Inter-Switch Link.






19. Advanced Encryption Standard A superior encryption mechanism that is part of the 802.11i standard and has much stronger security than TKIP.






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






21. A router that is allowed to receive a packet from an OSPF router and then forward the packet to another OSPF router.






22. An Internet standard (RFC 1305) that defines the messages and modes used for IP hosts to synchronize their time-of-day clocks.






23. 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.






24. In the context of SNMP - the Get command is sent by an SNMP manager - to an agent - requesting the value of a single MIB variable identified in the request. The Get request identifies the exact variable whose value the manager wants to retrieve. Intr






25. Assured Forwarding. A set of DiffServ PHBs that defines 12 DSCP values - with four queuing classes and three drop probabilities within each queuing class.






26. The same thing as TCP code bits. See TCP code bits.






27. Inside telcos' original TDM hierarchy - a unit that combines multiple DS0s into a single channel






28. The IP address used by hosts as the default gateway in a VRRP configuration. This address is shared by two or more VRRP routers - much as HSRP works.






29. 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.






30. 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






31. Link-state database.






32. Alternate name for the SPF algorithm - named for its inventor - Edsger W. Dijkstra.






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






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






35. A designated router that is directly connected with a source of the multicast group.






36. As defined in RFCs 2765 and 2766 - a method of translating between IPv4 and IPv6 that removes the need for hosts to run dual protocol stacks. NAT-PT is an alternative to tunneling IPv6 over an IPv4 network - or vice versa.






37. 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.






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. In MPLS - a term used to define a label that an LSR allocates and then advertises to neighboring routers. The label is considered "local" on the router that allocates and advertises the label.






40. A BGP feature that overcomes the requirement of a full mesh of iBGP peers inside a single AS by separating the AS into multiple sub-autonomous systems.






41. Cisco-proprietary STP feature in which switches use messaging to confirm the loss of Hello BPDUs in a switch's Root Port - to avoid having to wait for maxage to expire - resulting in faster convergence.






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






43. The combination of PVST+ and Rapid Spanning Tree. It provides subsecond convergence time and is compatible with PVST+ and MSTP.






44. A problem that occurs when an AS does not run BGP on all routers - with synchronization disabled. The routers running BGP may believe they have working routes to reach a prefix - and forward packets to internal routers that do not run BGP and do not






45. Link Access Procedure for Frame-Mode Bearer Services.






46. 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.






47. In IPv6 - the Neighbor Discovery message used by an IPv6 node to request information about a neighbor or neighbors.






48. A Cisco switch feature that allows separation of ports as if they were in separate VLANs - while allowing the use of a single IP subnet for all ports.






49. With RIP - the regular interval at which updates are sent. Each interface uses an independent timer - defaulting to 30 seconds.






50. 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.