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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. Custom queuing






2. With private VLANs - a secondary VLAN in which the ports can send and receive frames with each other - but not with ports in other secondary VLANS.






3. 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.






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






5. 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.






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






7. A term generally describing characteristics about BGP paths that are advertised in BGP Updates.






8. A router that should either permanently or temporarily not be used as a transit router. Can wait a certain time after OSPF process start - or after BGP notifies OSPF that BGP has converged - before ceasing to be a stub router.






9. A type of logic for how a router uses a default route. When a default route exists - and no more specific match is made between the destination of the packet and the routing table - the default route is used.






10. In PIM-SM - the path of the group traffic that flows from the RP to the routers that need the traffic. It is also called the root-path tree (RPT) - because it is rooted at the RP.






11. 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.






12. A method of obtaining an IPv6 address that uses DHCPv6. See also stateless autoconfiguration.






13. An FRTS configuration construct - configured with the map-class frame-relay global configuration command.






14. Prefix list.






15. The PDU used by a particular layer of a networking model - with x defining the layer.






16. A T1 alarm state that occurs when the receiver can no longer consistently identify the frame.






17. Layer x PDU.






18. With EIGRP - the route to each destination for which the metric is the lowest of all known routes to that network.






19. Shaped round-robin.






20. Defined in IEEE 802.1d - a protocol used on LAN bridges and switches to dynamically define a logical network topology that allows all devices to be reached - but prevents the formation of loops.






21. Any OSPF neighbor for which the database flooding process has completed.






22. The information maintained by a router for each multicast entry in its multicast routing table - such as incoming interface - outgoing interface list - Uptime timer - Expire timer - etc.






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






24. 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.






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






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






27. An 802.1w RSTP port state in which the port is an alternative Designated Port on some LAN segment.






28. Maximum Response Time.






29. 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






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






31. Differentiated Services Code Point.






32. A type of routing protocol convergence event in which the metric for a route increases slightly over time because of the advertisement of an invalid route.






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






34. A mapping between each DSCP value and a WRED threshold - often used in Cisco LAN switches when performing WRED.






35. In shaping and policing - the definition of parameters that together imply the allowed rate and bursts.






36. The OSPF data structure that describes topology information.






37. An IEEE standard that - when used with EAP - provides user authentication before their connected switch port allows the device to fully use the LAN.






38. Link-state database.






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






40. With RIP - a per-route timer that increases until the router receives a routing update that confirms the route is still valid - upon which the timer is reset to 0. If the updates cease - the Invalid timer will grow - until reaching the timer setting






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






42. 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.






43. In the context of SNMP - the Inform command is sent by an SNMP manager to communicate a set of variables - and their values - to another SNMP manager. The main purpose is to allow multiple managers to exchange MIB information - and work together - wi






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






45. With private VLANs - a port that can send and receive frames with all other ports in the private VLAN.






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






47. An optional contention-free 802.11 access protocol that requires the access point to poll wireless stations before they are able to send frames. Not commonly implemented.






48. A field in the IP header that is decremented at each pass through a Layer 3 forwarding device.






49. A standard (RFC 2131) protocol by which a host can dynamically broadcast a request for a server to assign to it an IP address - along with other configuration settings - including a subnet mask and default gateway IP address. DHCP provides a great de






50. Frame Relay Forum.