Test your basic knowledge |

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. Maximum transmission unit.






2. An EIGRP message that informs neighbors about routing information. Update messages require an Ack.






3. In 802.1X - the computer that stores usernames/passwords and verifies that the correct values were submitted before authenticating the user.






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






5. An 802.1d STP port state in which the port has been administratively disabled.






6. A name used for DS1 lines inside the European TDM hierarchy.






7. An MPLS VPN term referring to an LSR that has no direct customer connections - meaning that the P router does not need any visibility into the VPN customer's IP address space.






8. A protocol - defined in RFC 2865 - that defines how to perform authentication between an authenticator (for example - a router) and an authentication server that holds a list of usernames and passwords.






9. A 48-bit address that is calculated from a Layer 3 multicast address by using 0x0100.5E as the multicast vendor code (OUI) for the first 24 bits - always binary 0 for the 25th bit - and copying the last 23 bits of the Layer 3 multicast address.






10. The router that will receive the group traffic when a multicast router forwards group traffic to another router.






11. Virtual circuit.






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






13. Sent by a PIM-DM or PIM-SM router when it receives a multicast packet for a group on a LAN interface that is in the outgoing interface list for the group; includes the administrative distance of the unicast routing protocol used to learn the network






14. Operates in dense mode and depends on its own unicast routing protocol that is similar to RIP to perform its multicast functions.






15. A Cisco IOS queuing tool most notable for its reservation of a minimum bandwidth for each queue.






16. A bit inside the Frame Relay header that - when set - implies that congestion occurred in the direction opposite (or backward) as compared with the direction of the frame.






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






18. IP multicast address range from 224.0.0.0 through 239.255.255.255.






19. A wireless LAN physical layer that is backward compatible with 802.11b and operates at up to 54-Mbps data rates using OFDM in the 2.4-GHz band.






20. Also known as triggered updates.






21. A routing protocol feature by which the routing update includes only routes that have changed - rather than include the entire set of routes.






22. Enhanced Local Management Interface.






23. The process of installing a multicast application; also referred to as launching an application.






24. An alternative software loaded into a Cisco router - used for low-level debugging and for password recovery.






25. A Cisco-proprietary BGP feature. The administrative weight can be assigned to each NLRI and path locally on a router - impacting the local router's choice of the best BGP routes. The value cannot be communicated to another router.






26. The condition in which a route has been in an EIGRP active state for longer than the router's Active timer.






27. A BGP peer connection between two routers inside the same ASN - but in different confederation sub-autonomous systems.






28. An Internet standard authentication protocol that uses clear-text passwords and a two-way handshake to perform authentication over a PPP link.






29. A BGP path attribute that is communicated throughout a single AS to signify which route of multiple possible routes is the best route to be taken when leaving that AS. A larger value is considered to be better.






30. Ethernet MAC address that represents all devices on the LAN.






31. 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






32. The process of taking a PDU from some other source and placing a header in front of the original PDU - and possibly a trailer behind it.






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






34. Service set identifier.






35. External BGP.






36. 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.






37. Discard Eligible.






38. Link Control Protocol.






39. A T1 alarm state that occurs when a device has detected a local LOF/LOS/AIS condition. The device in Red alarm state then sends a Yellow alarm signal.






40. A Cisco IOS interface software queue queuing strategy implemented automatically when using either form of Frame Relay fragmentation. The system then interleaves packets from the high-priority queue between fragments of the medium-priority queue.






41. A mapping between each DSCP value and a corresponding CoS value - often used in Cisco LAN switches when performing classification for egress queuing.






42. Inverse ARP.






43. Frame Relay Forum.






44. A Cisco-proprietary protocol used to dynamically negotiate whether the devices on an Ethernet segment want to form a trunk and - if so - which type (ISL or 802.1Q).






45. An MPLS VPN term referring to a router at a customer site that does not implement MPLS.






46. 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






47. Used by WRED to calculate the rate at which the average queue depth changes as compared with the current queue depth. The larger the number - the slower the change in the average queue depth.






48. Often used synonymously with neighbor - but with emphasis on the fact that all required parameters match - allowing routing updates to be exchanged between the routers.






49. A commonly used name for Multi-VRF CE.






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