CCIE Vocab
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CCIE Vocab
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25 Questions

1. Extensible Authentication Protocol.

2. An effort to reduce the query scope with EIGRP - using route summarization or EIGRP stub routers.

3. A BGP message that includes withdrawn routes - path attributes - and NLRI.

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

5. Gateway Load Balancing Protocol.

6. VLAN Trunking Protocol.

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

8. 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.

9. Prefix list.

10. 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.

11. A multicast routing protocol that forwards the multicast traffic only when requested by a downstream router.

12. The original standardized set of generic SNMP MIB variables - defined in RFC 1158.

13. A switch feature in which the switch examines DHCP messages and - for untrusted ports - filters all messages typically sent by servers and inappropriate messages sent by clients. It also builds a DHCP snooping binding table that is used by DAI and IP

14. A strategy for subnetting a classful network for which all masks/prefixes are the same value for all subnets of that one classful network.

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

16. A 3-tuple consisting of an IP address - port number - and transport layer protocol. TCP connections exist between a pair of sockets.

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

18. Per-Hop Behavior.

19. An FRF standard for Frame Relay-to-ATM Service Interworking in which one DTE uses Frame Relay and one uses ATM.

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

21. Label Switch Router.

22. An exterior routing protocol designed to exchange prefix information between different autonomous systems. The information includes a rich set of characteristics called path attributes - which in turn allows for great flexibility regarding routing ch

23. Data terminal equipment.

24. A bit in the Frame Relay header that - when set to 1 - means that if a device needs to discard frames - it should discard the frames with DE 1 first.

25. In MPLS - the mapping of an IP prefix and a label - which is then advertised to neighbors using LDP.