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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. Loss of Frame.






2. An optimized Layer 3 forwarding path through a router or switch. CEF optimizes routing table lookup by creating a special - easily searched tree structure based on the contents of the IP routing table. The forwarding information is called the Forward






3. 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






4. The process - defined by FRF.5 and FRF.8 - for combining ATM and FR technologies for an individual VC.






5. With routing protocols - the measurement of favorability that determines which entry will be installed in a routing table if more than one router is advertising that exact network and mask.






6. Low-latency queuing.






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






8. The combination of MPLS labels and links over which a packet will be forwarded over an MPLS network - from the point of ingress to the MPLS network to the point of egress.






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. Instead of advertising all routes out a particular interface - the routing protocol omits the routes whose outgoing interface field matches the interface out which the update would be sent.






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






12. A Cisco IOS configuration tool for routing protocols by which routing updates may be filtered.






13. A set of QoS RFCs that redefines the IP header's ToS byte - and suggests specific settings of the DSCP field and the implied QoS actions based on those settings.






14. A reserved value for the BGP COMMUNITY path attribute that implies that the route should not be advertised to any other peer.






15. A calculated TCP variable - used along with the TCP CWND variable - to dictate a TCP sender's behavior when it recognizes packet loss. As CWND grows after packet loss - the TCP sender increases CWND based on Slow Start rules - until CWND grows to be






16. Three core security functions.






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






18. A VC that is set up dynamically when needed. An SVC can be equated to a dial-on-demand connection in concept.






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






20. Cisco Express Forwarding.






21. Controls the distribution of multicast traffic for the private multicast address range 239.0.0.0 to 239.255.255.255 by configuring a filter and applying it on the interfaces.






22. Virtual Router Redundancy Protocol.






23. In IPv6 - an address used in the Neighbor Discovery (ND) process. The format for these addresses is FF02::1:FF00:0000/104 - and each IPv6 host must join the corresponding group for each of its unicast and anycast addresses.






24. Carrier sense multiple access with collision detection. A media-access mechanism where devices ready to transmit data first check the channel for a carrier. If no carrier is sensed for a specific period of time - a device can transmit. If two devices






25. A subset of a classful IP network - as defined by a subnet mask - which used to address IP hosts on the same Layer 2 network in much the same way as a classful network is used.






26. Ethernet feature in which a NIC or Ethernet port can only transmit or receive at the same instant in time - but not both. Half duplex is required when a possibility of collisions exists.






27. A characterization of a BGP path attribute in which BGP implementations are not required to support the attribute (optional) - and for which if a router receives a route with such an attribute - the router should remove the attribute before advertisi






28. Link-State Acknowledgment.






29. 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.






30. A term relating to Cisco LAN switch tail-drop logic - in which multiple tail-drop thresholds may be assigned based on CoS or DSCP - resulting in some frames being discarded more aggressively than others.






31. Link Control Protocol.






32. 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.






33. Allows the router to act as an inline IPS - doing deep packet inspection.






34. Defined in RFC 1293 - this protocol allows a Frame Relay-attached device to react to a received LMI "PVC up" message by announcing its Layer 3 addresses to the device on the other end of the PVC.






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






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






37. In the context of SNMP - the GetNext command is sent by an SNMP manager - to an agent - requesting the value of a single MIB variable. The GetNext request identifies a variable for which the manager wants the variable name and value of the next MIB l






38. An MPLS LSR that can forward and receive both labeled and unlabeled packets.






39. The range 233.0.0.0 through 233.255.255.255 that IANA has reserved (RFC 2770) on an experimental basis. It can be used by anyone who owns a registered autonomous system number to create 256 global multicast addresses.






40. A wireless LAN physical layer that operates at up to 54-Mbps data rates using OFDM in the 5-GHz band.






41. An enhanced version of WEP that is part of the 802.11i standard and has an automatic key-update mechanism that makes it much more secure than WEP. TKIP is not as strong as AES in terms of data protection.






42. 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.






43. Calculated measurement based on the actual queue depth and the previous average. Designed to allow WRED to adjust slowly to rapid changes of the actual queue depth.






44. Another name for Superframe.






45. An FRF standard for payload compression.






46. Password Authentication Protocol.






47. A 1-byte field in the IP header - originally defined by RFC 791 for QoS marking purposes.






48. Sent by a PIM router - by default every 30 seconds - on every interface on which PIM is configured to discover neighbors - establish adjacency - and maintain adjacency.






49. The most recent standardized set of generic SNMP MIB variables - defined in RFC 1213 and updated in RFCs 2011 through 2013.






50. A Cisco-proprietary feature. After a Cisco multicast router receives IGMP Join or Leave messages from hosts - it communicates to the connected Cisco switches - telling them which hosts (based on their unicast MAC addresses) have joined or left each m