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. Alarm Indication Signal. With T1s - the practice of sending all binary 1s on the line in reaction to problems - to provide signal transitions and allow recovery of synchronization and framing.






2. A term referring generically to ways in which a router or switch can determine whether a particular device or user should be allowed access.






3. A state for a route in an EIGRP topology table that indicates that the router believes that the route is stable - and it is not currently looking for any new routes to that subnet.






4. A type of OSPF packet used to discover neighbors - check for parameter agreement - and monitor the health of another router.






5. The range 232.0.0.0 through 232.255.255.255 that is allocated by IANA for SSM destination addresses and is reserved for use by source-specific applications and protocols.






6. Designed to solve the problems of multicast duplication and multicast routing loops. For every multicast packet received - a multicast router examines its source IP address - consults its unicast routing table - determines which interface it would us






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






8. Point-to-Point Protocol.






9. Committed information rate.






10. 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






11. Common Spanning Tree.






12. Defines a particular behavior for FTP regarding the establishment of data TCP connections. In active mode - the FTP client uses the FTP PORT command - over the FTP control connection - to tell the FTP server the port on which the client should be lis






13. A BGP ASN whose value is between 64 -512 and 65 -535. These values are not assigned for use on the Internet - and can be used for private purposes - typically either within confederations or by ISPs to hide the ASN used by some customers.






14. A BGP process by which a router reapplies routing policy configuration (route maps - filters - and the like) based on stored copies of sent and received BGP Updates.






15. A standard (RFC 951) protocol by which a LAN-attached host can dynamically broadcast a request for a server to assign it an IP address - along with other configuration settings - including a subnet mask and default gateway IP address.






16. Defined in RFC 2091 - the extensions define how RIP may send a full update once - and then send updates only when routes change - when an update is requested - or when a RIP interface changes state from down to up.






17. On a serial cable - the pin lead set by the DCE to imply a working link.






18. In BGP - a feature in which BGP routes cannot be considered to be a best route to reach an NLRI unless that same prefix exists in the router's IP routing table as learned via some IGP.






19. 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.






20. Similar to an appliance firewall - in that interfaces are placed into security zones. Traffic is allowed between interfaces in the same zone. You can apply policies to filter and control traffic between zones.






21. 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






22. The RMON function of sending a notification to an RMON collector or the console. Triggered by an RMON event.






23. The second most significant bit in the most significant byte of an Ethernet MAC address - a value of binary 0 implies that the address is a Universally Administered Address (UAA) (also known as Burned-In Address [BIA]) - and a value of binary 1 impli






24. A Cisco 12000 series router feature that combines the key features of LLQ and CQ to provide similar congestion-management features.






25. An MPLS term referring to the first of several labels when an MPLS-forwarded packet has multiple labels (a label stack).






26. The multicast addresses assigned by IANA.






27. Source-specific multicast.






28. Defined in RFCs 1517-1520 - a scheme to help reduce Internet routing table sizes by administratively allocating large blocks of consecutive classful IP network numbers to ISPs for use in different global geographies. CIDR results in large blocks of n






29. The multicast IP address 224.0.0.6 - listened for by DR and BDR routers.






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






31. Weighted random early detection.






32. From the perspective of one routing protocol - a route that was learned by using route redistribution.






33. UniDirectional Link Detection.






34. A component of the IOS IP SLA feature. An IP SLA responder is a router configured to respond to a particular IP SLA message initiated by another router - allowing the routers to work together to provide performance information including UDP jitter an






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






36. A name used for DS3 lines inside the North American TDM hierarchy.






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






38. A queue created by Cisco IOS as a result of the configuration of a queuing tool.






39. Forwarding Information Base.






40. The password required by the enable command. Also - this term may specifically refer to the password defined by the enable password command.






41. An integer setting for EIGRP and IGRP. Any FS route whose metric is less than this variance multiplier times the successor's metric is added to the routing table - within the restrictions of the maximum-paths command.






42. As defined in RFC 3623 - graceful restart allows for uninterrupted forwarding in the event that an OSPF router's OSPF routing process must restart. The router does this by first notifying the neighbor routers that the restart is about to occur; the n






43. Management Information Base.






44. An alternative software loaded into a Cisco router - used for basic IP connectivity; most useful when Flash memory is broken and you need IP connectivity to copy a new IOS image into Flash memory.






45. AutoQoS is a macro that creates and applies quality of service configurations based on Cisco best-practice recommendations.






46. With EIGRP - a timer started when a reliable (to be acknowledged) message is transmitted. For any neighbor(s) failing to respond in its RTO - the RTP protocol causes retransmission. RTO is calculated based on SRTT.






47. Loss of Signal. A T1 alarm state that occurs when the receiver has not received any pulses of either polarity for a defined time period.






48. Reported distance or Route Distinguisher.






49. An architecture and set of documents that defines Cisco's best recommendations for how to secure a network.






50. An FRF standard for payload compression.