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. Address Resolution Protocol. Defined in RFC 826 - a protocol used on LANs so that an IP host can discover the MAC address of another device that is using a particular IP address.






2. In shaping and policing - commonly used to refer to the shaping or policing rate. For WAN services - a common reference to the bit rate defined in the WAN service business contract for each VC.






3. 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.






4. A numeric value between 0 and 32 (inclusive) that defines the number of beginning bits in an IP address for which all IP addresses in the same group have the same value. Alternative: The number of binary 1s beginning a subnet mask - written as a deci






5. A term used with Cisco LAN switches - referring to a queue treated with strict-priority scheduling.






6. A type of OSPF stub area for which neither external (type 5) LSAs are introduced - nor type 3 summary LSAs; instead - the ABRs originate and inject default routes into the area. External routes cannot be injected into a totally stubby area.






7. A mechanism for conserving battery power in wireless stations. The access point buffers data frames destined to sleeping stations - which wake periodically to learn from information in the beacon frame whether or not data frames are waiting for trans






8. Backward Explicit Congestion Notification.






9. A set of rules by which BGP examines the details of multiple BGP routes for the same NLRI and chooses the single best BGP route to install in the local BGP table.






10. Burst With shaping and policing - the number of additional bits that may be sent after a period of relative inactivity.






11. 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.






12. Retransmission Timeout.






13. Local Management Interface.






14. A category used by a policer to classify packets relative to the traffic contract. With two-color policers - these packets are considered to be above the contract; for three-color - these packets are above the Bc setting - but within the Be setting.






15. Distance Vector Multicast Routing Protocol.






16. Copper cable with RJ-45 connectors in which a twisted pair at pins 1 -2 on the first end of the cable is connected to pins 3 -6 on the other end - with a second pair connected to pins 3 -6 on the first end and pins 1 -2 on the other end.






17. Cisco-proprietary VLAN trunking protocol.






18. Time to Live.






19. Wired Equivalent Privacy.






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






21. A wireless LAN that only includes wireless users and no access points. 802.11 data frames in an ad hoc network travel directly between wireless users.






22. Any routing protocol that uses the concept of using the SPF algorithm with an LSDB to compute routes.






23. Alternate name for the SPF algorithm - named for its inventor - Edsger W. Dijkstra.






24. 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.






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






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






27. The 32-bit number used to represent an OSPF router.






28. Cisco-proprietary STP feature in which a switch port monitors for incoming superior Hellos - and reacts to a superior Hello to prevent any switch connected to that port from becoming root.






29. 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






30. 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






31. A 3-bit field in an ISL header used for marking frames. Also - used generically to refer to either the ISL CoS field or the 802.1Q User Priority field.






32. Forward Explicit Congestion Notification.






33. 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.






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






35. 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.






36. Router Advertisement.






37. 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.






38. Digital Signal Level 3.






39. Jargon used by STP mostly when discussing the root election process; refers to a Hello with a lower bridge ID. Sometimes refers to a Hello with the same bridge ID as another - but with better values for the tiebreakers in the election process.






40. Autonomous System Boundary Router. An OSPF router that redistributes routes from some other source into OSPF.






41. Bootstrap Router.






42. The All OSPF DR Routers multicast IP address - listened for by DR and BDR routers.






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






44. In IPv6 DNS - the IPv6 equivalent of an IPv4 DNS A record.






45. The rate at which a policer limits the bits exiting or entering the policer.






46. The first 6 bits of the DS field - used for QoS marking.






47. For some encoding schemes - consecutive signals must use opposite polarity in an effort to reduce DC current. A BPV occurs when consecutive signals are of the same polarity.






48. Bipolar 8 Zero Substitution. A serial-line encoding standard that substitutes Bipolar Violations in a string of eight binary 0s to provide enough signal transitions to maintain synchronization.






49. A table used by CEF that holds information about adjacent IP hosts to which packets can be forwarded.






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