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. A component that interfaces with a phone using IP and provides connections to the Public Switched Telephone Network (PSTN).






2. A generic term that refers to the data structure used by a layer in a layered network architecture when sending data.






3. Protocol data unit.






4. In IPv6 - a Router Advertisement message used by an IPv6 router to send information about itself to nodes and other routers connected to that router.






5. A queuing scheduler's logic by which - if a particular queue has packets in it - those packets always get serviced next.






6. A Cisco router feature in which the router works to prevent SYN attacks either by monitoring TCP connections flowing through the router - or by actively terminating TCP connection until the TCP connection is established and then knitting the client-s






7. A characterization of a BGP path attribute in which all BGP implementations must support and understand the attribute (well known) - but BGP Updates can either include the attribute or not depending on whether a related feature has been configured (d






8. Excess Burst.






9. The process of sending an infinite-metric route in routing updates when that route fails.






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






11. PIM-DM is a method of routing multicast packets that depends on a flood-and-prune approach. PIM Dense Mode gets its name from the assumption that there are many receivers of a particular multicast group - close together (from a network perspective).






12. Also called VLAN trunking - a method (using either the Cisco ISL protocol or the IEEE 802.1Q protocol) to support carrying traffic between switches for multiple VLANs that have members on more than one switch.






13. The portion of PPP focused on supporting the CDP protocol.






14. An interface on a Cisco IOS-based switch that is treated as if it were an interface on a switch.






15. Uses Modular QoS CLI to control the amount and type of traffic handled by the router or switch control plane. Class maps identify traffic types - and then a service policy applied to the device control plane sets actions for each type of traffic.






16. Feasible distance.






17. A Cisco switch feature that allows separation of ports as if they were in separate VLANs - while allowing the use of a single IP subnet for all ports.






18. A wireless LAN that includes the use of access points. Infrastructure mode connects wireless users to a wired network and allows wireless users to roam throughout a facility between different access points. All 802.11 data frames in an infrastructure






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






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






21. Timer An STP timer that dictates how long a port should stay in the listening state and the learning state.






22. Differentiated Services.






23. A set of all devices for which any frame sent by one of the devices would collide with any frames transmitted at the same time by any of the other devices in the set.






24. With a routing update - or routing table entry - the portion of a route that defines the next router to which a packet should be sent to reach the destination subnet. With routing protocols - the Next Hop field may define a router other than the rout






25. An SPF calculation for which a router does not need to run SPF for any LSAs inside its area - but instead runs a very simple algorithm for changes to LSAs outside its own area.






26. Defined in RFC 1631 - a method of translating IP addresses in headers with the goal of allowing multiple hosts to share single public IP addresses - thereby reducing IPv4 public address depletion.






27. With EIGRP - a purposefully slowly changing measurement of round-trip time between neighbors - from which the EIGRP RTO is calculated.






28. Inter-Switch Link.






29. An administrative setting - included in Hellos - that is the first criteria for electing a DR. The highest priority wins - with values from 1-255 - with priority 0 meaning a router cannot become DR or BDR.






30. With OSPF - the timer used to determine when a neighboring router has failed - based on a router not receiving any OSPF messages - including Hellos - in this timer period.






31. A group of devices on one or more LANs that are configured (using management software) so that they can communicate as if they were attached to the same wire - when - in fact - they are located on a number of different LAN segments. Because VLANs are






32. Another name for Superframe.






33. A switch feature that limits the number of allowed MAC addresses on a port - with optional limits based on the actual values of the MAC addresses.






34. An EIGRP message that is used to ask neighboring routers to verify their route to a particular subnet. Query messages require an Ack.






35. Spanning Tree Protocol.






36. 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.






37. An interface on a Cisco IOS-based switch that is treated as if it were an interface on a router.






38. 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






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






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






41. The underlying algorithms associated with RIP.






42. Alternate Mark Inversion. A serial-line encoding standard that sends alternating positive and negative 3-volt signals for binary 1 - and no signal (0 V) for binary 0.






43. A single instance of STP that is applied to multiple VLANs - typically when using the 802.1Q trunking standard.






44. Request-to-send/clear-to-send.






45. Smoothed Round-Trip Time.






46. Point-to-Point Protocol over Ethernet. A convention often used as the data link protocol over Cable in which Ethernet is used as the data link protocol - but with PPP being encapsulated inside Ethernet. The combination gives the data link features of






47. Provider edge.






48. Virtual LAN.






49. A router that is not an ABR or ASBR in that all of its interfaces connect to only a single OSPF area.






50. Penultimate hop popping.