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. 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.






2. In MPLS - a term used to define a label that an LSR learned from a neighboring LSR.






3. In MPLS VPNs - an entity in a single router that provides a means to separate routes in different VPNs. The VRF includes per-VRF instances of routing protocols - a routing table - and an associated CEF FIB.






4. The MD5-encoded password defined by the enable secret command.






5. The list of entries learned by the switch DHCP snooping feature. The entries include the MAC address used as the device's DHCP client address - the assigned IP address - the VLAN - and the switch port on which the DHCP assignment messages flowed.






6. A specification for the 64-bit interface ID in an IPv6 address - composed of the first half of a MAC address - hex FFFE - and the last half of the MAC.






7. A tunneling protocol that can be used to encapsulate many different protocol types - including IPv4 - IPv6 - IPsec - and others - to transport them across a network.






8. Data terminal equipment.






9. A T1 alarm state that occurs when a device has detected a local LOF/LOS/AIS condition. The device in Red alarm state then sends a Yellow alarm signal.






10. An Internet standard serial data-link protocol - used on synchronous and asynchronous links - that provides data-link framing - link negotiation - Layer 3 interface features - and other functions.






11. An MPLS VPN term referring to a router at a customer site that does not implement MPLS.






12. With RIP - a per-route timer that increases until the router receives a routing update that confirms the route is still valid - upon which the timer is reset to 0. If the updates cease - the Invalid timer will grow - until reaching the timer setting






13. 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.






14. Dynamic Host Configuration Protocol.






15. An MPLS term referring to any device that can forward packets that have MPLS labels.






16. A standard (RFC 2131) protocol by which a host can dynamically broadcast a request for a server to assign to it an IP address - along with other configuration settings - including a subnet mask and default gateway IP address. DHCP provides a great de






17. Defined in IEEE 802.1s - a specification for multiple STP instances when using 802.1Q trunks






18. Temporal Key Integrity Protocol.






19. A technology that enables frequency reuse. Two variants exist: frequency hopping (FHSS) and direct sequence (DSSS). Both techniques spread the signal power over a relatively wide portion of the frequency spectrum over time - to reduce interference be






20. Digital Signal Level 3.






21. 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.






22. 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






23. 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.






24. Jargon referring to a policer action through which - instead of discarding an out-of-contract packet - the policer marks a different IPP or DSCP value - allowing the packet to continue on its way - but making the packet more likely to be discarded la






25. Three core security functions.






26. Message sent by a PIM-DM router to a downstream router when it receives a Graft message from the downstream router; sent using the unicast address of the downstream router.






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






28. Penultimate hop popping.






29. A type of AS_PATH segment consisting of an ordered list of ASNs through which the route has been advertised.






30. An 802.11 frame that access points or stations in ad hoc networks send periodically so that wireless stations can discover the presence of a wireless LAN and coordinate use of certain protocols - such as power-save mode.






31. A mechanism that counters collisions caused by hidden nodes. If enabled - the station or access point must first send an RTS frame and receive a CTS frame before sending each data frame.






32. Network Address Translation-Protocol Translation.






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






34. A set of parameters for CBAC to perform in its traffic inspection process.






35. 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.






36. Superframe






37. Weighted random early detection.






38. With EIGRP - a route that is not a successor route - but that meets the feasibility condition; can be used when the successor route fails - without causing loops.






39. A type of OSPF packet - used to communicate LSAs to another router.






40. An STP timer that dictates how long a switch should wait when it ceases to hear Hellos.






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






42. A security standard that includes both TKIP and AES and was ratified by the Wi-Fi Alliance.






43. Protocol Independent Multicast dense-mode routing protocol.






44. In IP routing - a term referring to the building of IP routing tables by IP routing protocols.






45. An MPLS VPN term referring to the more efficient choice of popping the outer label at the second-to-last (penultimate) LSR - which then prevents the egress PE from having to perform two LFIB lookups to forward the packet.






46. A router feature used when a router sees an ARP request searching for an IP host's MAC - when the router believes the IP host could not be on that LAN because the host is in another subnet. If the router has a route to reach the subnet where the ARP-






47. A term referring to the MQC class-map command and its related subcommands - which are used for classifying packets.






48. Refers to how a router views a BGP peer relationship - in which the peer is in the same AS.






49. Wired Equivalent Privacy.






50. Jargon referring to the minimum value to which adaptive shaping will lower the shaping rate.