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 configuration construct in which multiple neighbors' parameters can be configured as a group - thereby reducing the length of the configuration. Additionally - BGP performs routing policy logic against only one set of Updates for the entir






2. An 802.1d STP port state in which the port does not send or receive frames - except for listening for received Hello BPDUs.






3. A set of four hex digits listed in an IPv6 address. Each quartet is separated by a colon.






4. Class Selector.






5. 16 bits between the interface ID and global routing prefix in an IPv6 global address - used for subnet assignment inside an enterprise.






6. Link-State Acknowledgment.






7. The algorithm used by OSPF and IS-IS to compute routes based on the LSDB.






8. 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.






9. Any occurrence that could change a router's EIGRP topology table - including a received Update or Query - a failed interface - or the loss of a neighbor.






10. A NAT term describing an IP address representing a host that resides outside the enterprise network - with the address being used in packets inside the enterprise network.






11. 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






12. Data-link connection identifier.






13. A Cisco IOS configuration tool that can be used to match routing updates based on a base network address - a prefix - and a range of possible masks used inside the values defined by the base network address and prefix.






14. The condition in which a route has been in an EIGRP active state for longer than the router's Active timer.






15. 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.






16. A protection against problems caused by unidirectional links between two switches. Uses messaging between switches to detect the loop - err-disabling the port when the link is unidirectional.






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






18. A method of providing dynamically configured spoke-to-spoke VPN connectivity in a hub-and-spoke network that significantly reduces configuration required on the spoke routers compared to traditional IPsec VPN environments.






19. A T1 alarm state that occurs when the receiver can no longer consistently identify the frame.






20. WRED compares this setting to the average queue depth to decide whether packets should be discarded. All packets are discarded if the average queue depth rises above this maximum threshold.






21. In IPv6 - the Neighbor Discovery message used by an IPv6 node to request information about a neighbor or neighbors.






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






23. Enables a wireless client to securely roam between access points in the same subnet or between subnets with access point handoff times within 50 ms.






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






25. 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.






26. Hot Standby Router Protocol.






27. On a serial cable - the pin lead set by the DCE to tell the DTE that the DTE is allowed send data.






28. Time Interval.






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






30. Inside telcos' original TDM hierarchy - a unit that combines multiple DS1s into a single channel






31. A field within a route entry in a routing update - used to associate a generic number with the route. It is used when passing routes between routing protocols - allowing an intermediate routing protocol to pass information about a route that is not n






32. Virtual Routing and Forwarding table.






33. Ethernet MAC address that represents a single NIC or interface.






34. The characterization of how far EIGRP Query messages flow away from the router that first notices a failed route and goes active for a particular subnet.






35. A 3-bit field in the first 3 bits of the ToS byte in the IP header - used for QoS marking.






36. 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






37. Network Based Application Recognition.






38. Cisco-proprietary STP feature in which an access layer switch is configured to be unlikely to become Root or to become a transit switch. Also - convergence upon the loss of the switch's Root Port takes place in a few seconds.






39. A 3-bit field in an 802.1Q header used for marking frames.






40. When subnetting a class A - B - or C address - the subnet for which all subnet bits are binary 1.






41. Jargon used to refer to the second of two buckets in the dual token bucket model; its size is Be.






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






43. A Cisco switch feature that permits limiting traffic arriving at switch ports by percentage or absolute bandwidth. Separate thresholds are available per port for unicast - multicast - and broadcast traffic.






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






45. Digital Signal Level 3.






46. UniDirectional Link Detection.






47. Rapid Spanning Tree Protocol.






48. A predefined VC. A PVC can be equated to a leased line in concept.






49. Time-division multiplexing.






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