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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. 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.






2. A TCP variable that defines the largest number of bytes allowed in a TCP segment's Data field. The calculation does not include the TCP header. With a typical IP MTU of 1500 bytes - the resulting default MSS would be 1460. TCP hosts must support an M






3. Protocol Independent Multicast dense-mode routing protocol.






4. 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.






5. 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.






6. In MQC and CB Policing - a configuration style by which - for one category of packets (conform - exceed - or violate) - more than one marking action is defined for a single category. For example - marking DSCP and DE.






7. Defined in RFC 2289 - a mechanism by which a shared key and a secret key together feed into a hash algorithm - creating a password that is transmitted over a network. Because the shared key is not reused - the hash value is only valid for that indivi






8. A router that should not be used to forward packets between other routers. Other routers will not send Query messages to a stub router.






9. Port Address Translation.






10. In IPv6 - an address used in the Neighbor Discovery (ND) process. The format for these addresses is FF02::1:FF00:0000/104 - and each IPv6 host must join the corresponding group for each of its unicast and anycast addresses.






11. Network Based Application Recognition.






12. A multicast routing protocol that operates in dense mode and depends on the OSPF unicast routing protocol to perform its multicast functions.






13. A Cisco IOS configuration tool for routing protocols by which routing updates may be filtered.






14. From one multicast router's perspective - the upstream router is another router that has just forwarded a multicast packet to that router.






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






16. In the context of SNMP - the Response command is sent by an SNMP agent - back to a manager - in response to any of the three types of Get requests - or in response to a Set request. It is also used by a manager in response to a received Inform comman






17. 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






18. A type of OSPF stub area that - unlike stub areas - can inject external routes into the NSSA area.






19. A list of interspersed alphanumeric literals and metacharacters that are used to apply complex matching logic to alphanumeric strings. Often used for matching AS_PATHs in Cisco routers.






20. Not-so-stubby area.






21. A T1 alarm state that occurs when a device receives a Yellow Alarm signal. This typically means that the device on the other end of the line is in a Red Alarm state.






22. An 802.1d STP port state in which the port sends and receives frames.






23. Layer 2 payload compression.






24. A type of spread spectrum that spreads RF signals over the frequency spectrum by transmitting the signal at different frequencies according to a hopping pattern. One of the original 802.11 physical layers used FHSS to offer data rates of 1 and 2 Mbps






25. With private VLANs - a secondary VLAN in which the ports can send and receive frames only with promiscuous ports in the primary VLAN.






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






27. A NAT term describing the process of multiplexing TCP and UDP flows - based on port numbers - to a small number of public IP addresses. Also called NAT overloading.






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






29. A table inside a router that holds the path attributes and NLRI known by the BGP implementation on that router.






30. Maximum Segment Size.






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






32. CDP Control Protocol.






33. An FRF standard for Frame Relay-to-ATM Service Interworking in which one DTE uses Frame Relay and one uses ATM.






34. Modular QoS CLI.






35. 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.






36. In the PIM-SM design - the central distribution point to which the multicast traffic is first delivered from the source designated router.






37. The process of combining multiple synchronized input signals over a single medium by giving each signal its own time slot - and then breaking out those signals.






38. Used by RRs to denote the RID of the iBGP neighbor that injected the NLRI into the AS.






39. Auto-Rendezvous Point. Cisco-proprietary protocol that can be used to designate an RP and send RP-Announce messages that advertise its IP address and groups. Also - it can be used to designate a mapping agent that interprets what IP address RP is adv






40. An MPLS term describing designs in which one or more MPLS customer sites can be reached from multiple other VPNs.






41. An IPv6/IPv4 tunneling method that is designed for transporting IPv6 packets within a site where a native IPv6 infrastructures is not available.






42. In the context of SNMP - the GetNext command is sent by an SNMP manager - to an agent - requesting the value of a single MIB variable. The GetNext request identifies a variable for which the manager wants the variable name and value of the next MIB l






43. Used by a policer to classify packets relative to the traffic contract. These packets are considered to be above the traffic contract in all cases.






44. An STP timer that dictates the interval at which the Root switch generates and sends Hello BPDUs.






45. An NTP mode in which an NTP host does not adjust its clock - but in which it sends NTP messages to clients so that the clients can update their clocks based on the server's clock.






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






47. A type of logic for how a router uses a default route. A convention for discussing and thinking about IP addresses by which class A - B - and C default network prefixes (of 8 - 16 - and 24 bits - respectively) are considered.






48. When subnetting a class A - B - or C address - the subnet for which all subnet bits are binary 0.






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






50. Used by WRED to calculate the rate at which the average queue depth changes as compared with the current queue depth. The larger the number - the slower the change in the average queue depth.