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






2. An EIGRP message that is used by neighbors to reply to a query. Reply messages require an Ack.






3. Multilayer Switching.






4. 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.






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






6. A method of Link Fragmentation and Interleaving (LFI) over interfaces that natively use Frame Relay encapsulation. The routers first build MLP-style PPP headers - which are then encapsulated inside a Frame Relay header. The PPP headers are then used






7. Operation - Administration - and Maintenance.






8. Authentication - authorization - and accounting.






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






10. Layer 2 payload compression.






11. 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.






12. A message that each host sends - either in response to a router Query message or on its own - to all multicast groups for which it would like to receive multicast traffic.






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






14. In TCP - a TCP host sets the TCP header's Window field to the number of bytes it allows the other host to send before requiring an acknowledgement. In effect - the receiving host - by stating a particular window size - grants the sending host the rig

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15. Software-based collection and reporting tool for data reported by NetFlow.






16. A mapping between each DSCP value and a corresponding CoS value - often used in Cisco LAN switches when performing classification for egress queuing.






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






18. Point-to-Point Protocol.






19. The Lempel Ziv STAC compression algorithm is used in Frame Relay networks to define dynamic dictionary entries that list a binary string from the compressed data and an associated smaller string that represents it during transmission






20. Data Carrier Detect.






21. A CBWFQ and LLQ term referring to the bandwidth on an interface that is neither reserved nor allocated via a priority command.






22. A Cisco-proprietary messaging protocol implemented in WAN switches that can be used to signal network status - including congestion - independent of end-user frames and cells.






23. A term referring to the processes and bits in the data stream used to manage the Telco TDM hierarchy.






24. Extended Superframe.






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






26. The common set of IOS configuration commands that is used with each QoS feature whose name begins with "Class-Based."






27. The process of forwarding packets through a router. Also called IP forwarding.






28. The most recent standardized set of generic SNMP MIB variables - defined in RFC 1213 and updated in RFCs 2011 through 2013.






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






30. Network Layer Protocol ID is a field in the RFC 2427 header that is used as a Protocol Type field in order to identify the type of Layer 3 packet encapsulated inside a Frame Relay frame.






31. In IPv6 - the Neighbor Discovery message used by an IPv6 node to send information about itself to its neighbors.






32. Virtual Router Redundancy Protocol.






33. 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






34. Link-State Refresh. A timer that determines how often the originating router should reflood an LSA - even if no changes have occurred to the LSA.






35. Expedited Forwarding.






36. 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






37. Cisco Group Management Protocol.






38. With routing protocols - the measurement of favorability that determines which entry will be installed in a routing table if more than one router is advertising that exact network and mask.






39. An MPLS LSR that can forward and receive both labeled and unlabeled packets.






40. A term referring to the process of applying the Message Digest 5 (MD5) algorithm to a string - resulting in another value. The original string cannot be easily computed even when the hash is known - making this process a strong method for storing pas






41. Ethernet feature in which a NIC or Ethernet port can both transmit and receive at the same instant in time. It can be used only when there is no possibility of collisions. Loopback circuitry on NIC cards is disabled to use full duplex.






42. With OSPF - the encapsulation of OSPF messages inside IP - to a router with which no common subnet is shared - for the purpose of either mending partitioned areas or providing a connection from some remote area to the backbone area.






43. Policing in which a single rate is metered - and packets are placed into one of two categories (conform or exceed).






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






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






46. Protocol Independent Multicast dense-mode routing protocol.






47. The first 48 bits of an IPv6 global address - used for efficient route aggregation.






48. Message Digest 5.






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






50. Time-division multiplexing.







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