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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 event in which a new packet arrives - needing to be placed into a queue - and the queue is full






2. An EIGRP message that informs neighbors about routing information. Update messages require an Ack.






3. Defines a particular behavior for FTP regarding the establishment of data TCP connections. In active mode - the FTP client uses the FTP PORT command - over the FTP control connection - to tell the FTP server the port on which the client should be lis






4. An IPv6 address format used for publicly registered IPv6 addresses.






5. Measured Round-Trip Time.






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






7. In MPLS - a term used to define a label that an LSR allocates and then advertises to neighboring routers. The label is considered "local" on the router that allocates and advertises the label.






8. Edge LSR.






9. A type of spread spectrum that spreads RF signals over the frequency spectrum by representing each data bit by a longer code. 802.11b specifies the use of DSSS.






10. Aka receiver's advertised window.






11. The IPv6 protocol used for the discovery of which hosts are listening for which multicast IP addresses for IPv6.






12. 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






13. Database Description.






14. Part of the Cisco IOS Firewall feature set - CBAC inspects traffic using information in the higher-layer protocols being carried to decide whether to open the firewall to specific inbound traffic. CBAC supports both UDP and TCP and multiple higher-la






15. An MPLS VPN term referring to an LSR that has no direct customer connections - meaning that the P router does not need any visibility into the VPN customer's IP address space.






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






17. Alarm Indication Signal. With T1s - the practice of sending all binary 1s on the line in reaction to problems - to provide signal transitions and allow recovery of synchronization and framing.






18. A method of applying a mathematical formula - with input including a private key - the message contents - and sometimes a shared text string - with the resulting digest being included with the message. The sender and the receiver perform the same mat






19. Shaped round-robin.






20. Instead of advertising all routes out a particular interface - the routing protocol omits the routes whose outgoing interface field matches the interface out which the update would be sent.






21. Data Set Ready.






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






23. When multiple routers are connected to a subnet - only one should be sending IGMP queries. It is called a querier. IGMPv1 does not have any rules for electing a querier. In IGMPv2 and IGMPv3 - a router with the lowest interface IP address on the subn






24. Each 802.11 station passively monitors each RF channel for a specific amount of time and listens for beacons. Stations use the signal strengths of found beacons to determine the access point or ad hoc network with which to attempt association.






25. An NTP mode in which two or more NTP servers mutually synchronize their clocks.






26. A router that should either permanently or temporarily not be used as a transit router. Can wait a certain time after OSPF process start - or after BGP notifies OSPF that BGP has converged - before ceasing to be a stub router.






27. Removing unwanted VLANs from a Layer 2 path.






28. In the context of SNMP - the Trap command is sent by an SNMP agent - to a manager - when the agent wants to send unsolicited information to the manager. Trap is not followed by a Response message from the receiving SNMP manager.






29. The protocol used by content engines to manage traffic flow between routers configured for WCCP and between content engines. WCCP takes advantage of the fact that many web pages (and other content) are regularly accessed by users in a given network.






30. Network Based Application Recognition.






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






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






33. With shaping - the number of bits allowed to be sent every Tc. Also defines the size of the token bucket when Be = 0.






34. Border Gateway Protocol.






35. A type of logic for how a router uses a default route. When a default route exists - and no more specific match is made between the destination of the packet and the routing table - the default route is used.






36. A method for how a TCP sender grows its calculated CWND variable - thereby growing the allowed window for the connection. Slow Start grows CWND at an exponential rate.






37. Voice over Frame Relay.






38. The single port on each nonroot switch upon which the best Hello BPDU is received.






39. Smoothed Round-Trip Time.






40. In the context of SNMP - the Set command is sent by an SNMP manager - to an agent - requesting that the agent set a single identified variable to the stated value. The main purpose is to allow remote configuration and remote operation - such as shutt






41. Cisco Wireless LAN Solution Engine.






42. A reserved value for the BGP COMMUNITY path attribute that implies that the route should not be advertised outside the local confederation sub-AS.






43. 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.






44. Mark probability denominator.






45. A reserved value for the BGP COMMUNITY path attribute that implies that the route should not be advertised outside the local AS.






46. Single-bit fields in the TCP header. For example - the TCP SYN and ACK code bits are used during connection establishment.






47. A method of collecting traffic received on a switch port or a VLAN and sending it to specific destination ports on the same switch.






48. A neighbor state that signifies the other router has reached neighbor status - having passed the parameter check.






49. Label Distribution Protocol.






50. Another term for Port Address Translation. See PAT.