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CCIE Vocab

Instructions:
  • Answer 50 questions in 15 minutes.
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  • Match each statement with the correct term.
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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 individual line in an ACL.






2. A type of OSPF NSSA area for which neither external (type 5) LSAs are introduced - nor type 3 summary LSAs; instead - the ABRs originate and inject default routes into the area. External routes can be injected into a totally NSSA area.






3. Protocol data unit.






4. The one VLAN on an 802.1Q trunk for which the endpoints do not add the 4-byte 802.1Q tag when transmitting frames in that VLAN.






5. Forward Explicit Congestion Notification.






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






7. In shaping and policing - commonly used to refer to the shaping or policing rate. For WAN services - a common reference to the bit rate defined in the WAN service business contract for each VC.






8. A BGP term referring to an IP prefix and prefix length.






9. An integer setting for EIGRP and IGRP. Any FS route whose metric is less than this variance multiplier times the successor's metric is added to the routing table - within the restrictions of the maximum-paths command.






10. The range 233.0.0.0 through 233.255.255.255 that IANA has reserved (RFC 2770) on an experimental basis. It can be used by anyone who owns a registered autonomous system number to create 256 global multicast addresses.






11. 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.






12. A router that is not an ABR or ASBR in that all of its interfaces connect to only a single OSPF area.






13. A type of OSPF stub area for which neither external (type 5) LSAs are introduced - nor type 3 summary LSAs; instead - the ABRs originate and inject default routes into the area. External routes cannot be injected into a totally stubby area.






14. Defined in RFCs 1517-1520 - a scheme to help reduce Internet routing table sizes by administratively allocating large blocks of consecutive classful IP network numbers to ISPs for use in different global geographies. CIDR results in large blocks of n






15. Provider router.






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






17. 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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18. Aka minimum CIR.






19. 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.






20. A convention for IP addresses in which class A - B - and C default network prefixes (of 8 - 16 - and 24 bits - respectively) are ignored.






21. The two computers use a protocol with which to communicate with the same layer on another computer. The protocol defined by each layer uses a header that is transmitted between the computers to communicate what each computer wants to do.






22. Extended Superframe.






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






24. An NTP client that assumes that a server will send NTP broadcasts - removing the requirement for the client to have the NTP server's IP address preconfigured.






25. Quantum value.






26. A standard (RFC 951) protocol by which a LAN-attached host can dynamically broadcast a request for a server to assign it an IP address - along with other configuration settings - including a subnet mask and default gateway IP address.






27. Provides dynamic inspection of traffic as it traverses the router. It uses Context-Based Access Control (CBAC) to look deeper into a packet than an access list can. It tracks outbound traffic and dynamically allows in responses to that traffic.






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






29. An address type in IPv6 networks that is used only on the local link and never beyond that scope.






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






31. Forwarding Equivalence Class.






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






33. A Cisco-proprietary STP implementation - created many years before IEEE 802.1s and 802.1w - that speeds convergence and allows for one STP instance for each VLAN.






34. 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






35. An IP variable that defines the largest size allowed in an IP packet - including the IP header. IP hosts must support an MTU of at least 576 bytes.






36. A type of logic for how a router uses a default route. When a default route exists - and the class A - B - or C network for the destination IP address does not exist in the routing table - the default route is used. If any part of that classful netwo






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






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






39. VLAN Trunking Protocol.






40. The destination VLAN for an RSPAN session.






41. An Internet standard (RFC 1305) that defines the messages and modes used for IP hosts to synchronize their time-of-day clocks.






42. Aka receiver's advertised window.






43. The process of taking the IP and TCP headers of a packet - compressing them - and then uncompressing them on the receiving router.






44. Class-Based Marking.






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






46. An 802.1w RSTP port state in which the port is an alternative Designated Port on some LAN segment.






47. Sent by a PIM router to its upstream router to either request that the upstream router forward the group traffic or stop forwarding the group traffic that is currently being forwarded. If a PIM router wants to start receiving the group traffic - it l






48. A Cisco IOS queuing tool most notable for its scheduler - which always services the high-priority queue over all other queues.






49. 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.






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







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