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






2. A Cisco router feature in which the router works to prevent SYN attacks either by monitoring TCP connections flowing through the router - or by actively terminating TCP connection until the TCP connection is established and then knitting the client-s






3. An optional transitive BGP path attribute used to store 32-bit decimal values. Used for flexible grouping of routes by assigning the group the same COMMUNITY value. Other routers can apply routing policies based on the COMMUNITY value. Used in a larg






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






5. EIGRP jargon meaning that EIGRP has placed a route into active status.






6. Static length subnet masking.






7. Modified Deficit Round-Robin.






8. A message sent by the multicast router - by default every 60 seconds - on each of its LAN interfaces to determine whether any host wants to receive multicast traffic for any group.






9. Uses Modular QoS CLI to control the amount and type of traffic handled by the router or switch control plane. Class maps identify traffic types - and then a service policy applied to the device control plane sets actions for each type of traffic.






10. Superframe






11. A BGP feature that overcomes the requirement of a full mesh of iBGP peers inside a single AS by separating the AS into multiple sub-autonomous systems.






12. A term referring generically to ways in which a router or switch can determine whether a particular device or user should be allowed access.






13. Diffusing Update Algorithm.






14. A term referring to the MQC policy-map command and its related subcommands - which are used to apply QoS actions to classes of packets.






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






16. Cisco Express Forwarding.






17. Message sent by a PIM-DM router to its upstream router asking to quickly restart forwarding the group traffic; sent using the unicast address of the upstream router.






18. Data Terminal Ready.






19. A wireless LAN that offers connections to the Internet from public places - such as airports - hotels - and coffee shops.






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






21. A message sent by a multicast router - by default every 125 seconds - on each of its LAN interfaces to determine whether any host wants to receive multicast traffic for any group.






22. Jargon used to refer to the first of two buckets in the dual token bucket model; its size is Bc.






23. The signal strength of the RF signal at the output of the radio card or access point transmitter - before being fed into the antenna. Measured in milliwatts - watts - or dBm.






24. The list of entries learned by the switch DHCP snooping feature. The entries include the MAC address used as the device's DHCP client address - the assigned IP address - the VLAN - and the switch port on which the DHCP assignment messages flowed.






25. Burst With shaping and policing - the number of additional bits that may be sent after a period of relative inactivity.






26. With OSPF - the OSPF router that wins an election amongst all current neighbors. The DR is responsible for flooding on the subnet - and for creating and flooding the type 2 LSA for the subnet.






27. Smoothed Round-Trip Time.






28. 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.






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






30. 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






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






32. WRED is a method of congestion avoidance that works by dropping packets before the output queue becomes completely full. WRED can base its dropping behavior on IP Precedence or DSCP values to drop low-priority packets before high-priority packets.






33. 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


34. Dynamic Trunking Protocol.






35. A small FIFO queue associated with each router's physical interface - for the purpose of making packets available to the interface hardware - removing the need for a CPU interrupt to start sending the next packet out the interface.






36. Link Access Procedure for Frame-Mode Bearer Services.






37. Cisco-proprietary STP feature in which a switch port monitors for incoming superior Hellos - and reacts to a superior Hello to prevent any switch connected to that port from becoming root.






38. A switch feature with which the switch watches ARP messages - determines if those messages may or may not be part of some attack - and filters those that look suspicious.






39. A 1-byte field in the IP header - originally defined by RFC 791 for QoS marking purposes.






40. A wireless LAN physical layer that operates at up to 11-Mbps data rates using DSSS in the 2.4-GHz band.






41. The PPP function for fragmenting packets - plus interleaving delay-sensitive later-arriving packets between the fragments of the first packet.






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






43. Ethernet feature in which a NIC or Ethernet port can only transmit or receive at the same instant in time - but not both. Half duplex is required when a possibility of collisions exists.






44. 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.






45. 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.






46. High Density Binary 3.






47. Backup designated router.






48. The portion of PPP focused on negotiating IP features






49. An optional transitive BGP path attribute that - for a summary route - lists the BGP RID and ASN of the router that created the summary.






50. In two-rate policing - the second and higher rate defined to the policer.