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






2. Message sent by a PIM-DM router to a downstream router when it receives a Graft message from the downstream router; sent using the unicast address of the downstream router.






3. Structure of Management Information.






4. A protocol used for reliable multicast and unicast transmissions. Used by EIGRP.






5. 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.






6. The structure inside telcos' original digital circuit build-out in the mid-1900s - based upon using TDM to combine and disperse smaller DS levels into larger levels - and vice versa.






7. Ready To Send.






8. 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.






9. A routing protocol feature by which the routing update includes only routes that have changed - rather than include the entire set of routes.






10. The MPLS feature by which an ingress E-LSR copies the IP packet's IP TTL field into the MPLS header's TTL field.






11. Operation - Administration - and Maintenance.






12. With EIGRP - a route that is not a successor route - but that meets the feasibility condition; can be used when the successor route fails - without causing loops.






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






14. An attack similar to a smurf attack - but using packets for the UDP Echo application instead of ICMP.






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






16. 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






17. Router ID.






18. 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






19. The combination of MPLS labels and links over which a packet will be forwarded over an MPLS network - from the point of ingress to the MPLS network to the point of egress.






20. Out of Frame.






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






22. With routing protocols - the process by which the router receiving a routing update determines if the routing update came from a trusted router.






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






24. Any OSPF neighbor for which the database flooding process has completed.






25. Network Time Protocol.






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






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






28. Spanning Tree Protocol.






29. Data Carrier Detect.






30. The process of taking the payload inside a Layer 2 frame - including the headers of Layer 3 and above - compressing the data - and then uncompressing the data on the receiving router.






31. The command used to initialize a SPAN or RSPAN session on a Catalyst switch.






32. Reported distance or Route Distinguisher.






33. 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.






34. The first 4 bits of the first octet must be 1110. The last 28 bits are unstructured.






35. Maximum Response Time.






36. 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






37. A message sent by a router - after receiving a Leave message from a host - to determine whether there are still any active members of the group. The router uses the group address as the destination address.






38. 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.






39. Version 6 of the IP protocol - which uses 128-bit IP addresses.






40. In the context of SNMP - the Get command is sent by an SNMP manager - to an agent - requesting the value of a single MIB variable identified in the request. The Get request identifies the exact variable whose value the manager wants to retrieve. Intr






41. A characterization of a BGP path attribute in which all BGP implementations must support and understand the attribute (well known) - but BGP Updates can either include the attribute or not depending on whether a related feature has been configured (d






42. A Frame Relay address used in Frame Relay headers to identify the VC






43. Differentiated Services.






44. A group of devices on one or more LANs that are configured (using management software) so that they can communicate as if they were attached to the same wire - when - in fact - they are located on a number of different LAN segments. Because VLANs are






45. Wired Equivalent Privacy.






46. A route that is used for forwarding packets when the packet does not match any more specific routes in the IP routing table.






47. An MPLS term referring to the MPLS label just before the IP header. Also called the VPN label when implementing MPLS VPNs.






48. The range 239.0.0.0 through 239.255.255.255 that IANA has assigned for use in private multicast domains.






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






50. A problem that occurs when an AS does not run BGP on all routers - with synchronization disabled. The routers running BGP may believe they have working routes to reach a prefix - and forward packets to internal routers that do not run BGP and do not