Test your basic knowledge |

Ethernet Technologies

Subject : it-skills
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. What information is stored in TCAM?






2. What happens when autonegotiating of link duplex mode fails on a Fast Ethernet link?






3. What is the name of the CEF engine that forwards packets in hardware?






4. What is the operational mode of a switch port that is a member of one VLAN?






5. Configures a switch port with a static access VLAN assignment






6. What is MLS?






7. Disables CEF operation on an interface






8. What is the name of a Layer 3 physical interface on a switch?






9. Where is source and destination addresses and other relevant protocol information for access lists stored in the TCAM table?






10. Resets the configuration of a switch port to its default values






11. What is 100BASE-TX?






12. What is 1000BASE-CX?






13. What tables are maintained by the CEF Layer 3 forwarding engine?






14. What is 1000BASE-ZX?






15. What are the names of the two basic generations of MLS?






16. What CEF optimisation technique cache FIB entries in switch line cards?






17. Disables CEF operation globally






18. What is TCAM overflow?






19. What is IEEE?






20. What is the content of TCAM Mask entries?

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21. What is LAN PHY used for?






22. Displays administrative and operational status for a specified interface






23. What are the reasons for packets being dropped by CEF?






24. Selects a switch port interface and enters interface configuration mode






25. Enables error-disable when the Port Aggregation Protocol (PAgP) is flapping






26. What are the symptoms of a duplex setting mismatch between two ends of a link?






27. What is the DTP negotiation mode of a switch port configured as dynamic?






28. What information is stored in CAM?






29. Displays a list of all interfaces in an error-disabled state






30. What CEF adjacency is used to switch packets destined for the null interface?






31. Enables automatic re-enabling of error-disabled ports






32. What is the DTP negotiation mode of a switch port configured as static access?






33. Displays entries in the Forwarding Information Base (FIB) for a specific subnet






34. How is the TCAM organised?






35. What is 10GBASE-SR/SW?






36. Displays error-disabled recovery timer information






37. What CEF optimisation replicates the entire FIB table among switch line cards?






38. What are the Fast Ethernet autonegotiation selection priorities?






39. Displays switch port information for a specified interface






40. What is 10GBASE-LR/LW?






41. What are the letters used with 10GBASE-X two-letter suffixes to specify the transceiver wavelengths?






42. What is the maximum cabling distance for Fast Ethernet over 62.5/125 micron multimode fibre?






43. What is the timer range for automatic re-enabling of error-disabled ports?






44. What is 1000BASE-SX?






45. Displays CEF Drop statistics with number of packets and reason for each line card






46. Creates an interface-range macro






47. What is 100BASE-FX?






48. Changes an interface to a layer 3 interface and erases all layer 2 interface configurations






49. What packets are immediately sent to the CEF Layer 3 engine for further processing?

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50. When do collisions occur?