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 fields are rewritten in hardware before a Layer 3 packet is switched to the to egress queue of a multilayer switch?






2. Enables error-disable for rate-limiting of DHCP snooping






3. What technology was merged into the IEEE 802.3 Ethernet standard to create Gigabit Ethernet?






4. What are the Fast Ethernet autonegotiation selection priorities?






5. Creates an interface-range macro






6. What is the administrative mode of a switch port that carries transparent Layer 2 VPNs?






7. Sets the administrative mode of a switch port to access






8. Adds a static entry to the MAC address table






9. Displays dynamic CAM table entries






10. What is LOU?






11. What is the administrative mode of a switch port that is a member of one VLAN?






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






13. What is the maximum cabling distance for Fast Ethernet over singlemode fibre?






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






15. How are ternary combinations implemented?






16. What are the names of CEF optimisation techniques using specialised forwarding hardware?






17. How are packets marked before being sent to the CEF Layer 3 engine for further processing?






18. What are the types of layer 3 switched interfaces






19. What is LAN PHY used for?






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






21. Displays the contents of the CAM table






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






23. How are the TCAM Mask/Value pairs evaluated?






24. Enables error-disable detection






25. Displays CEF adjacency table information






26. How does the IEEE 802.3ae standard differ from its predecessors at the physical layer?






27. What are the duplex modes of a GigaStack GBIC?






28. What is 100BASE-T4?






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






30. What is CEF?






31. What is 1000BASE-T?






32. Sets the speed of a Fast Ethernet or Gigabit Ethernet interface






33. Displays a list with status of all interfaces






34. What are the administrative modes of Layer 2 switched interfaces?






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






36. Selects an interface-range macro and enters interface configuration mode






37. What is the maximum cabling distance for 10GBASE-SR/SW?






38. What is the operational mode of a switch port that carries traffic for multiple VLANs?






39. What is 10GBASE-ER/EW?






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






41. What is the content of TCAM Mask entries?

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42. What is 100BASE-FX?






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






44. When do collisions occur?






45. What CEF adjacency is used when packets must be sent to the Layer 3 engine for further processing?






46. Enables error-disable for when the port link state is flapping between the up and down states






47. Enables error-disable for errors with dynamic ARP inspection






48. What are the basic operations that a frame undergoes as it passes through a Layer 2 switch?






49. What is TCAM?






50. What is WWDM?