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 are the basic operations that a frame undergoes as it passes through a multilayer switch?






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






3. What is the default duplex mode of a 10 Mbps Ethernet interface?






4. What is CEF?






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






6. When are mode-conditioning patch leads required with 1000BASE-LX/LH transceivers?






7. Enables error-disable when trunking encapsulation is flapping from one type to another






8. What is the TCAM Value and Mask for an IGMP access list?






9. How are MAC addresses shown in the detailed output from the CEF adjacency table?






10. What is EMI?






11. How do Layer 2 switches provide isolation between hosts?






12. What is ANSI?






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






14. What function is performed by the Switching Database Manager (SDM)?






15. What is the DTP negotiation mode of a switch port configured as trunk?






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






17. Specifies the timer for automatic re-enabling of error-disabled ports






18. What portion of the FIB contains the Layer 3 next-hop addresses for each entry together with the corresponding Layer 2 information?






19. What is the maximum cabling distance for 1000BASE-CX?






20. What CEF adjacency is used to discard packets because of access list or other policy action?






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






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






23. What changes are made to packets by the CEF packet rewrite engine just before forwarding?






24. What is CSMA/CD?






25. Enables error-disable for conditions that trigger unicast flood blocking on a port






26. What is the default duplex mode of a Gigabit Ethernet interface?






27. Displays interface configuration information






28. What is 100BASE-T4?






29. How is link duplex mode determined on Fast Ethernet links configured to autonegotiate?






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






31. What are the common PMD types for 10 Gigabit Ethernet?






32. How does topology based switching work?






33. What two IOS software components are involved in TCAM operation?






34. Disables CEF operation globally






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






36. What is the standard for 10 Gigabit Ethernet (10GbE)?






37. What is CAM?






38. What is full duplex operation?






39. What is TCAM overflow?






40. What denotes the number of times a CEF entry has been updated since the CEF table was created?






41. How is the TCAM organised?






42. What are the operational modes of a Layer 2 switched interface?






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






44. What is 10BASE-T?






45. When can a switch start to learn source MAC addresses on incoming ports?






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






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






48. What is 1000BASE-LX/LH?






49. What is the maximum cabling distance for 10GBASE-CX4?






50. What is 10GBASE-X?