2. 计算机
  3. While troubleshooting a network connectivity problem, a Ezonexam technician observes steady link lights on both the workstation

While troubleshooting a network connectivity problem, a Ezonexam technician observes steady link lights on both the workstation

admin2009-05-19  86
问题 While troubleshooting a network connectivity problem, a Ezonexam technician observes steady link lights on both the workstation NIC and the switch port to which the workstation is connected. However, when the ping command is issued from the workstation, the output message "Request timed out." is displayed. At which layer of the 7-layer OSI model does the problem most likely exist?
A. The data link layer
B. The application layer
C. The protocol layer
D. The access layer
E. The session layer
F. The network layer
G. None of the above
选项
答案F
解析
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