单项选择题
Users are reporting that they are still experiencing network issues even though a fix was recentlyapplied. Which of the following troubleshooting methodology steps is the administrator using?（）
A. Escalating the problem B. Testing the solution and identifying the effects C. Continuing to gather information about the same symptoms D. Documenting the solution and the entire process
单项选择题 Which of the following has the HIGHEST data rate speed?（）
单项选择题 Which of the following should be used to test an internal NIC without having to connect it to thenetwork?（）
单项选择题 A stateless firewall requires a technician to:（）
