单项选择题
A. Escalate the call to a technician
B. Document any changes in the web server configuration.
C. Implement and test a solution.
D. Continuously ping the server until a ping response is obtained
单项选择题 Which of the following devices would MOST likely integrate a DHCP server?（）
单项选择题 An administrator is having a hard time adding a new switch to the network. After verifying that allthe ports are configured correctly on each switch, which of the following should the administratorverily NEXT?（）
单项选择题 Which of the following connectivity issues is likely to occur within a token ring network?（）