单项选择题 After 100 meters (328 feet), CAT6 cabling is known to experience which of the following symptoms?（）

单项选择题 Kerberos is a form of user authentication that:（）

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?（）