You are the administrator for a large single-domain network. You have several Windows Server domain controllers and member servers. Your 3,500 client computers are Windows workstations. Today, one of your users has called for help. It seems that his computer is reporting that a trust cannot be established between his Windows computer and the domain controller. He is unable to log on to the domain. You examine the computer's account using Active Directory Users and Computers, and there is nothing obviously wrong. You need to allow this user to log on to the domain. What should you do?

Part d: float check string has a method s.isdigit() that returns true if string s contains only digits and false otherwise, i.e. s is a string that represents an integer. write a function named float_check that takes one parameter that is a string and returns true if the string represents a float and false otherwise. for the purpose of this function we define a float to be a string of digits that has at most one decimal point. note that under this definition an integer argument will return true. remember “edge cases” such as “45.” or “.45”; both should return true. for example: float_check('1234') returns true float_check('123.45') returns true float_check('123.45.67') returns false float_check('34e46') returns false float_check('.45') returns true float_check('45.') returns true float_check('45..') returns false