A numeric value is any group of characters such as "Hello."

Which statement tests if a singly linked node variable named myItem has been initialized?

A. if myItem is Null: B. if myItem != None: C. if myItem = None: D. if myItem is not Null:

In a PAM configuration file, which option is used to specify that the password used should be the one used for the previous module?

A. auth B. passord C. account D. use first pass