Which of the following is the most appropriate description concerning operational
management for user IDs and passwords?
a) In order to simplify management work, currently unused user IDs and passwords are
allowed to be reused.
b) In order to respond to problems promptly, a table of user IDs and passwords are
created and stored by administrators.
c) In order to prevent someone from maliciously using another person’s ID and
password, users are free to change their own passwords at any time.
d) In order to improve convenience, personnel relocation information is used to register
temporary user IDs and passwords in advance.