Discover the purpose of the “F TSO,USERMAX=0” command in a mainframe environment. Learn how this command affects user logins and system access.
Table of Contents
Question
F TSO,usermax=0 does what
A. Forces the user to logoff
B. Forces the user to close the task
C. stops the user from logging in further
D. None of the above
Answer
C. stops the user from logging in further
Explanation
The command “F TSO,USERMAX=0” in a mainframe environment stops users from logging in further. When this command is executed, it sets the maximum number of users allowed to log in to TSO (Time Sharing Option) to zero. As a result, no additional users can log in to the system until the USERMAX value is changed to a non-zero value.
This command does not force currently logged-in users to log off or close their tasks. Instead, it prevents new users from logging in while allowing existing users to continue their sessions. By setting USERMAX to zero, system administrators can effectively control access to the mainframe environment, particularly during maintenance or troubleshooting periods.
In summary, “F TSO,USERMAX=0” is a powerful command that stops users from logging in further without affecting currently logged-in users, providing system administrators with granular control over mainframe access.
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