Learn about the z/OS command “D TS,L” used to display a list of active logons on an IBM mainframe system. Discover what information this command provides to mainframe operators and administrators.
Table of Contents
Question
Command D TS,L will
A. Diplay all the started task
B. Display contention
C. Display list of active logons
D. Display time and date of last IPL
Answer
C. Display list of active logons
Explanation
The z/OS command “D TS,L” displays a list of active logons on an IBM mainframe system. When this command is entered on the system console or an EMCS console, it provides the following information:
- Userids of all users currently logged on to the system
- Time and date when each user logged on
- Terminal or telnet client name from which each user is logged on
- Job name associated with each user’s session
This command is useful for mainframe operators and administrators to monitor who is actively using the system at any given time. It allows them to see how many users are logged on, identify specific users, and track logon activity over time.
The “D TS,L” command only displays currently active logons. It does not show users who have previously logged off or users who have disconnected their sessions but are still logged on.
In summary, the z/OS command “D TS,L” is used to display a list of active logons, providing valuable information to monitor and manage user activity on an IBM mainframe system. The correct answer to the question “Command D TS,L will” is option C – Display list of active logons.
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