Transaction RZ11 (Maintain Profile Parameters) is a fundamental tool for SAP system administrators. Its primary functions are to display the current value, default value, and documentation for any individual profile parameter. Furthermore, for parameters that are designated as "dynamically switchable," RZ11 allows an administrator to change the value in the memory of the currently running application server instance. This change takes effect immediately but is temporary and will be lost when the instance is restarted.

B. Set new values for profile parameters in profile files

This is incorrect. RZ11 only changes parameter values in the active server's memory. To make permanent changes, you must edit the profile files using transaction RZ10 (Edit Profiles).

C. Download values of all profile parameters in one step

This is incorrect. RZ11 is designed for working with individual parameters. The ABAP report RSPARAM is the appropriate tool to display or download a list of all profile parameters and their values.

1. SAP Help Portal

SAP NetWeaver Application Server for ABAP 7.52: In the section "Changing Profile Parameters"

the documentation states

"You can use transaction RZ11 to change dynamic profile parameters while the system is running... To display the attributes of a profile parameter

call transaction RZ11". This directly supports options A and D.

2. SAP Help Portal

SAP NetWeaver Application Server for ABAP 7.52: The section "Editing Profile Parameters" explicitly states

"You use transaction RZ10 to edit profiles." This confirms that RZ11 (option B) is not used for editing the profile files themselves.

3. SAP Help Portal

SAP NetWeaver Application Server for ABAP 7.52: The documentation for "Displaying All Profile Parameters (RSPARAM)" specifies

"You can use report RSPARAM to display all parameters for an instance." This clarifies that RZ11 (option C) is not the designated tool for a bulk display or download.