Explanation
A profile is a mechanism for extending SysML with additional modeling elements that are not part of the standard language. A profile can add methodology- and domain-specific concepts to SysML, such as stereotypes, tagged values, constraints, etc. These concepts can be used to tailor SysML to specific engineering domains or modeling methods. References:
https://www.omg.org/ocsmp/ocsmp-adv-exam.htmhttps://www.ibm.com/docs/SSB2MU_8.2.0/com.ibm.rhp.sysm