What is the primary function of port 443 in Qlik Sense?

The primary function of port 443 in Qlik Sense is to serve as the default listen port for the Qlik Sense Proxy Service, specifically for HTTPS communication. The use of port 443 is standard for secure web traffic and is critical for ensuring that data transmitted between clients and the Qlik Sense server is encrypted. This means that when users access Qlik Sense through a web browser, their interactions with the application are secured over this port, which is essential for protecting sensitive data and maintaining user privacy.

When configured correctly, port 443 allows the Qlik Sense Proxy Service to handle incoming requests, process user authentication, session management, and route the requests to the appropriate Qlik Sense services. By utilizing HTTPS on this port, Qlik Sense not only ensures secure connections but also improves trust and compliance with industry standards regarding data protection.

The other options refer to different functionalities that do not pertain to the primary role of port 443. For instance, the Qlik Sense Repository Service and its REST API would operate on separate designated ports, which do not focus on HTTPS. Therefore, understanding the role of port 443 emphasizes its significance in maintaining secure communication within the Qlik Sense environment.