Explanation/Reference:
Explanation:
Scenario:
The SharePoint environment contains five front-end web servers that use Windows Network Load Balancing (NLB) with NLB affinity set to None.
App1 must use Windows Authentication.
App1 must have access to each employee's photo document library
Multiple authentications often occur when users log on to and navigate in SharePoint. Users have reported some small delays accessing data.
The question refers to 'the authentication issue' - strangely it is not clear whatis meant.
The Secure Store Service is an authorization service that runs on an application server. The Secure Store Service provides a database that is used to store credentials. These credentials usually consist of a user identity and password, but can also contain other fields that you define. For example, SharePoint Server
2013 can use the Secure Store database to store and retrieve credentials for access to external data sources. The Secure Store Service provides support for storing multiple sets of credentials for multiple back-end systems.