DRAG DROP
A company deploys an Office 365 tenant. You install the Active Directory Federation Services (AD FS) server role on a server that runs Windows Server 2012. You install and configure the Federation Service Proxy role service. Users sign in by using the Security Assertion Markup Language (SAML) protocol.
You need to customize the sign-in pages for Office 365.
Which pages should you customize? To answer, drag the appropriate page to the correct customization. Each page may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.
Select and Place:
configured for AD FS. all pages.
Answer: 
Explanation:
The HomeRealmDiscovery.aspx page shows a drop-down list that contains the list of trusted claims providers
The IdpInitiatedSignOn.aspx page is used to handle SAML-based IdP-initiated single sign-on (SSO).
The MasterPage.master is a template for all .aspx pages and can be used to change the overall appearance of