Organization permission types include 'Full' and 'Read-only'. 'Full' permission allows complete administrative access to all networks and organization-wide settings, while 'Read-only' permission grants access to view most network and organization-wide settings without making changes.

The role of the Meraki Dashboard as the service provider when using SAML for single sign-on (SSO) is to parse the SAML request and authenticate users. In a SAML-based SSO process, the service provider (in this case, the Meraki Dashboard) receives a SAML assertion from the identity provider, extracts the relevant user information, and grants access based on the authentication and authorization decisions encoded in the SAML assertion.

Using a vMX appliance provides SD-WAN capabilities. SD-WAN is a key feature that enhances connectivity by automatically selecting the best path for traffic, optimizing performance, and supporting load balancing and failover for dual-connected sites. This makes it a superior option compared to merely using a VPN to connect directly to Azure.