Which domain requires stringent access controls and encryption for connectivity to corporate resources from home?

The answer is : Remote Access Domain

This domain helps the users to access files remotely which are in your organization's domain computers. Since this is a remote type of user access, it requires stronger security measures like encryption and numbers of authentication to ensure that the files are accessing by the authorized people. Such types of security measures are:

Permission to connect - sometimes, you as a client computer would ask permission from authorized person to access the domain server or other client computers connected with domain computers, especially when the computers that are trying to access are from outside the organization.IP address filtering and restriction - sometimes, only computers with allowed IP addresses can access computers with remote access domain function. Encryption - special keys will be embedded to make your files secured while they are travelling on a network.

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