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You have a SharePoint Server 2013 server farm. You purchase an app for SharePoint from the Office Store. You plan to deploy the app to the farm. You need to recommend which changes must be made to the network infrastructure before you can deploy the app. What should you recommend?
Correct Answer: D
Explanation/Reference: Before you use apps for SharePoint in your environment, you have to configure your environment to support them. If you don't configure your environment, site owners who try to install and use apps for SharePoint receive error messages. For all apps for SharePoint, you must set up a Domain Name Services (DNS) domain name to provide a host name for the installed apps. By using a separate domain name, apps for SharePoint are separated from SharePoint sites to prevent unauthorized access to user data and to reduce the possibility of cross-site scripting attacks. The use of separate URLs for apps for SharePoint and SharePoint sites is called app isolation. You also need a DNS record so that the domain name can get correctly resolved. You can create one of two of the following types of DNS records for app for SharePoint URLs: * A wildcard Canonical Name (CNAME) record that points to the host domain assigned to the SharePoint farm. * A wildcard A record that points to the IP address for the SharePoint farm.