What is a function of a remote access VPN?
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A. B. C. D.D.
A remote access VPN (Virtual Private Network) is a technology that enables users to connect to a private network, such as a company's internal network, from a remote location using the Internet or another public network. The primary function of a remote access VPN is to provide secure access to network resources for remote users.
Option A, "establishes a secure tunnel between two branch sites," is not correct because this describes a site-to-site VPN, which is used to connect two different sites or networks securely. In contrast, a remote access VPN is used to connect remote users to a company's internal network.
Option B, "uses cryptographic tunneling to protect the privacy of data for multiple users simultaneously," is incorrect because while cryptographic tunneling is used to protect the data sent over a VPN connection, a remote access VPN typically provides access to only one user at a time, rather than multiple users simultaneously.
Option C, "used exclusively when a user is connected to a company's internal network," is incorrect because a remote access VPN is precisely used to allow a user to connect to the company's internal network from a remote location.
Therefore, the correct answer is D, "allows the users to access company internal network resources through a secure tunnel." This option best describes the primary function of a remote access VPN, which is to enable remote users to securely access network resources such as files, applications, and printers on a company's internal network. By using a remote access VPN, the user's device establishes an encrypted connection to the company's network, which ensures the privacy and security of the transmitted data.