Which of the following network access methods is used to securely access resources, such as a corporate cloud or network, as if they were directly connected?
A client-to-site VPN (remote-access VPN) is designed to let an individual user securely connect into an organization’s network over an untrusted network (like the internet) and access resources as if the user were locally connected. Network+ objectives emphasize VPNs as encrypted tunnels that provide confidentiality and integrity for traffic, commonly using technologies such as IPsec or SSL/TLS-based VPNs. With a client-to-site VPN, the user’s device establishes a tunnel to the corporate VPN gateway, receives routes (and sometimes DNS settings), and can reach internal subnets and cloud resources according to policy.
A jump box/host is a hardened intermediate system used to access sensitive segments, but it does not make the user’s device behave as if it is directly on the network; it provides controlled administrative access. SSH is a secure remote management protocol for connecting to a host’s command line—useful for administration, not full network access to multiple internal resources. A GRE tunnel provides encapsulation but does not provide encryption by itself, so it is not inherently “securely access” unless combined with additional security (e.g., GRE over IPsec). Therefore, client-to-site VPN is the correct choice.
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