Which of the following actions will secure a VNC session so that data transmitted between the remote and host computers cannot be easily intercepted on an untrusted network?
Reduce the screen resolution and color depth of the remote session.
Leave the VNC connection on its default settings because encryption is enabled automatically.
Disable all authentication requirements to streamline the connection.
Configure the VNC server and client to use TLS encryption or tunnel the session through SSH.
VNC traffic is not encrypted by default in many implementations. Enabling a built-in TLS option (where supported) or tunnelling the connection through an encrypted channel such as SSH wraps all VNC packets in strong encryption, preventing third-party eavesdropping. Simply lowering resolution, disabling authentication, or leaving default settings in place does nothing to protect the confidentiality of the session.
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What is TLS encryption and how does it secure a connection?
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What is SSH and how does it work to secure a VNC session?
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Why isn’t VNC traffic encrypted by default, and what risks does this pose?
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CompTIA A+ 220-1102 (V14)
Operational Procedures
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