Which of the following helps protect data privacy on the internet by…

Concept

Data privacy requires protecting information from unauthorized access or disclosure.

A network-security control supports this goal by regulating traffic between a trusted device or network and the internet according to defined rules.

Application

A firewall examines incoming and outgoing network traffic and permits or blocks it according to its security policy. This reduces unauthorized network access and adds a protective layer for systems and information.

Contrast

• Spyware covertly observes activity or collects information, so it creates a privacy risk.

• Cookies store browser data for sessions, preferences, or tracking; they are data-storage mechanisms, not network-access controls.

• Pop-ups display browser content or advertisements; they do not regulate network traffic.

Cross-check

Match each choice to its role: only a firewall is a traffic-control security mechanism among the offered choices. Therefore, the best-supported answer is Firewall.