Maria is designing a small office network. To block unauthorized external access to internal resources, which device should she place at the network boundary to monitor and control incoming and outgoing traffic according to defined security rules?
Access point
Firewall
Switch
Router
A firewall is the correct answer because it is specifically designed to monitor and control incoming and outgoing network traffic based on security rules. This prevents unauthorized access to internal resources. A switch primarily connects devices within a network and manages data flows between them. A router connects multiple networks and routes traffic between them. An access point allows wireless devices to connect to a wired network, but it does not regulate traffic with security rules.
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