You work as a Network Administrator for NetTech Inc. The company's network is connected to the Internet. For security, you want to restrict unauthorized access to the network with minimum administrati

Question

Options

• AConnect a brouter to the network.
• BImplement a proxy server on the network.
• CConnect a router to the network.
• DImplement firewall on the network.

• A
  5% (1)
• B
  5% (1)
• C
  10% (2)
• D
  81% (17)

Explanation

Implementing a firewall (D) is the correct choice because firewalls are purpose-built hardware (or software) security devices designed specifically to filter unauthorized traffic at the network boundary, requiring minimal ongoing administration once configured. A brouter (A) is a hybrid bridge/router device focused on traffic routing between network segments, not security enforcement. A proxy server (B) can provide some access control but is a software-based solution running on a server, not a dedicated hardware security appliance - and it requires more ongoing administrative overhead. A standard router (C) can filter traffic via ACLs, but its primary purpose is routing packets between networks, not security; it lacks the robust inspection and policy enforcement of a firewall. Memory tip: Think "Firewall = Fortress" - it's the dedicated hardware guardian at your network's gate, built for one job: keeping intruders out with minimal fuss.

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