You work as a Network Administrator for Perfect Labs Inc. The company has a TCP/IP-based network, which is connected to the Internet. You want to provide Internet access to users. You are concerned…

Installing a virus protection program on each workstation provides direct, real-time scanning and detection at the endpoint where files are actually executed, ensuring viruses downloaded from the Internet are caught and blocked before causing harm.

SCANDISK is a disk integrity utility that checks for file system errors and bad sectors, and has no capability to detect or remove viruses.

A firewall controls which network traffic is allowed in or out based on rules, but does not inspect the content of permitted traffic for embedded viruses or malware payloads.

A proxy server intermediates client requests to the Internet and can enforce access policies, but does not inherently provide antivirus scanning or protection against virus-infected files.