Final answer:
To help protect against virus attacks, a firewall can be configured to shut down all unneeded ports, reducing the risk of unauthorized acces therefore the correct option is B
Step-by-step explanation:
To help protect against virus attacks using a firewall, you can shut down all unneeded ports. This action helps to minimize the number of entry points available to malicious software.
While closing all incoming ports might seem like a stronger measure, it is not practical as it would prevent legitimate network traffic and disrupt normal operations. A well-configured firewall will allow necessary traffic while blocking unnecessary or potentially harmful connections.
The question refers to one of the Self-Assessment Questionnaires (SAQs) that merchants are required to complete as part of their compliance with the Payment Card Industry Data Security Standard (PCI DSS). Specifically, this questionnaire pertains to merchants that process payment cards exclusively through web-based virtual terminals and do not store electronic cardholder data after processing.
These merchants are not using e-commerce channels for transactions; instead, they rely solely on virtual terminals for payment therefore the correct option is B