How can viruses spread to other computers?

How can viruses spread to other computers?

• A. Through physical network connections
• B. With the transfer of infected files
• C. By sending emails
• D. By accessing secure networks

Answer: (B)

Viruses can spread to other computers primarily through the transfer of infected files. When a user unknowingly shares or opens a file containing a virus, the malicious code embedded in that file can execute and infect the host system. This process often occurs with executable files, document formats, or even compressed files that have been infected. Once a virus is present on a computer, it can seek out other files, programs, or connected devices to further propagate itself. While other methods such as sending emails or using physical connections can also facilitate the spread of viruses, they typically involve the underlying transfer of infected files. For instance, in the case of email, the virus may reside in an attachment, and users who download that attachment could unwittingly install the malware. Similarly, physical network connections may allow for direct file sharing, but it again depends on the malicious files being transferred. Accessing secure networks doesn't inherently spread viruses; rather, it may offer pathways for infection if the network’s security measures are circumvented or if infected devices connect to the network. Thus, the transfer of infected files is a fundamental and direct mechanism by which viruses disseminate, making it the most accurate choice in the context of how virus infection occurs.

Viruses can spread to other computers primarily through the transfer of infected files. When a user unknowingly shares or opens a file containing a virus, the malicious code embedded in that file can execute and infect the host system. This process often occurs with executable files, document formats, or even compressed files that have been infected. Once a virus is present on a computer, it can seek out other files, programs, or connected devices to further propagate itself.

While other methods such as sending emails or using physical connections can also facilitate the spread of viruses, they typically involve the underlying transfer of infected files. For instance, in the case of email, the virus may reside in an attachment, and users who download that attachment could unwittingly install the malware. Similarly, physical network connections may allow for direct file sharing, but it again depends on the malicious files being transferred. Accessing secure networks doesn't inherently spread viruses; rather, it may offer pathways for infection if the network’s security measures are circumvented or if infected devices connect to the network.

Thus, the transfer of infected files is a fundamental and direct mechanism by which viruses disseminate, making it the most accurate choice in the context of how virus infection occurs.