How are viruses typically transmitted to computers?

• A. Via self-replicating network processes
• B. When opening an infected email attachment
• C. By running infected internet applications
• D. Through advertisements during software installation

Answer: (B)

Viruses are commonly transmitted to computers primarily through infected email attachments. When a user opens an email attachment that contains malicious code, the virus is executed on the user's system. This method is particularly effective because it often exploits user trust—people are more likely to open attachments from known contacts or familiar sources without taking proper precautions.

In the context of other potential transmission methods, while network processes can contribute to the spread of viruses, they do not constitute the primary method of transmission. Running infected internet applications can also introduce viruses, but this typically occurs after initial exposure. Similarly, advertisements during software installation may promote unwanted software or malware; however, these practices are not as direct and immediate as the act of opening an infected email attachment.

Understanding this method of transmission emphasizes the importance of exercising caution when handling email attachments, especially if they're from unfamiliar senders or seem suspicious, to mitigate the risk of virus infections.