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What should be done before opening an unknown file?

Answer and explanation

Correct answer: Check the source and perform a security scan

The governing concept is safe file handling and malware prevention. Before opening an unknown file, verify where it came from, confirm that the sender is trustworthy, and use updated security software to scan it. Thus option D is correct. Sending it to others spreads possible harm, randomly changing the extension does not remove malicious code, and unplugging the computer is unnecessary for normal inspection.

Related tags

Unknown-FileSecurity-ScanFile-SafetyMalwareUsing An Operating System And File ManagementIct (Information & Communication Technology) Skills IIct Information Communication Technology Skills IArtificial Intelligence

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