What does BitLocker provide in Windows?

Question

BlackTom AI · Accepted Answer

To tackle the question, we evaluate what BitLocker is designed to do in Windows and match each option to that purpose.
Option a: 'Firewall protection' — While Windows includes a firewall feature, BitLocker is not responsible for firewall duties. Firewall protection is a networking security feature that monitors and controls incoming/outgoing traffic, not encryption of data at rest. This makes this option incorrect.
Option b: 'Full disk encryption' — BitLocker’s primary role is to encrypt the entire drive contents, protecting data at rest even if the physical disk is removed or stolen. This is the defining characteristic of BitLocker, so this choice is correct.
Option c: 'Anti-malware scanning' — Anti-malware scanning is the job of an antivirus/antimalware solution (such as Windows Defender). BitLocker does not scan for malware or threats; it protects data by encryption, not by detecting malicious software. Therefore this option is incorrect.
Option d: 'Intrusion detection and prevention' — IDS/IPS are security measures that monitor for suspicious activity and attempt to block it. BitLocker does not perform network intrusion detection or prevention; its scope is limited to disk encryption. Hence this option is incorrect.
In summary, only option b correctly identifies BitLocker’s function, while the others describe different security roles unrelated to BitLocker’s purpose.

What does BitLocker provide in Windows?单项选择题

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