Which of the following is the PRIMARY purpose of a data loss prevention (DLP) tool?

Question

Options

• ABlocking transmission of confidential data
• BAnalyzing data at rest
• CEstablishing data classification
• DRestricting the availability of confidential data

• A
  95% (55)
• C
  2% (1)
• D
  3% (2)

Explanation

Data Loss Prevention (DLP) tools are designed primarily to detect and block the transmission of sensitive or confidential data - whether via email, web uploads, USB drives, or other egress points - preventing unauthorized disclosure.

Why the distractors are wrong:

• B (Analyzing data at rest) - DLP can scan stored data, but that's a secondary capability, not its primary purpose; tools like data discovery/classification scanners are better suited for this.
• C (Establishing data classification) - Classification policies are typically defined by governance frameworks or separate classification tools before DLP is configured; DLP enforces rules based on classification, it doesn't create it.
• D (Restricting availability) - That describes access controls (ACLs, permissions, or least-privilege policies), not DLP. DLP is about preventing leakage, not controlling who can open a file.

Memory tip: Think of DLP as a "data customs agent" - its job is to stop sensitive data from leaving the organization, not to organize files or control internal access. If data is trying to cross a boundary (email out, upload to cloud, copy to USB), DLP is what checks it.

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