Which of the following provides the GREATEST assurance that an organization has effective controls preventing connection of unauthorized Internet of Things (IoT) devices to the corporate network?

The correct answer is C. Assessing network access control (NAC) configurations. The most effective way to prevent unauthorized IoT devices from connecting is through network access control (NAC), which enforces authentication and authorization before allowing a device onto the network. Vulnerability scans (A): Identify weaknesses but do not actively prevent

Submitted by jakub_pl· Apr 18, 2026Protection of Information Assets

Question

Options

AReviewing authenticated network vulnerability scan results
BAssessing as-implemented IoT device configurations
CAssessing network access control (NAC) configurations
DReviewing IT policies covering IoT authorizations

How the community answered

(25 responses)

A
12% (3)
B
8% (2)
C
56% (14)
D
24% (6)

Explanation

The most effective way to prevent unauthorized IoT devices from connecting is through network access control (NAC), which enforces authentication and authorization before allowing a device onto the network. Vulnerability scans (A): Identify weaknesses but do not actively prevent device connections. Reviewing IoT configurations (B): Focuses on existing devices, not unauthorized ones. Policies (D): Provide guidance but do not enforce technical prevention.

Topics

#Network Access Control#IoT Security#Access Control#Preventive Controls

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