312-50V12 Question #186: Real Exam Question with Answer & Explanation

Question

You are a cybersecurity trainee tasked with securing a small home network. The homeowner is concerned about potential "Wi-Fi eavesdropping," where unauthorized individuals could intercept the wireless communications. What would be the most effective first step to mitigate this risk, considering the simplicity and the residential nature of the network?

Options

• ADisable the network's SSID broadcast
• BEnable encryption on the wireless network
• CEnable MAC address filtering
• DReduce the signal strength of the wireless router

Explanation

To prevent unauthorized individuals from intercepting wireless communications on a home network, the most effective initial step is to enable encryption. This ensures that even if data is intercepted, it remains unreadable without the correct key.

Common mistakes.

• A. Disabling the SSID broadcast only hides the network name from casual discovery but does not prevent determined attackers from finding the network or intercepting its traffic once connected or identified.
• C. MAC address filtering controls which devices are allowed to connect to the network but does not encrypt the data being transmitted, leaving communications vulnerable to interception by unauthorized parties within range.
• D. Reducing the signal strength of the wireless router limits the physical range of the network, which might make eavesdropping more difficult from a distance, but it does not encrypt the data itself and can degrade service for legitimate users within the home.

Concept tested. Wireless network data encryption

Reference. https://learn.microsoft.com/en-us/windows/security/threat-protection/security-baselines/wireless-network-security-policy

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