220-802 Question #267: Real Exam Question with Answer & Explanation

The correct answer is A: Configure the router to allow access by MAC address.. MAC address filtering allows a router to create an allowlist of specific hardware addresses. Since every network interface card has a unique MAC address, configuring the router to permit only the single known device's MAC address effectively blocks all other devices from connecti

Question

The technician is dispatched to a user's home to secure a wireless network. The SOHO user has only one system to connect wirelessly, yet wishes to protect their Wi-Fi from unauthorized use. Which of the following will BEST meet the user's requirements?

Options

AConfigure the router to allow access by MAC address.
BConfigure the use of DHCP.
CConfigure the use of static IP addresses.
DConfigure the network to utilize a proxy.

Explanation

MAC address filtering allows a router to create an allowlist of specific hardware addresses. Since every network interface card has a unique MAC address, configuring the router to permit only the single known device's MAC address effectively blocks all other devices from connecting. DHCP (B) simply assigns IP addresses automatically and offers no access control. Static IP addressing (C) also does nothing to prevent unauthorized wireless association. A proxy (D) operates at a higher network layer and does not control who can join the Wi-Fi network. MAC filtering directly addresses the requirement of restricting wireless access to one specific device.

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