A technician is setting up a new SOHO wireless router. Which of the following is the MOST important initial step to secure the network from unauthorized administrative access?
Place the router in the center of the building.
Enable the 5GHz frequency band.
Change the router's default administrator password.
Disable the SSID broadcast.
The correct answer is to change the router's default administrator password. Manufacturer default passwords are often publicly known and can be easily found online. Leaving the default password unchanged creates a significant vulnerability, allowing unauthorized individuals to access the router's configuration, monitor traffic, or launch attacks. Disabling the SSID broadcast is a form of 'security through obscurity' and is not considered a strong security measure, as hidden networks can still be detected by determined attackers. Placing the router centrally is a best practice for signal coverage, not security. Enabling the 5GHz band improves performance and can reduce interference but is not a primary security measure.
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