220-802 Question #383: Real Exam Question with Answer & Explanation

The correct answer is B: Manufacturer password. Wireless routers ship with well-known default administrator credentials (username and password) that are publicly documented by manufacturers. If these defaults are not changed, anyone with network access can log into the router's admin interface and modify its configuration. Cha

Question

A technician wants to ensure that only authorized administrators can make configuration changes to the company's wireless router. Which of the following MUST the technician change to prevent unauthorized users from modifying the access point configuration?

Options

AMAC address filters
BManufacturer password
CDefault SSID
DConfigure encryption

Explanation

Wireless routers ship with well-known default administrator credentials (username and password) that are publicly documented by manufacturers. If these defaults are not changed, anyone with network access can log into the router's admin interface and modify its configuration. Changing the manufacturer's (default) administrator password is the most critical step to securing administrative access. MAC address filtering (A) controls which client devices can connect to the wireless network, but does not protect the admin interface. Changing the default SSID (C) is a good practice for obscuring the router model, but does not prevent admin access. Configuring encryption (D) secures data in transit over the wireless network, but does not restrict access to the router's configuration panel.

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