220-802 Question #151: Real Exam Question with Answer & Explanation

The correct answer is C. Default password. The default administrator password must be changed first when securing a new wireless router because default credentials are publicly known and represent the highest immediate security risk.

Networking

Question

When securing a new wireless router, which of the following should be changed FIRST?

Options

ADefault SSID
BRadio power levels
CDefault password
DDHCP settings

Explanation

The default administrator password must be changed first when securing a new wireless router because default credentials are publicly known and represent the highest immediate security risk.

Common mistakes.

A. Changing the default SSID is a good practice but is not the highest priority - an attacker who knows the default SSID still cannot access the router without valid credentials.
B. Adjusting radio power levels relates to signal coverage and interference management, not to preventing unauthorized administrative access.
D. Modifying DHCP settings affects IP address distribution and is a secondary concern compared to securing admin account access.

Concept tested. Wireless router initial security - changing default password

Reference. https://www.cisco.com/c/en/us/support/docs/smb/routers/cisco-rv-series-small-business-routers/1510-change-the-default-password-of-the-cisco-rv-series-routers.html

Topics

#wireless router security#default password#router hardening#WLAN

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