A network technician is attempting to harden a commercial switch that was recently purchased.

Changing the default password is a hardening technique that best mitigates the use of publicly available information, such as vendor documentation, online forums, or hacking tools, that may reveal the default credentials of a commercial switch. By changing the default password to a strong and unique one, the network technician can prevent unauthorized access to the switch configuration and management.

References:

Network Hardening - N10-008 CompTIA Network+ : 4.3 - YouTube1

CompTIA Network+ Certification Exam Objectives, page 151