Which of the following options represents a common practice in the hardening of computing systems to enhance security?
Disabling the firewall on all servers
Using vendor-supplied default passwords for all devices
Allowing unrestricted root access to all users for convenience
Updating systems regularly
Updating systems regularly is a hardening technique that involves applying patches to operating systems and applications to protect against known vulnerabilities. Disabling firewalls or allowing root access would decrease system security, while using default passwords is against security best practices as they are often easily guessable.
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