Which tool is described as patch management software that scans the network and installs and manages patches?

• A. Nessus Professional
• B. OpenVAS
• C. Nikto
• D. GFI LanGuard

Answer: (A)

Patch management combines scanning for missing updates with the automatic deployment and ongoing management of patches across all systems. A tool that clearly fits this role is GFI LanGuard, because it can scan the network to identify missing patches and then install and manage those patches across Windows, Linux, and various applications, with reporting and remediation workflows to track progress.

Nessus Professional and OpenVAS are primarily vulnerability scanners—they’re excellent at discovering weaknesses and missing patches but don’t automate patch installation and management across endpoints. Nikto focuses on web server security and isn’t a patch management tool.