Network Defense Essentials (NDE) 2026 – 400 Free Practice Questions to Pass the Exam

The situation described involves John handing over physical keys to access the server room. This indicates the use of a traditional method of securing a room, where a mechanical lock operates with physical keys. Mechanical locks are designed to be opened with a specific key that is uniquely cut to fit the lock's mechanisms, providing a straightforward and established method of physical security.

This method also highlights the dependency on tangible access control, which is typically straightforward to implement and understand. While there are various other security systems such as digital locks, keycard access systems, and electromagnetic locks that offer electronic means of securing a space, they do not fit the scenario where physical keys are exchanged. Therefore, the act of handing over server room keys directly corresponds to a mechanical locking system.