North Carolina Locksmith Practice Exam

What is a Great Grand Master Key System characterized by?

1. Operating only one key

2. Having two levels of keying

3. Having four levels of keying

4. Resetting combination locks

The correct answer is: Having four levels of keying

A Great Grand Master Key System is characterized by having four levels of keying, which allows for a highly organized and versatile locking mechanism suitable for complex security needs. In this system, the key hierarchy typically includes individual keys for specific locks (usually called “change keys”), master keys that can operate several locks, grand master keys that can access multiple master key groups, and the great grand master key which is the highest level key capable of operating all locks within the system. This complexity is essential in environments such as large buildings or institutions where different levels of access are required. By using four levels of keying, the system allows for a structured approach to security, ensuring that various personnel can access different areas while maintaining overall control of the facility's security. Other options describe either simpler systems or key functionalities that do not pertain to the organizational structure of a Great Grand Master Key System. For instance, operating only one key refers to single-key systems that lack the hierarchical access levels, while resetting combination locks pertains to a different kind of keying system entirely. Having two levels of keying would only indicate a master key system, which does not offer the comprehensive access control provided by a Great Grand Master Key System.