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What system uses segments like blocks and rows for key combinations in a master key system?

Standard Key Coding System

Standard Progression Format

The correct answer is the Standard Progression Format. This system is specifically designed to organize key combinations using a structured approach that involves dividing the keycodes into segments or groups, such as blocks and rows.

In a master key system, organizing key combinations into a standardized format allows locksmiths to effectively manage and track multiple levels of keys within a facility. The progression format employs a systematic methodology that facilitates the creation of master keys, allowing them to open various locks while maintaining unique keys for individual locks.

This structure is essential in ensuring compatibility and preventing conflicts among different key sets, making it easier to maintain security and access control. The layout of blocks and rows enhances clarity and efficiency in managing the keys, which is particularly useful for large organizations or facilities that require a comprehensive key management system.

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Master Key Reference System

Key Grouping Method

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