Which statement best describes a permissioned validator set in a subnet?

• A. It requires vetted participants.
• B. It allows any participant without vetting.
• C. It is limited to a fixed group with no governance.
• D. It operates without any security policies.

Answer: (A)

A permissioned validator set is all about controlling who can participate by requiring vetted participants. In a subnet that is permissioned, validators come from a pre-approved group that has met specific criteria, such as identity, reputation, or compliance standards, before they’re allowed to validate. This vetting creates clearer accountability, stronger security, and more predictable governance and performance because those joining have already agreed to follow established rules and policies. The other options don’t fit because allowing anyone without vetting defeats the purpose of restriction, a fixed group with no governance ignores ongoing membership decisions and updates, and operating without security policies contradicts the need for controlled access and validator behavior.