# Validators The options exchange requires some maintenance tasks to be executed periodically for proper operation, and validators 🕵️‍♀️ are incentivized to execute these tasks. Here is a short list of them: * Deploying new option token contracts * Liquidating expired option token contracts * Calling prefetch functions for updating contracts preprocessed parameters values (ex: daily price volatilities) to reduce traders gas usage * Monitoring collateral requirements for performing early liquidation of undercollateralized options writers open positions Upon successfully executing one or more of these tasks a validator will be rewarded with **Defi Options** governance tokens, which he/she could exchange for their monetary value, or accumulated for having a say in the governance process. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.defioptions.org/protocol/roles/validators.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.