Magento 2 Cron Job feature facilitates scheduling activities that needs to be executed at a specific time frame. Magento 2 store owners can set a specific time for such automated tasks depending on their business requirements. An additional cron job can work easily for certain modules with features such as newsletter, backup scheduling, google sitemaps and much more. You might have created a store that works on store backup. However, it is even not possible to set a specific time and backup the store manually. The only way is to dynamically schedule cron job in Magento 2 system configuration.