An Adobe Commerce Cloud merchant has been experiencing significant downtime during production deployment. They have already checked that the application is in ideal state.
In addition to the configuration of the SCD.MATRIX variable to reduce amount of unnecessary theme files, what would be the next steps to reduce the downtime?

• A. 1. Check SCD is configured under the build phase.
  2. Check if Adobe Commerce Cloud automatically adjusts SCD.THREADS.
• B. 1. Check SCD is configured under deploy phase.
  2. Decrease the SCD.THREADS to speed up the build process
• C. 1. Check SCD is configured under the build phase.
  2. Increase the SCD.THREADS to speed up the build process.

An Adobe Commerce Developer wishes to add an action to a pre-existing route, but does not wish to interfere with the functionality of the actions from the original route.
What must the developer do to ensure that their action works without any side effects in the original module?

• A. Inject the new action into the standard router constructor's $actiomist parameter.
• B. Add the action into to the controllers/front_name/ in My.Module, Magento will automatically detect and use it.
• C. In the route declaration, use the before or after parameters to load their module in before or after the original module.

When checking the cron logs, an Adobe Commerce developer sees that the following job occurs daily: main.
INFO: Cron Dob inventory_cleanup_reservations is successfully finished. However, the inventory_reservation table in the database is not emptied. Why are there records remaining in the inventory_reservation table?

• A. The "Auto Cleanup" feature from Multi Source Inventory was disabled in configuration.
• B. Only reservations matching canceled orders are removed by the cron job.
• C. Only reservations no longer needed are removed by the cron job.

In a new release of a module, a developer decides to rename a table that was defined in the earlier versions.
Which action, if any, allows the developer to prevent data loss?

• A. Define the table and columns mapping in the db.schema_whitelist.json
• B. Define onCreate="migrateDataFromAnotherTable(old_table_name)" attribute in the table tag.
• C. Declarative schema supports RENAME TABLE', so the data will be migrated to the new table automatically.

Which file is used to add a custom router class to the list of routers?

• A. routes.xml
• B. config.xml
• C. di.xml