I was appeared Magento 2 Associate developer certification exam, in that I got the below tricky question, but I don't know the concept and answer of the question. can you have an idea regarding the answer and concept means kindly share your thoughts?
What will be the result of calling the save() method on a collection instance?
1. It will save all items with one INSERT... ON DUPLICATE KEY UPDATE
2. It will save the select query to the cache.
3. It will save the select query execution result into the cache.
4. It will loop over all items and call save() on each one.
What is the relationship between order entities and order address entities?
1. One shipping address per unit of quantity is possible.
2. One shipping address per line item is possible.
3. Only one shipping address per order is possible
4. One shipping address per product type is possible.