The distributed database above uses the basic invoice design we have seen previously. An invoice has one customer, but an invoice has multiple lines, so the invoice line is the bridge entity between invoices and products. Specifically, an invoice line references an invoice number and a product number. Only one vendor supplies a given product, so the vendor does not appear on an invoice line.

Given this distributed DDBMS scenario, specify and explain the types of operations $($remote request, remote transaction, distributed transaction, distributed request, local request, local transaction$)$ the database must support in performing the queries in the following problems. Assume the queries are correct $($I did not intentionally put any errors into them, so if you see an error, correct it in red$).$