Which of the following statements is true?
1. "Load balancing" refers to the process of loading data in a sequential fashion during an ETL process.
2. All of these statements are true.
3. In a three tier ERP environment, there is typically an application, database and a client (or browser) running.
4. A program that aids communication between two software is called a module.
5. Companies running ERP systems usually keep three sets of environments; development, production and recovery.