A customer needs to upgrade from IBM i 5.4 to 7.1 . The current system is used extensively for
Web serving. Extensive database activity is performed in SQL.
Which factor will affect the time to perform the upgrade of the operating system?

A.
The ES Type must convert during the IBM i upgrade.

B.
The DB2 referential constraints must be manually reestablished.

C.
Some database joins must be reformatted to be compliant with new SQL standards.

D.
The logical file access paths must be rebuilt into Encoded Vector Indexes (EVI).

Explanation: