30. Adaptive maintenance is the type of maintenance that is carried out to correct errors that were not discovered during the product development phase. the type of maintenance usually required for...

Extracted text: 30. Adaptive maintenance is the type of maintenance that is carried out to correct errors that were not discovered during the product development phase. the type of maintenance usually required for porting the software to work in a new environment. none of the given choices the type of maintenance carried out to improve the performance of the system.