Legacy systems:
A)often require expensive maintenance.
B)may be difficult to integrate with new systems.
C)use a collection of independent files or databases.
D)All of the above.

Question

Quizplus · Accepted Answer

Legacy systems often require expensive maintenance due to their outdated architecture and dependencies. They may also be difficult to integrate with new systems because of compatibility issues. Additionally, they frequently use a collection of independent files or databases, which can complicate data management and integration tasks.

Legacy Systems