What is a major challenge with monolithic applications?

What is a major challenge with monolithic applications?

• A. Changes to one area can potentially affect the entire application
• B. Performance isolation between modules
• C. Easy deployment
• D. Modular scalability

Answer: (A)

Monolithic applications fuse all components into a single, tightly coupled unit. Because everything is interwoven, a change in one area can ripple through the whole system, potentially causing regressions or side effects in other features. This tight coupling makes maintenance and testing more challenging, since updating a small part often requires rebuilding and redeploying the entire application to verify everything still works. It also makes scaling harder, because you must scale the whole monolith rather than just the specific parts that need more resources, which can be inefficient and costly. The other options describe aspects more aligned with microservices characteristics, such as isolation, independent deployment, and modular scalability, which are not typical strengths of a monolithic design.

Monolithic applications fuse all components into a single, tightly coupled unit. Because everything is interwoven, a change in one area can ripple through the whole system, potentially causing regressions or side effects in other features. This tight coupling makes maintenance and testing more challenging, since updating a small part often requires rebuilding and redeploying the entire application to verify everything still works. It also makes scaling harder, because you must scale the whole monolith rather than just the specific parts that need more resources, which can be inefficient and costly.

The other options describe aspects more aligned with microservices characteristics, such as isolation, independent deployment, and modular scalability, which are not typical strengths of a monolithic design.