Multiple choice technology architecture What are the disadvantages of ESB? a) Enterprise Message Model is usually not mandatory b) Vendor not depending, it requires less hardware to run. c) Both a & b d) None of the Above Reveal answer Fill a bubble to check yourself D Correct answer Explanation The disadvantages of an Enterprise Service Bus (ESB) include increased architectural complexity and high hardware overhead. Since none of the options accurately describe these drawbacks, 'None of the Above' is correct.