Which of the below is NOT a disadvantage of having a fragmented system or microservices?

All of the above

Monitoring & Logging : for effective monitoring & logging, requires centralized service

Inter-process communication : network latency and hiccups

Complicated Debugging and troubleshooting : root cause may be deep inside the chain of services

Security : need to manage credentials and access management

Limited data mashup in memory and limited to APIs

Multiple transactions committed independently