Final answer:
The Operations/maintenance phase of the SDLC involves maintaining and updating systems, developing and testing enhancements and modifications, and adding or replacing hardware and software components.
Step-by-step explanation:
The phase of the SDLC in which systems and products are in place and operating, enhancements and modifications are being developed and tested, and hardware and software components are added or replaced is the Operations/maintenance phase.
In this phase, the system is up and running, and any necessary modifications or upgrades are made to ensure the ongoing functionality and performance of the system. This includes testing and refining new features, as well as the addition or replacement of hardware or software components.
For example, if a company has implemented a new customer relationship management (CRM) system, the Operations/maintenance phase would involve regularly maintaining and updating the system to meet the evolving needs of the company and its customers.