The chief information security officer $($CISO$)$ at a medium$-$sized healthcare company conducts an audit of the company's current security infrastructure. The company has Next Generation Firewalls $($NGFWs$)$ deployed at all external network boundaries, and the CISO is evaluating the possibility of supplementing or replacing the NGFWs with Unified Threat Management $($UTM$)$ devices. If the primary concern is to increase the network's security without introducing significant management complexity, which of the following strategies should the CISO consider implementing?

group of answer choices

Replace all NGFWs with UTM devices

Deploy UTM devices alongside the NGFWs$,$ with both sets of devices fully active

Switch off NGFWs and deploy UTM devices, but only activate UTM when detecting a threat

Implement UTM devices internally and maintain NGFWs at network boundarie