Below are the Devops Tools used Widely
The best DevOps tools for 2020
Hence The Correct Answer is c) Liebert MPX
Libert MPX tool is not associated With Devops.
Libert MPX is the first truly adaptive rack power distribution unit, the Liebert MPX offers the advanced capabilities IT and data center managers need to manage increasingly complex connected loads throughout their facilities. Users can reconfigure input power and swap out receptacle modules as their IT equipment power requirements and plug types evolve.
Hence Chef, Puppet and Juju are associated with Devops while Libert MPX is not associated with DevOps.