Got a couple of questions around this over the last few days and wanted to clear it up. The VCAP4-DCA (Datacenter Administrator) is 100% LAB based. For those who did the VI3 Enterprise Exam it will be similar to the second part of the exam.
In other words you will receive multiple tasks and you will get a full vSphere environment to your disposal including Service Console access, vSphere Client and vCenter. Just get the job done! It could be configuring a Distributed vSwitch or even troubleshooting and solving a problem…
In terms of preparations, make sure you have had enough LAB time. Start using the “esxcfg-” commands and make sure you know where to find what within the vSphere Client.