Which two MongoDB-specific prerequisites must be satisfied before database registration?

MongoDB registration requires the database tools to be available to NDB and placed in the expected MongoDB software-home layout. Nutanix instructs administrators to download and extract the MongoDB tools, then copy or extract them into the bin directory under the software home specified during registration. Accordingly, both B and D describe required preparation. Installing MongoDB through YUM or DNF is not the required approach; Nutanix states that package-manager installation is not recommended and prevents NDB-managed patching in relevant workflows. The requiretty setting must be disabled or absent for NDB sudo automation, so an option stating that it must be enabled reverses the requirement. With the tools and binaries in the software-home bin path, NDB can discover and execute the utilities needed to manage the registered server. These requirements are documented under MongoDB Prerequisites.