Your network contains an on-premises Active Directory Domain Services (AD DS) domain. The domain contains two virtual machines named VM1 and VM2 that run Windows Server. You plan to implement a failov

Network Load Balancing (NLB) is used for distributing client requests across multiple servers and is not typically used for providing floating IP addresses for backend failover cluster services.

The Multipoint Services role allows multiple users to share a single computer, which is unrelated to failover clustering or floating IP addresses.

The Network Controller role is a central point of automation that enables the deployment and management of network infrastructure, including Software Defined Networking (SDN) components like SLB, which is crucial for managing floating IP addresses in a clustered environment.

The Host Guardian Service role is used for enabling guarded hosts and shielded virtual machines, focusing on security and trust, not network load balancing or floating IP addresses for a failover cluster.

Software Load Balancer (SLB) is an SDN component that distributes network traffic to virtual machines or services, providing floating IP addresses that can move between cluster nodes, thereby ensuring high availability and external accessibility for clustered applications.