VMware Certified Professional - Data Center Virtualization (VCP-DCV) Practice Exam

To set a non-default isolation address of 192.168.1.2 for High Availability, which advanced setting is required?

1. Das.isolationaddress0=192.168.1.2

2. Das.useisolationaddress0=192.168.1.2

3. Das.defaultisolationaddress0=192.168.1.2

4. Das.haisolationaddress0=192.168.1.2

The correct answer is: Das.isolationaddress0=192.168.1.2

The correct setting for configuring a non-default isolation address for High Availability is Das.isolationaddress0=192.168.1.2. This advanced setting specifically directs the VMware HA (High Availability) feature to utilize the IP address specified (192.168.1.2) for isolation scenarios, which is critical in determining whether a host has lost network connectivity with the rest of the cluster. This setting operates under the principle that an HA cluster uses certain network paths to monitor hosts and ensure that VM workloads remain available. The isolation address is a designated IP that HA can ping to check the health of the host. If a host becomes isolated but can still reach this address, it indicates that the issue may not be with the network path to other cluster nodes. By specifying Das.isolationaddress0, you are actively defining the specific IP that HA will use in its checks, allowing for customized configurations that may cater to specific network architectures or fault-tolerance strategies in your data center environment. This advanced setting ensures that you can tailor the isolation address to match your infrastructure, enhancing reliability and improving the management of high availability for virtualized workloads.