Is the statement "Parallel remediation remediates all hosts that are in maintenance mode in sequence" true or false?

The statement is false. In vSphere, parallel remediation allows for multiple hosts to be remediated simultaneously rather than in sequence. This is particularly advantageous in environments with numerous hosts, as it significantly reduces the overall time required for maintenance and upgrades.

When hosts are placed in maintenance mode, they can be upgraded or patched concurrently, leveraging the capabilities of the vSphere environment to handle multiple processes at once. This approach enhances operational efficiency and ensures minimal downtime during maintenance activities.

The other options suggest scenarios that do not accurately represent how parallel remediation works in vSphere, as it does not limit itself to sequential operations, nor is it dependent on specific infrastructure configurations or version upgrades. The ability to remediate hosts in parallel is a core feature designed to streamline maintenance processes.