A network administrator is tasked with ensuring continuous web service despite individual server outages. Which methodology would allow traffic to be seamlessly managed between redundant servers to prevent downtime during such events?
Configuring a cluster arrangement without implementing a common network identifier for access.
Provision of unique, non-shared identifiers for each server handling the web service.
Employing a rotation scheme within the domain name system for distributing client requests equally.
Setting up a system with a shared network identifier that directs traffic to multiple back-end systems.