Which of the following is an example of load balancing?Round robinActive-activeActive-passiveFailover

All of the options provided are examples of load balancing.

1. Round Robin: This is one of the simplest methods for distributing client requests across a group of servers. When a request comes in, the round robin algorithm directs it to the next server in the list. The algorithm loops through the list, so when it reaches the end, it starts over at the beginning.

2. Active-Active: This is a load balancing setup where traffic is distributed across multiple servers, all of which are actively handling requests. If one server fails, the others continue to operate and handle the traffic.

3. Active-Passive: This is a setup where one server is actively handling requests (active), while the other is on standby (passive). If the active server fails, the passive server becomes active and starts handling requests.

4. Failover: This is a backup operational mode in which the functions of a system component (such as a processor, server, network, or database) are assumed by secondary system components when the primary component becomes unavailable through either failure or scheduled down time.