Load Balancing: SK0-004 Exam Answer - CompTIA Server+
Question
Which of the following is an example of load balancing?
A.
Round robin B.
Active-active C.
Active-passive D.
Failover.
A.
Reference: https://simplicable.com/new/load-balancing.
Explanations
Which of the following is an example of load balancing?
A.
Round robin
B.
Active-active
C.
Active-passive
D.
Failover.
A.
https://simplicable.com/new/load-balancingLoad balancing is the process of distributing workloads or network traffic across multiple servers or resources to optimize resource utilization, maximize throughput, minimize response time, and prevent overloading of any single resource. This can be achieved through various techniques, including round-robin, active-active, active-passive, and failover.
Round-robin is a load-balancing technique that distributes incoming requests or traffic evenly among a group of resources in a cyclical manner, so that each resource receives an equal share of the workload. For example, if there are three servers in a group, the first request would be sent to server 1, the second to server 2, the third to server 3, and so on in a repeating cycle.
Active-active is a load-balancing technique that involves all resources being active simultaneously and sharing the load. Each resource in the group receives a portion of the incoming traffic, and all resources work together to process the requests. This technique is often used in high-availability environments where maximum uptime is required.
Active-passive is a load-balancing technique that involves only one resource being active at a time, with the others in standby mode, ready to take over in the event of a failure or overload. The active resource processes all incoming traffic, while the passive resources monitor the active resource and are ready to take over if necessary. This technique is often used in disaster recovery scenarios.
Failover is a load-balancing technique that involves a standby resource taking over if the active resource fails. The standby resource remains idle until it is needed, at which point it takes over all the workload of the failed resource. This technique is often used in high-availability environments where downtime must be minimized.
In conclusion, round-robin, active-active, active-passive, and failover are all examples of load balancing techniques. Each technique has its advantages and disadvantages, and the choice of technique depends on the specific requirements of the environment.
