Theprimary purpose of load balancers in cloud networkingis todistribute incoming network traffic across multiple servers, thereby:
* Ensuring Availability:By balancing traffic, load balancers prevent server overload and ensure high availability.
* Performance Optimization:Evenly distributing traffic reduces response time and improves user experience.
* Fault Tolerance:If one server fails, the load balancer redirects traffic to healthy servers, maintaining service continuity.
* Scalability:Automatically adjusts to traffic changes by adding or removing servers as needed.
* Use Cases:Commonly used forweb applications, databases, and microservicesin cloud environments.
Other options analysis:
* B. Optimizing database queries:Managed at the database level, not by load balancers.
* C. Monitoring network traffic:Load balancers do not primarily monitor but distribute traffic.
* D. Load testing applications:Load balancers do not perform testing; they manage live traffic.
CCOA Official Review Manual, 1st Edition References:
* Chapter 4: Network Traffic Management:Discusses the role of load balancers in cloud environments.
* Chapter 7: High Availability and Load Balancing:Explains how load balancers enhance system resilience.