CompTIA Cloud+ Practice Test

Which technology allows multiple virtual machines to share resources without performance degradation during peak loads?

1. Hypervisor management

2. Resource allocation

3. Load balancing

4. Cluster management

The correct answer is: Load balancing

Load balancing is the technology that allows multiple virtual machines (VMs) to share resources effectively without performance degradation during peak loads. It does this by distributing workloads evenly across available resources, ensuring that no single VM becomes overloaded while others are underutilized. By dynamically allocating tasks based on resource availability and demand, load balancing optimizes the overall performance of the system. For instance, during high demand periods, load balancers can direct incoming traffic to the VMs that have more capacity to handle additional requests. This technique not only enhances the user experience by maintaining responsiveness but also maximizes resource utilization, as it prevents any single VM from becoming a bottleneck. Other options like hypervisor management, while important for overseeing and controlling VMs, do not inherently address the challenge of resource performance under load. Resource allocation pertains to the distribution of specific resources rather than the broader management of workload distribution. Cluster management involves overseeing a group of interconnected VMs to ensure redundancy and availability but may not directly optimize performance during peak loads as effectively as load balancing does.