CompTIA Cloud Essentials+ (CLO-002)Management and Technical OperationsEasy
A cloud administrator is tasked with implementing a strategy to automatically adjust the number of virtual machine instances supporting an application based on real-time traffic load. Which of the following concepts BEST describes this requirement?
- AInfrastructure as Code
- BLoad Balancing
- CResource Tagging
- DAuto-scaling
Show answer & explanationAnswer & explanation
Correct answer: D. Auto-scaling
Auto-scaling is the process of automatically adjusting the number of computing resources in response to changes in demand. This directly addresses the requirement to adjust VM instances based on traffic load.
Why the other options are wrong
- A. Infrastructure as Code manages and provisions infrastructure through code, but doesn't inherently provide real-time scaling based on load.
- B. Load balancing distributes incoming network traffic across multiple servers, but doesn't automatically change the number of servers.
- C. Resource tagging is used for organization and cost allocation, not for dynamic resource adjustment.
Auto-scaling
A cloud computing feature that automatically adjusts the number of computing resources in a group based on observed load or a schedule.
- Dynamically adds or removes instances.
- Ensures performance during peak loads.
- Optimizes costs by scaling down during low demand.
Memory trick: Auto-scaling is like a smart thermostat for your cloud, adjusting resources to match the 'temperature' of demand.