_____ means the infrastructure has built-in component redundancy and ______ means that resources dynamically adjust to increases or decreases in capacity requirements.

The concept of fault tolerance refers to a system's capability to continue operating properly in the event of a failure of some of its components. This means that the infrastructure includes redundancy, allowing it to maintain functionality even when certain parts fail. For example, using multiple servers or data center locations ensures that if one server goes down, others can take over, thus minimizing downtime and maintaining service availability.

The term "elastic and scalable" pertains to the infrastructure's ability to dynamically adjust resources based on demand. Elasticity allows for the automatic adjustment of resources, such as adding or reducing server capacity, in response to real-time changes in usage. This means that during peak times when there is high demand, extra resources can be provisioned seamlessly, and when demand decreases, resources can be scaled down to save costs.

Combining these two ideas, the chosen answer accurately defines fault tolerance as having built-in redundancy to handle component failures, while also recognizing that elasticity allows for the system to automatically adjust to varying capacity requirements. This is essential for maintaining performance and efficiency in cloud environments.