AWS (Amazon Web Services) Certification Practice Exam

What types of storage options are available for EC2 instances?

1. Cloud Storage

2. Ephemeral Storage and Temporal Storage

3. Persistent Storage and Ephemeral Storage

4. Static and Dynamic Storage

The correct answer is: Persistent Storage and Ephemeral Storage

The correct choice emphasizes the two main types of storage options available for Amazon EC2 instances: Persistent Storage and Ephemeral Storage. Persistent Storage refers to options like Amazon Elastic Block Store (EBS) and Amazon S3, where data remains intact even when the instance is stopped or terminated. This is critical for applications that require data durability and long-term storage. EBS volumes are tied to individual EC2 instances but can be detached and reattached, allowing for flexibility in managing storage across different instances. S3 is an object storage service that provides highly durability and scalability, which is essential for storing large amounts of data. Ephemeral Storage, on the other hand, refers to instance store volumes that are physically attached to the host machine and provide temporary storage for the instance. Data stored in ephemeral storage is lost when the instance is stopped or terminated. This type of storage is beneficial for temporary data caching or workloads where speed is more critical than data retention. In contrast, other options do not accurately reflect the primary types of storage associated with EC2 instances. “Cloud Storage” is a general term that doesn’t specify the types available for EC2. “Ephemeral Storage and Temporal Storage” introduces ambiguity, as "Temporal Storage" isn't a recognized term in