Chapter 3: Amazon Simple Storage Service and Amazon Glacier Storage

• 1. C. S3 can be used to share files, but it doesn’t offer low-latency access—and its eventual consistency won’t work well with filesystems. Storage Gateway is designed to simplify backing up archives to the AWS cloud; it’s not for sharing files. EBS volumes can be used for only a single instance at a time.
• 2. A. Object metadata contains information used by S3 to manage an object’s security profile, behavior, and the way it’s exposed to client requests. Storing this information requires very little space—2 KB will normally be more than enough.
• 3. D. In theory, at least, there’s no limit to the data you can upload to a single bucket or to all the buckets in your account or to the number of times you upload (using the PUT command). By default, however, you are allowed only 100 S3 buckets per account.
• 4. A. HTTP (web) requests must address the s3.amazon.aws.com domain...