Why Are More Frequent Snapshots or EBS Volumes Faster

question 120

Multiple Choice

Why are more frequent snapshots or EBS Volumes faster?

• A) Blocks in EBS Volumes are allocated lazily, since while logically separated from other EBS Volumes, Volumes often share the same physical hardware. Snapshotting the first time forces full block range allocation, so the second snapshot doesn't need to perform the allocation phase and is faster.
• B) The snapshots are incremental so that only the blocks on the device that have changed after your last snapshot are saved in the new snapshot.
• C) AWS provisions more disk throughput for burst capacity during snapshots if the drive has been pre-warmed by snapshotting and reading all blocks.
• D) The drive is pre-warmed, so block access is more rapid for volumes when every block on the device has already been read at least one time.

Understand the diversity of excretory structures and their functions across different organisms.

Identify the relationships between excretory structures and the animals in which they are found.

Grasp the concept of waste products in animals and their significance.

Connect waste products with their method of excretion and animal types.

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