What is a consideration regarding data protection efficiency when increasing the number of VDCs to an ECS Federation?

Question

Options

• AIncreases the data protection efficiency when added to the replication group
• BHas no effect on data protection efficiency
• CReduces the data protection efficiency when added to the replication group
• DAutomatically optimizes network traffic for all VDCs without additional configuration

• A
  89% (54)
• B
  2% (1)
• C
  7% (4)
• D
  3% (2)

Explanation

Adding more VDCs to an ECS Federation replication group increases data protection efficiency (A) because each additional VDC contributes another geographic or fault-domain copy of the data, expanding the number of nodes across which erasure-coded chunks or replicas are distributed - more spread means greater resilience against simultaneous failures.

Why the distractors are wrong:

• B is wrong because the change is not neutral - the replication group actively benefits from a wider pool of nodes to distribute protection across.
• C is wrong because efficiency goes up, not down; more VDCs give the erasure coding or replication algorithm more placement options, not fewer.
• D is a fabrication - ECS Federation does not automatically optimize network traffic for all VDCs simply by adding them; traffic shaping and network configuration remain separate concerns.

Memory tip: Think of VDCs as "safety nets" - the more nets you add beneath a tightrope, the better protected the walker is. Each VDC is another net, so adding VDCs to the replication group always increases protection, never decreases it.

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