What are two characteristics of a Software Defined Networking (SDN) solution? (Choose two.)

Question

Options

• AIt allows workloads to be placed and migrated anywhere in the network
• BIt is dependent on the underlying physical routers and switches
• CIt is decoupled from the physical networking infrastructure
• DIt contributes to layer 2 network sprawl
• EIt restricts the placements of virtual machines and containers

• A
  87% (26)
• B
  3% (1)
• D
  7% (2)
• E
  3% (1)

Explanation

A (workload placement/migration) is correct because SDN abstracts network control into software, enabling dynamic workload placement and live migration anywhere across the network without physical reconfiguration. C (decoupled from physical infrastructure) is correct because SDN separates the control plane (software) from the data plane (physical hardware), which is its defining characteristic.

Why the distractors are wrong:

• B is the opposite of SDN's purpose - SDN removes dependency on physical hardware specifics by abstracting control into software.
• D is wrong because SDN reduces complexity and sprawl by centralizing control; it does not cause layer 2 sprawl (that's a problem SDN helps solve).
• E is the opposite of A - SDN increases flexibility for VM and container placement, not restricts it.

Memory tip: Think of SDN as "network as code" - just like software runs on any hardware, SDN decouples network logic from physical devices and enables workloads to move freely. The two correct answers both reflect freedom and flexibility, while the wrong answers describe limitations - if an answer sounds restrictive or hardware-dependent, it's likely wrong for SDN.

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