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400-007 · Question #199
400-007 Question #199: Real Exam Question with Answer & Explanation
The correct answer is B: reduce network configuration complexity. Controller-based SDN solutions centralize network intelligence into a single management plane and automate device configuration, reducing both operational complexity and administrative overhead.
Question
Which two features describe controller-based networking solutions compared to traditional networking solutions? (Choose two.)
Options
- Ainflate licensing costs
- Breduce network configuration complexity
- Cprovide centralization of primary IT functions
- Dallow for fewer network failures
- Eincrease network bandwidth usage
Explanation
Controller-based SDN solutions centralize network intelligence into a single management plane and automate device configuration, reducing both operational complexity and administrative overhead.
Common mistakes.
- A. Controller-based solutions typically reduce licensing costs by enabling hardware abstraction and commodity switching, not inflate them.
- D. Fewer network failures is not a guaranteed or defining characteristic of SDN - failures still occur and SDN can introduce new failure points such as controller unavailability.
- E. SDN does not increase bandwidth usage as a defining characteristic - southbound protocol traffic to devices is minimal and does not significantly impact overall network bandwidth.
Concept tested. Controller-based vs traditional networking characteristics
Reference. https://www.cisco.com/c/en/us/solutions/software-defined-networking/overview.html
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