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350-401 Practice Question: Which three statements about NFV and its…
Which three statements about NFV and its relationship with SDN are true? (Choose three.)
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
NFV can leverage SDN to dynamically create and manage network paths between VNFs.
NFV and SDN are complementary but independent technologies. NFV focuses on virtualizing network functions, while SDN separates the control and data planes for centralized network control. They can be used together to enhance flexibility and automation. Option A is correct because NFV can use SDN to provide dynamic network connectivity between VNFs. Option B is correct because SDN can provide the network abstraction needed for NFV. Option C is correct because they are independent; one can be deployed without the other. Option D is incorrect because SDN is not a requirement for NFV; NFV can work with traditional networking. Option E is incorrect because NFV does not require SDN for service chaining; it can use other methods like policy-based routing.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
NFV can leverage SDN to dynamically create and manage network paths between VNFs.
Why this is correct
Correct because SDN provides programmable network control, enabling automated connectivity between VNFs.
- ✓
SDN can provide the network abstraction that allows NFV to decouple network functions from underlying hardware.
Why this is correct
Correct because SDN abstracts the network, making it easier to deploy VNFs without manual configuration.
- ✓
NFV and SDN are independent technologies that can be deployed separately or together.
Why this is correct
Correct because NFV focuses on function virtualization, while SDN focuses on network control separation; they are not dependent on each other.
- ✗
SDN is a prerequisite for implementing NFV in any network environment.
Why it's wrong here
Incorrect because NFV can be implemented with traditional networking protocols; SDN is not mandatory.
- ✗
NFV requires SDN to perform service function chaining.
Why it's wrong here
Incorrect because service chaining can be achieved using other methods such as policy-based routing or MPLS; SDN is not a strict requirement.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 350-401 practice question is part of Courseiva's free Cisco certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 350-401 exam.