Top 25 SD-WAN Training MCQs for Exam Success and Practical Skills

Software-Defined Wide Area Networks (SD-WAN) are revolutionizing how organizations manage remote connections—optimizing performance, cost, and security. To sharpen your knowledge, here are 25 essential MCQs on SD-WAN technology—including architecture, policies, deployment, and more.

SD-WAN MCQs (with Answers)

1. What does SD-WAN stand for?
   
   

• A) Software-Driven WAN
  
  

• B) Software-Defined Wide Area Network
  
  

• C) Secure Data WAN
  
  

• D) Service-Defined WAN
  Answer: B) Software-Defined Wide Area Network
  
  

2. SD-WAN primarily separates which two planes?
   
   

• A) Data and Storage
  
  

• B) Control and Policy
  
  

• C) Data and Control
  
  

• D) Application and Network
  Answer: C) Data and Control
  
  

3. Which component provides centralized orchestration in Cisco SD-WAN?
   
   

• A) vSmart
  
  

• B) vBond
  
  

• C) vEdge
  
  

• D) vManage
  Answer: D) vManage
  
  

4. What protocol carries routing and policy information in Cisco SD-WAN?
   
   

• A) BGP
  
  

• B) OMP
  
  

• C) OSPF
  
  

• D) RIP
  Answer: B) OMP (Overlay Management Protocol)
  
  

5. Which SD-WAN feature determines the best path based on application requirements?
   
   

• A) AppQoE
  
  

• B) vBond
  
  

• C) TLOC
  
  

• D) DIA
  Answer: A) AppQoE (Application Quality of Experience)
  
  

6. What does DIA stand for in SD-WAN?
   
   

• A) Data Internal Access
  
  

• B) Direct Internet Access
  
  

• C) Dynamic IP Allocation
  
  

• D) Domain Interconnect Access
  Answer: B) Direct Internet Access
  
  

7. Zero-Touch Provisioning (ZTP) in SD-WAN simplifies which process?
   
   

• A) Security Configuration
  
  

• B) Device Onboarding
  
  

• C) Policy Implementation
  
  

• D) Traffic Monitoring
  Answer: B) Device Onboarding
  
  

8. What does TLOC represent in SD-WAN?
   
   

• A) Transport Location
  
  

• B) Topology Locator
  
  

• C) Traffic Log Control
  
  

• D) Tunnel Locator
  Answer: A) Transport Location
  
  

9. SD-WAN enables segmentation through which concept?
   
   

• A) VLANs
  
  

• B) VPNs
  
  

• C) IPsec Groups
  
  

• D) Subnets
  Answer: B) VPNs (Virtual Private Networks)
  
  

10. Which SD-WAN policy handles traffic path selection?
    
    

• A) Control Policy
  
  

• B) Device Policy
  
  

• C) Central Policy
  
  

• D) Profile Policy
  Answer: A) Control Policy
  
  

11. Which policy type manages traffic behavior like QoS?
    
    

• A) Data Policy
  
  

• B) Control Policy
  
  

• C) Security Policy
  
  

• D) Access Policy
  Answer: A) Data Policy
  
  

12. App-Aware Routing in SD-WAN prioritizes path based on:
    
    

• A) Routing Metrics Only
  
  

• B) Application Type
  
  

• C) Device Location
  
  

• D) Security Level
  Answer: B) Application Type
  
  

13. Which SD-WAN element handles WAN edge connectivity?
    
    

• A) vManage
  
  

• B) vBond
  
  

• C) vEdge
  
  

• D) vSmart
  Answer: C) vEdge
  
  

14. In Cisco SD-WAN, vBond’s purpose is to:
    
    

• A) Create Data Policies
  
  

• B) Orchestrate Authentication of New Devices
  
  

• C) Manage Routing Topologies
  
  

• D) Backup Configurations
  Answer: B) Orchestrate Authentication of New Devices
  
  

15. What advantage does SD-WAN offer over legacy WAN?
    
    

• A) Fixed MPLS routing
  
  

• B) Centralized policy control
  
  

• C) Manual configurations
  
  

• D) Higher latency
  Answer: B) Centralized policy control
  
  

16. Which platform offers APIs for managing SD-WAN?
    
    

• A) vSmart
  
  

• B) vBond
  
  

• C) vManage
  
  

• D) vEdge
  Answer: C) vManage (via RESTful API)
  
  

17. SD-WAN ensures secure communication using:
    
    

• A) VPN only
  
  

• B) IPsec encryption
  
  

• C) HTTP
  
  

• D) Plain traffic
  Answer: B) IPsec encryption
  
  

18. Dynamic path selection in SD-WAN is based on:
    
    

• A) Bandwidth only
  
  

• B) Latency only
  
  

• C) SLA Metrics
  
  

• D) Device types
  Answer: C) SLA Metrics
  
  

19. Overlay routing in SD-WAN traverses:
    
    

• A) Manual MPLS paths
  
  

• B) Virtual tunnels
  
  

• C) Direct Point-to-Point links
  
  

• D) Internal LAN only
  Answer: B) Virtual tunnels
  
  

20. Application-aware firewall functions are part of:
    
    

• A) Control Plane
  
  

• B) Data Plane
  
  

• C) Management Plane
  
  

• D) Device Plane
  Answer: B) Data Plane
  
  

21. SD-WAN enhances SLA compliance by optimizing:
    
    

• A) Routes for internal IT only
  
  

• B) Paths for critical apps
  
  

• C) QoS only
  
  

• D) Device performance
  Answer: B) Paths for critical apps
  
  

22. What is the main goal of SD-WAN policies?
    
    

• A) Increase hardware costs
  
  

• B) Centralize routing
  
  

• C) Improve flexibility & efficiency
  
  

• D) Remove security
  Answer: C) Improve flexibility & efficiency
  
  

23. Multi-region SD-WAN fabric helps with:
    
    

• A) Local traffic only
  
  

• B) Global scalability
  
  

• C) Reducing device count
  
  

• D) Slower routing
  Answer: B) Global scalability
  
  

24. Segmenting traffic securely in SD-WAN is done through:
    
    

• A) VLANs only
  
  

• B) VPN topologies
  
  

• C) Static IPs
  
  

• D) DNS Zones
  Answer: B) VPN topologies
  
  

25. Monitoring SD-WAN performance is typically done via:
    
    

• A) Device logs only
  
  

• B) vManage dashboards
  
  

• C) Offline reports
  
  

• D) Third-party only
  Answer: B) vManage dashboards

Final Thoughts

These 25 MCQs on SD-WAN not only test foundational knowledge but also reinforce real-world concepts like policy design, secure overlays, and SLA optimizations. Practicing them will prepare you well for professional certifications and understanding modern network architectures. With TrainingX’s industry-focused SD-WAN training, you can master advanced networking skills, gain hands-on experience, and accelerate your career growth. Enroll now and take the first step toward becoming a certified SD-WAN professional.