Introduction to SD-WAN Quiz Answers 1. What does SD-WAN primarily utilize to manage network traffic? A. Dedicated leased lines B. Hardware-based routers C. Static routing tables D. Software-driven policies Answer: Software-driven policies (D) SD-WAN employs software to manage and control network traffic, contrasting with traditional hardware-based methods. 2. Which of the following is a key feature of SD-WAN? A. Static routing optimization B. Limited visibility into network traffic C. Centralized control D. Peripheral device management Answer: Centralized control (C) Centralized control in SD-WAN allows for easier policy enforcement and optimization of network connections. 3. How does SD-WAN ensure optimal performance for critical applications? A. Through application-specific hardware appliances B. Using fixed routing paths C. Via application-aware routing D. By employing bandwidth throttling Answer: Via application-aware routing (C) Application-aware routing enables SD-WAN to prioritize and optimize traffic for specific applications. 4. What role does the SD-WAN controller play in the network? A. It serves as a hardware switch. B. It functions as the network's data storage. C. It manages network connections and policies centrally. D. It is responsible for manual routing adjustments. Answer: It manages network connections and policies centrally. (C) The SD-WAN controller acts as the central brain of the SD-WAN system, overseeing network connections and policies. 5. In what way does SD-WAN contribute to cost optimization? A. By requiring annual maintenance contracts for hardware. B. By implementing monthly service fees for all connections. C. By mandating the use of expensive leased lines only. D. By dynamically choosing the most cost-effective connections. Answer: By dynamically choosing the most cost-effective connections. (D) SD-WAN helps reduce WAN costs by selecting optimal connections based on cost and performance metrics. 6. What is a benefit of improved network visibility provided by SDWAN solutions? A. Enhanced visibility into network traffic for better troubleshooting. B. Automatic resetting of devices to improve performance. C. Minimized dependency on network management tools. D. Reduced need for performance monitoring. Answer: Enhanced visibility into network traffic for better troubleshooting. (A) Enhanced visibility into network traffic helps administrators troubleshoot issues and monitor performance effectively. 7. Which of the following statements is true about dynamic routing in SD-WAN? A. It requires manual reconfiguration of routing paths. B. It is restricted to a single type of network connection. C. It decreases the overall network performance. D. It automatically adjusts routing based on real-time conditions. Answer: It automatically adjusts routing based on real-time conditions. (D) Dynamic routing in SD-WAN allows for automatic adjustments to routing paths based on current bandwidth and latency conditions. 8. What aspect of security does SD-WAN enhance? A. It eliminates the need for security features. B. It restricts access to specific network applications only. C. It employs security measures to protect sensitive data. D. It relies solely on traditional firewalls. Answer: It employs security measures to protect sensitive data. (C) SD-WAN employs various security features to safeguard sensitive data and connections from potential threats. 9. What is a significant benefit of SD-WAN compared to traditional WAN? A. Increased capital expenses B. Centralized control C. Lack of integration with existing infrastructure D. Reliance on fixed connections Answer: Centralized control (B) SD-WAN offers centralized management, unlike traditional WANs that can be more fragmented. 10. Which challenge is associated with SD-WAN regarding deployment? A. Scalability of connections B. Overly simple management C. Unexpectedly low costs D. Vendor compatibility issues Answer: Scalability of connections (A) Scalability must be considered to ensure SD-WAN can grow with the network demands. 11. What issue may arise from vendor lock-in in SD-WAN solutions? A. Greater ease in switching providers B. Lack of support from multiple vendors C. Challenges in maintaining existing infrastructure D. Increased flexibility in connections Answer: Challenges in maintaining existing infrastructure (C) Vendor lock-in can complicate the integration and support of existing network setups. 12. How does SD-WAN improve access to cloud-based applications? A. Through optimizing various connection types B. Reducing the number of connections used C. By eliminating the need for security considerations D. By utilizing only private connections Answer: Through optimizing various connection types (A) SD-WAN optimizes the performance of cloud applications by combining multiple connection types. 13. What critical element is essential for a successful SD-WAN deployment? A. Avoiding integration with existing networks B. Basic management capabilities C. Robust planning and design D. Random vendor selection Answer: Robust planning and design (C) Careful planning and network design are critical to ensure successful deployment of SD-WAN. 14. What security aspect must be implemented throughout the SDWAN? A. Strictly following MPLS protocols B. Well-defined security policies C. Complex policies with no exceptions D. Ensuring scalability over security Answer: Well-defined security policies (B) Well-defined security policies are crucial for protecting the network in an SDWAN environment. 15. Which of the following describes a primary use case for SD-WAN? A. Disaster recovery support B. Accessing only on-premises applications C. Only connecting central offices D. Limiting remote office connectivity Answer: Disaster recovery support (A) SD-WAN can enhance disaster recovery solutions by utilizing multiple network connections. 16. What is a notable complexity when managing security in an SDWAN? A. Simplistic monitoring tools B. Diverse connection types requiring attention C. Uniform security across all connections D. Reliable static configurations Answer: Diverse connection types requiring attention (B) Ensuring security across various types of connections in SD-WAN can be quite complex.