This module covers essential aspects of SD-WAN, including monitoring, troubleshooting, advanced security, and cloud connectivity. You will begin by exploring network monitoring tools and learning to troubleshoot common control plane connectivity issues. The module will guide you in configuring Quality of Service (QoS) to ensure optimal performance, even on unreliable links, and enhance application quality of experience with advanced techniques such as TCP optimization. Additionally, you will discover how to seamlessly connect branch offices to the internet and cloud providers like AWS, Azure, and Google, using Direct Cloud Access and Cloud OnRamp for SaaS. Finally, the module will help you fortify your network with SD-WAN security features, including application-aware firewalls and intrusion prevention systems. By the end of this module, you will be able to to design, implement, and secure SD-WAN environments.