This comprehensive study guide is designed for aspiring network professionals preparing for the Cisco Certified Network Associate (CCNA) and Cisco Certified Network Professional (CCNP) certifications. It provides an in-depth exploration of network automation and programmability concepts essential for modern networking environments. The book covers critical topics such as Dynamic Host Configuration Protocol (DHCP), Network Address Translation (NAT), Quality of Service (QoS), and practical automation techniques using tools like Ansible and Python.Readers will gain a thorough understanding of how to automate routine network tasks, manage configurations, and deploy services efficiently. The guide emphasizes hands-on examples, configuration scenarios, and troubleshooting tips, ensuring that readers are well-prepared for real-world challenges. Additionally, it highlights best practices for implementing network automation while maintaining security and compliance.With a focus on both theoretical knowledge and practical application, this study guide equips readers with the skills needed to excel in their certification exams and advance their careers in networking. Whether you are a beginner or an experienced IT professional, this book serves as a valuable resource for mastering the complexities of network automation and programmability in today's dynamic IT landscape.