Designing Cisco Network Service Architectures 300-320 ARCH exam is for Cisco CCDP certification, which also requires to pass 300-101 ROUTE and 300-115 SWITCH exams. Cisco 300-320 ARCH exam tests your knowledge of the latest development in network design and technologies, including L2 and L3 infrastructures for the enterprise, WAN technologies, data center integration, network security and network