400-101 CCIE Routing and Switching is written exam for Cisco CCIE Routing and Switching certification. Besides, cisco 400-101 CCIE Routing and Switching free online test is available here.

Cisco Certified Internetwork Expert Routing and Switching (CCIE Routing and Switching) certifies the skills required of expert-level network engineers to plan, operate and troubleshoot complex, converged network infrastructure.

The Cisco CCIE Routing and Switching written exam validate that professionals have the expertise to: configure, validate, and troubleshoot complex enterprise network infrastructure; understand how infrastructure components interoperate; and translate functional requirements into specific device configurations.