The Cisco CCIE® Routing and Switching Written Exam (400‐101) version 5.1 is a 2‐ hour test with 90−110 questions that will 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. The exam is closed book and no outside reference materials are allowed.
The following topics are general guidelines for the content likely to be included on the exam. However, other related topics may also appear on any specific delivery of the exam. In order to better reflect the contents of the exam and for clarity purposes, the guidelines below may  hange at any time without notice.