This exam tests a candidate's knowledge of implementing, verification testing, and maintaining Cisco core and edge technologies, using the IOS XR based router platforms, which include the CRS, ASR 9000, and the XR12000 routers
The Cisco IOS XR Specialist certification is valid for two years. To recertify, pass one of the following before the certification expiration date:
• Re-take and pass all exams for each Specialist certification indicated on the specific certification page. Please note: this includes ALL exams whether refreshed or not, or
• Pass the current CCIE written exam
• Pass the current CCDE written exam or current CCDE Practical Exam
• Pass the CCAr interview and the CCAr board review
Visit Cisco's site for additional recertification information.