"There are only 35,000 CCIE R&S Certified engineers globally and nearly 300,000 IT Networking Industry experts required." With the advancements in technology, networking is a booming field. Cisco certification is a must if you want to take advantage of the many job opportunities in Networking. The Cisco certification is a highly respected and widely accepted credential. After becoming CCIE certified, your doors to big MNCs will be opened. There are eight tracks to CCIE certification. Routing and switching, security, and voice/collaboration are the most popular. However, many Cisco aspirants make the biggest mistake of enrolling with any organization. Only Cisco authorized Training Institutes are allowed. Although you can still get a job after completing CCIE training, you will need to have a solid understanding of networking. CCIE R&S Certification at a glanceThe CCIE R&S certification consists of three levels: CCNA (initial), CCNP (initial), and CCIE. CCNA, which is the initial or associate level certification, is followed by CCNP, which is the professional level exam. CCIE is the last and the expert level examination.Prerequisites for taking CCIE R&S examination are - Having CCNA & CCNP R&S knowledge, so anyone interested in the field of networking or willing to make a career in networking can take up the examination after the same. Check here for more details - You need to qualify CCNA examination for going up to CCNP level. If your goal is CCIE, you don't need to take the CCNA or CCNP exams. You must study both CCNA/CCNP levels, but not their exams for CCIE. Details of the CCIE R&S exam: The written exam is two hours long and the candidate must answer 90 to 110 questions. Written skills in planning, configuring and troubleshooting complex network systems will be tested. The CCIE R&S lab exam is eight hours long. After passing the CCIE R&S writing examination, you can pass your lab examination in three years. You must take the first attempt within 18 months of passing the written exam. You must take the lab examination within 18 months of passing the written exam. The Cisco certification is valid for three year and professionals must take a recertification exam after that time. Cisco offers recertification exams to ensure that IT professionals are up-to-date with the latest technology. Recertification is a simple exam that only asks questions about the latest technology. Download PDF to learn more about Cisco CCIE R&S Certification & Training.