Hi,
Greetings.
Please look at juniper jobs and requirements to prepare what they are looking for. Then search youtube videos about these topics.
Check JNCIA, JNCIS course topics and then read the concepts.
All the very best..
https://www.google.com/search?q=junos+career&oq=junos+career&aqs=chrome..69i57j69i60.5125j0j8&sourceid=chrome&ie=UTF-8&ibp=htl;jobs&sa=X&ved=2ahUKEwjomvK3h4TpAhXUv54KHSViAagQp4wCMAF6BAgNEAE#htidocid=VovprgAo3XcWmSJTAAAAAA%3D%3D&sxsrf=ALeKk00X7DmdKvtv4UbcBSjKKFrdl1jpNg:1587834225734
Sample requirements for Test position.
Minimum Qualifications • M.S. in Computer Engineering or or a BS in CS/EE with 3 years of experience. • Excellent programming skills in Python/Shell. • Good grasp on TCP/IP, Routing/Switching. • Familiar with LINUX/VM environments • Outstanding problem solving skills in the diagnosis and resolution of customer issues • Excellent communication skills, both verbal and written • The candidate must be a self-starter, proactive and able to handle multiple tasks
Preferred Qualifications •
CCNA/CCNP/JNCIA/JNCIS Certification •
Familiar with ROBOT Test framework • Experience in various test methodologies - white box, black box, solution testing