Mar 27, 2026 - For details about updated CVE-2025-53521 (BIG-IP APM vulnerability), refer to K000156741.

I’ve Successfully Failed the F5 Certification 201-TMOS Administration Exam

Yup, you read that right. I did not pass the F5 Certified BIG-IP Administrator test I took while at F5 Agility 2017. And I’m not ashamed since it was a challenging test and I will be trying again...
Published Aug 15, 2017
Version 1.0
201-tmos exam
agility17
application delivery
big-ip
certification
PSilva's avatar
Ret. Employee
Technical writer, evangelist, speaker, video host, story teller and overall clever guy. Bringing the slightly theatrical and fairly technical together, I train, write, speak, along with overall evangelism. Highly technical information security professional with social media skills who has also been in such plays as The Glass Menagerie, All’s Well That Ends Well, Cinderella and others.
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Lee_Sutcliffe
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Aug 23, 2017

301b definitely easier than 301a in my book. I failed 301a the first time and wouldn't welcome the prospect of sitting it again. I have also recently taken 301b again to re-certify with hardly any preparation and passed. My theory is, if you're working with the product regularly, you don't need to study for troubleshooting, you just know it. 301a on the other hand requires a lot of preparation.