What Is F5-CA?

What F5-CA Actually Is

F5-CA stands for F5 Certified Administrator, BIG-IP, the entry-level administrator credential in F5's certification program for the BIG-IP platform. It is issued by F5 and verifies that a candidate can install, configure, operate, and troubleshoot BIG-IP systems in day-to-day production work. If you have seen the acronym attached to other credentials elsewhere, set those aside: this page is exclusively about the F5 BIG-IP administrator credential, and everything below comes from F5's own exam blueprint (identifier F5-CAB.0425) and its support documentation.

The most important structural fact is that F5-CA is not a single exam. It is awarded after you pass five separately assessed exams, named F5CAB1 through F5CAB5. There is no combined initial credential examination, so the "exam" many people picture, one sitting with a pooled score, does not exist for this credential. If you want the naming and terminology covered from several angles, our related explainers on the F5-CA meaning and what F5-CA stands for go through the acronym in more detail.

The Five Exams Behind the Credential

The five exams map directly to the five official domains in the blueprint. They are best understood as five separately assessed exams, not five percentage-weighted sections of one sitting. F5 does not publish percentage weights or name a highest-weighted area, and the blueprint's examples are illustrative rather than exhaustive. Be cautious of third-party sites that quote domain percentages; those figures are editorial estimates, not F5 data. For a deeper walkthrough, see our complete guide to all five F5-CA content areas.

The pairing of Domain 2 and Domain 3 is worth noting. One tests whether you understand how the data plane works; the other tests whether you can configure it. Candidates who rely on memorized click paths often struggle with the concepts exam, while candidates who only read theory stumble on configuration scenarios. Each domain assumes practical BIG-IP competence rather than pure recall.

Question Style and Exam Format

Each current F5CAB exam has 30 multiple-choice questions and a 30-minute time limit, which works out to roughly one minute per question. That pace rewards candidates who can recognize a scenario quickly, so slow, deliberate reasoning about unfamiliar features is a liability.

Two format details deserve attention:

• Some questions require two choices. F5 staff confirmed this in the production launch announcement and an April 28, 2025 clarification. Read each stem for an instruction to select two answers before you commit. F5's partial-credit handling for these items has not been verified, so assume you need both correct.
• Closed book, English only. Under the F5 Certified Candidate Agreement, books, notes, and personal electronic devices are prohibited. At a test center, notes may be made only on writing materials supplied for that purpose.

Whether the exams are adaptive, whether a calculator is provided, and how many items are unscored have not been verified, so avoid planning around assumptions about any of them. Practice sets that mirror a 30-question, 30-minute structure for each exam individually are a better rehearsal than a single long mixed test. You can try that style of timed practice on our F5-CA practice test site.

Fees, Registration, and Delivery Options

Registration starts by joining F5's certification program and accepting the candidate agreement. F5 specifies no formal degree, fixed years of experience, mandatory training hours, or references. That does not make the exams easy: practical BIG-IP competence is expected, and our breakdown of F5-CA eligibility and prerequisites covers what that means in practice.

F5 publishes no member versus nonmember price split. These totals exclude retakes and preparation costs, and F5 updates its price list periodically, so confirm current figures before booking. Because you pay per exam, a failed attempt costs only the fee for that single exam rather than the whole credential. Our F5-CA certification cost breakdown walks through budgeting scenarios, including retakes.

Retake Waits: A Genuine Conflict in F5's Own Documents

Current catalog pages list retake waits of 15, 30, and 45 days after the first three failures. After that, F5's documents disagree. The catalog describes one year after a fourth failure and 90 days after fifth and later failures, while the July 2025 candidate agreement describes up to 90 days or the release of a new exam version, whichever is shorter, after the fourth failure, and requires prerequisite exams to be retaken. Because this conflict is unresolved, do not rely on a single stated rule. Check F5's current policy at the time you fail, and treat early attempts as precious.

Scaled Scoring Explained

The passing score is 245 on F5's 100-350 scaled-score range, applied to each exam. A scaled score is not the same as a percentage of questions answered correctly, and F5 does not publish a "70% correct" requirement. Scaling exists so that results remain comparable when different exam forms vary slightly in difficulty. For the full explanation, read our guide to the F5-CA passing score.

The Old 101/201 Route and Who It Still Affects

Before the current structure, F5 certified BIG-IP administrators through Exam 101 followed by Exam 201. F5's formal route change took effect May 1, 2025, though the five new exams were already announced as live and schedulable on April 23. Exam 101 retired April 30, 2025.

The practical consequences are narrower than many sites suggest:

• New candidates should plan for the five-exam route. The 101/201 path is not a fresh route for anyone starting now.
• Qualifying holders of a 101 pass retain their 24-month eligibility window to complete Exam 201. So it is incorrect to say 201 is universally unavailable.
• Legacy study material may overlap with the new blueprint, but nobody should assume full alignment without checking objective by objective.

Some competitor pages contradict themselves on this point, describing 201 both as retired and as still available to existing candidates. When in doubt, consult F5's own transition notice rather than a reseller's summary.

Who Needs This Credential and Where It Fits

BIG-IP is application delivery infrastructure, so the credential is most relevant to people who run, support, or secure it. Typical audiences include network engineers, application delivery and load balancing administrators, systems and infrastructure engineers who inherit BIG-IP in their environments, and support or operations staff who respond when a virtual server misbehaves. Organizations that deploy BIG-IP, along with the integrators and managed service providers who support them, are the natural employers. Our F5-CA jobs overview looks at role types in more detail.

Two honest caveats apply. First, no credential-specific salary survey exists, and general networking or company salary estimates do not measure a pay premium attributable to this certification. Our salary analysis and ROI discussion treat this carefully. Second, if you are weighing it against a broader networking certification, remember they test different things: a general networking credential covers routing and switching fundamentals across vendors, while F5-CA is specifically about administering one vendor's application delivery platform. Many engineers hold both.

Validity and Renewal

The credential is valid for two years, counted from the final required passing exam that awards it. F5's renewal policy offers two routes:

• Pass F5CABR, a separate renewal exam with 50 questions and a 60-minute limit, using the same 245 passing score. It costs US$100 online or US$130 at a test center and is open to previous holders, including those whose credential is inactive or expired, regardless of when it expired.
• Achieve or renew a higher F5 certification that lists F5-CA as a prerequisite. Passing an intermediate exam alone does not establish renewal; you must achieve or renew the qualifying credential itself.

F5 publishes no continuing-education credit route. An older transition page mentioned retaking all five CAB exams, but the latest renewal page lists the F5CABR and higher-credential routes, so follow the current policy.

Sequencing Your Preparation

F5 permits you to take the five exams in any order, but permission is not a study strategy. F5 also does not create or maintain official study guides; it points candidates to the blueprint, its preparation resources, and hands-on experience, and a course alone is not described as sufficient. A sensible editorial order follows the logic of the platform itself. Our full F5-CA study guide expands on this, and the cheat sheet works well for final review.

The reasoning: troubleshooting is easiest after you have configured enough to know what "normal" looks like, and concepts make configuration far less mechanical. This is a recommendation, not an F5 requirement. If your job already exercises one area daily, move that exam earlier and bank an early pass. For perspective on effort, our difficulty guide is a useful companion, and timing logistics are covered in F5-CA exam scheduling.

Frequently Asked Questions