Istio Certified Associate (ICA): exam, cost and domains
The Istio Certified Associate (ICA) is the Linux Foundation and CNCF certification for the Istio service mesh. The exam is an online, proctored, hands-on test of 15–20 tasks in 2 hours on Istio v1.29. It costs $250 including one free retake, you need 68% to pass, there are no prerequisites, and the certification is valid for 2 years. The exam now follows a new curriculum.
- Certification
- Istio Certified Associate (ICA), from the Linux Foundation and CNCFLinux Foundation Education and CNCF, checked 14 October 2026
- Status
- Active; the exam has changed and is tested on the new curriculumLinux Foundation Education, checked 14 October 2026
- Exam cost
- $250, including one free retakeCNCF ICA page, checked 14 October 2026
- Format
- Online, proctored; 15–20 performance-based tasks on the Linux command lineLinux Foundation Important Instructions: ICA, checked 14 October 2026
- Duration
- 120 minutesLinux Foundation FAQ: ICA, checked 14 October 2026
- Passing score
- 68%Linux Foundation FAQ: ICA, checked 14 October 2026
- Istio version
- Istio v1.29Linux Foundation Important Instructions: ICA, checked 14 October 2026
- Prerequisites
- None; rated intermediateLinux Foundation Education, checked 14 October 2026
- Languages
- English, Simplified Chinese, JapaneseLinux Foundation FAQ: ICA, checked 14 October 2026
- Validity
- 2 years; renew by passing the exam again before expiryLinux Foundation FAQ: ICA, checked 14 October 2026
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Why you can trust these ICA questions
What is the Istio Certified Associate?
The Istio Certified Associate, or ICA, is a certification offered by the Linux Foundation together with the Cloud Native Computing Foundation (CNCF). CNCF says the exam demonstrates a solid understanding of Istio principles, terminology and best practices, and calls it a pre-professional certification designed for engineers, CI/CD practitioners and anyone with a special interest in Istio.
Istio is the open source service mesh for Kubernetes: it handles traffic routing, mutual TLS and authorization between services, and gives you visibility into how they talk to each other. The ICA checks that you can install, configure, secure and troubleshoot it on a real cluster.
The Linux Foundation rates the exam at intermediate level, even though the name says associate. That matches the format: the ICA is a hands-on exam, not a vocabulary test.
Source: CNCF — Istio Certified Associate (ICA). Checked 14 October 2026.
The ICA exam has changed: new curriculum
The Linux Foundation’s ICA page carries a notice that the ICA exam has changed and that all exams are now tested on the new curriculum. The current domains include installing Istio in sidecar or ambient mode and canary or in-place upgrades, alongside traffic management, security and troubleshooting.
If you studied from material written for an earlier version of the exam, compare it with the current domain list below before you book. In particular, check that it covers ambient mode and canary and in-place upgrades, which the current list names explicitly.
Source: Linux Foundation Education — Istio Certified Associate (ICA). Checked 14 October 2026.
How much does the Istio Certified Associate exam cost?
The ICA exam costs $250. CNCF states that this includes one free retake, so if you fail the first attempt you can try again without paying a second time.
The Linux Foundation also offers two bundles: the exam with its Istio Service Mesh Essentials course (LFS245) for $299, and the exam with a THRIVE-ONE annual subscription to its e-learning catalogue for $495.
After purchase you have 12 months of exam eligibility in which to schedule and sit the exam, including the retake.
Source: Linux Foundation Education — Istio Certified Associate (ICA). Checked 14 October 2026.
ICA exam format
According to the Linux Foundation’s exam instructions, the ICA consists of 15 to 20 performance-based tasks that you solve on the Linux command line, and you have 2 hours to complete them. The environment currently runs Istio v1.29. CNCF describes the exam the same way, as a set of performance-based problems solved in a command line; the Linux Foundation’s product page labels it performance-based and multiple-choice, so expect hands-on work as the core.
The exam is online and proctored on PSI’s Bridge platform with the PSI Secure Browser. Tasks are available in English, Simplified Chinese and Japanese, and no other applications or browser windows may be open apart from the exam.
Exams are scored automatically, and the Linux Foundation sends the score report by email within 24 hours of completion.
Source: Linux Foundation — Important Instructions: ICA. Checked 14 October 2026.
What is the ICA passing score?
The Linux Foundation’s ICA FAQ states that a score of 68% or above must be earned to pass. Because tasks are checked on the cluster, partial configuration does not help much: a VirtualService that routes almost correctly still sends traffic to the wrong place.
With 15 to 20 tasks in 120 minutes, you have six to eight minutes per task on average. Skip a task that stalls you and come back to it, rather than letting one stubborn problem eat the time for three others.
Source: Linux Foundation — Frequently Asked Questions: ICA. Checked 14 October 2026.
What is on the Istio Certified Associate exam?
The Linux Foundation publishes four domains with fixed weights, and CNCF has open-sourced the curriculum the exam is built on. Traffic management is the largest domain by far at 35%, so routing, traffic shifting, resilience features and fault injection deserve the most practice time.
- Installation, Upgrade & Configuration — 20%: installing Istio with istioctl or Helm, sidecar or ambient mode, customising the installation, canary and in-place upgrades
- Traffic Management — 35%: ingress and egress, routing within the mesh, destination rules, traffic shifting, connecting to external workloads, circuit breaking, failover, outlier detection, timeouts, retries, fault injection
- Securing Workloads — 25%: authorization, authentication with mTLS and JWT, securing edge traffic with TLS
- Troubleshooting — 20%: troubleshooting configuration, the mesh control plane and the mesh data plane
Source: Linux Foundation Education — Istio Certified Associate (ICA). Checked 14 October 2026.
Istio certification prerequisites
There are no prerequisites for the ICA. You do not need a Kubernetes certification first, and the Linux Foundation lists no experience requirement.
In practice, every task happens on Kubernetes, so you should already be at home with kubectl, namespaces, deployments and services. If those still slow you down, they will cost you time that the Istio tasks need.
Source: Linux Foundation Education — Istio Certified Associate (ICA). Checked 14 October 2026.
How long is the ICA certification valid?
ICA certifications are valid for 2 years. The Linux Foundation’s FAQ states that you renew by retaking and passing the exam, and that renewal must be completed before the expiration date.
Because the Linux Foundation can change the curriculum, as it has now, plan a renewal attempt as a fresh exam on whatever version is current at the time, not as a repeat of the one you passed.
Source: Linux Foundation — Frequently Asked Questions: ICA. Checked 14 October 2026.
Official ICA training and exam rules
The Linux Foundation’s own course for this certification is Istio Service Mesh Essentials (LFS245), sold together with the exam for $299. The open-sourced CNCF curriculum is the free reference for scope, and the Istio documentation covers every feature the domains name.
On shortcuts: the Linux Foundation’s certification agreement prohibits disclosing, publishing or transmitting any exam content and names disseminating actual exam content, including web postings, as misconduct. Sanctions include revoking any certifications you have earned and barring you from future Linux Foundation exams. Leaked answers are of little use on a hands-on exam anyway, because the result is read from the cluster you configured.
Source: Linux Foundation — Global Certification and Confidentiality Agreement. Checked 14 October 2026.
Istio Certified Associate practice questions
Certsqill’s ICA practice questions are expert-developed and follow the four official domains of the current curriculum. Every answer option comes with an explanation, and your readiness score is broken down per domain, so you can see whether traffic management — the 35% domain — is holding you back.
For a hands-on exam, use them alongside lab work: they check that you know which Istio resource and field a task needs before you start writing YAML. Access comes with a 7-day money-back guarantee.
ICA questions people ask
What is the Istio Certified Associate?
A Linux Foundation and CNCF certification that demonstrates a solid understanding of Istio principles, terminology and best practices through hands-on tasks. Checked 14 October 2026.
How much does the ICA exam cost?
$250, including one free retake. Bundles with the LFS245 course ($299) or a THRIVE-ONE subscription ($495) are also offered. Checked 14 October 2026.
How long is the ICA exam?
120 minutes. Source: Linux Foundation FAQ: ICA, checked 14 October 2026.
How many tasks are on the ICA exam?
15 to 20 performance-based tasks. Source: Linux Foundation Important Instructions: ICA, checked 14 October 2026.
What is the ICA passing score?
68% or above. Source: Linux Foundation FAQ: ICA, checked 14 October 2026.
Which Istio version is the ICA exam based on?
Istio v1.29. Source: Linux Foundation Important Instructions: ICA, checked 14 October 2026.
Has the ICA exam changed?
Yes. The Linux Foundation states that the ICA exam has changed and all exams are now tested on the new curriculum. Checked 14 October 2026.
Are there prerequisites for the Istio Certified Associate?
No. The Linux Foundation states there are no prerequisites for this exam. Checked 14 October 2026.
In which languages is the ICA exam available?
English, Simplified Chinese and Japanese. Source: Linux Foundation FAQ: ICA, checked 14 October 2026.
How long is the ICA certification valid?
2 years. You renew by passing the exam again before it expires. Source: Linux Foundation FAQ: ICA, checked 14 October 2026.
