CKA exam guide: price, voucher, booking and what it tests

The CKA exam is a two-hour, hands-on Kubernetes administrator exam that costs $445 as of October 2026; the exam-only purchase includes two attempts and two Killer.sh simulator sessions. Take it when you need to show that you can carry out Kubernetes administration work at a command line, rather than only recognise Kubernetes concepts in multiple-choice questions.

This guide covers buying a CKA voucher, booking an online appointment, the exam-day setup and the five weighted domains. It also explains where free official preparation and original practice questions fit, whether the foundational alternative is a better first step, and what happens to the certification after you pass.

CKA exam at a glance

Certified Kubernetes Administrator (CKA) is a live Linux Foundation and CNCF certification for people performing Kubernetes administrator responsibilities. There are no prerequisites, but the format rewards someone who can work through administrator tasks in a live command-line environment. The official CKA page says the current exam is based on Kubernetes v1.37 and tracks new minor releases within about four to eight weeks.

The exam format, as of October 2026, is an online, proctored set of multiple command-line performance tasks completed in two hours through PSI Bridge. The official materials do not publish a live-exam question count, so do not set a study target around a number quoted by an unofficial source.

• Passing score: 66% or above.
• Delivery: online through PSI Bridge; no test-centre delivery is listed.
• Syllabus: Troubleshooting 30%; Cluster Architecture, Installation & Configuration 25%; Services & Networking 20%; Workloads & Scheduling 15%; and Storage 10%.
• Current details: use the official CKA page for the current version and purchase choices.

CKA exam price and what the voucher includes

The CKA exam-only price is $445 as of October 2026. That purchase is your CKA exam voucher: it provides two exam attempts, two Killer.sh simulator sessions, and 12 months of eligibility to schedule and take the exam. Think of the two attempts as part of a single purchase, not as a reason to postpone hands-on practice until the first sitting.

The official materials also list a $625 THRIVE bundle and a $645 LFS258 bundle as of October 2026. Choose a bundle only when its training matches the way you need to learn; the exam-only option is the relevant comparison if you already have a lab and a study plan.

The official English CKA page lists the price in US dollars and does not publish an INR price. In India, the dollar charge and your card's conversion and fees determine the final amount, so check the price at checkout. Linux Foundation discounts run from time to time, but do not plan around a code: offers can change before you buy.

How to buy and book the CKA exam

CKA exam booking is a separate step from buying the voucher. Allow time to choose an appointment that meets the room and identification rules, rather than treating the purchase date as the exam date.

1. Buy the CKA exam or the training bundle you selected through Linux Foundation, using the official CKA purchase path.
2. Sign in to My Portal after your registration and open the scheduling journey for the exam.
3. Schedule the online appointment with PSI Bridge. PSI makes appointments available from one to 90 days ahead, so select a time within that window.
4. Make sure the name on your government photo ID matches the registration details before the appointment. You will need that matching ID for the proctored exam.
5. Take the exam in a private, clear room and complete it within the 12-month eligibility period. Read the official scheduling guidance again if you need to change an appointment.

What happens on exam day

The CKA is an online, remotely proctored exam through PSI Bridge, not a test-centre appointment. Have the matching government photo ID ready and use a private, clear room. Those requirements matter as much as your Kubernetes setup because they determine whether you can begin the session.

The format, as of October 2026, gives you two hours to solve command-line performance tasks. Approach it as operator work under time pressure: read the requested outcome, make the smallest safe change you can, then check that the cluster state matches that outcome. Avoid exam-dump material; it cannot replace practising the terminal work the format requires.

What the CKA exam tests: the five domains

The official weights show where the CKA places most of its emphasis, but every domain can expose a gap in your routine Kubernetes work. Use the domain names to organise practice, then make each exercise end with a verification step rather than stopping when a command accepts its input.

Troubleshooting (30%)

Troubleshooting is the largest domain. Its hands-on work means locating the cause of a failing cluster component or workload from the state and signals available to an administrator, then verifying the repair. Work through a practice question on API-server static Pod debugging to practise investigating a failed kubeadm API-server static Pod through its manifest and container-runtime logs.

Scheduling failures belong in the same habit of reading the evidence before changing anything. Use a practice question on a Pod pending because scheduling fails to follow scheduler events that diagnose a Pending Pod with insufficient memory requests.

Cluster Architecture, Installation & Configuration (25%)

This domain is about administering how the cluster is assembled and governed. In hands-on terms, expect work involving cluster-level configuration, access control, and supported upgrade steps rather than an abstract description of those subjects. Use a practice question on ClusterRoleBinding scope to test the difference between a namespaced RoleBinding and a ClusterRoleBinding when least privilege must apply across namespaces.

Upgrades also reward a cautious sequence. Try a practice question on a kubeadm worker-node upgrade that focuses on the supported, low-disruption sequence for a worker node, which is the kind of procedure you should be able to reason through before running it.

Services & Networking (20%)

Services & Networking covers the administrative side of making workloads reach what they need and of finding why they cannot. Use a practice question on default-deny NetworkPolicy and DNS to work through a default-deny egress policy that blocks CoreDNS and the required DNS allowance.

For the broader model behind that scenario, read the Kubernetes NetworkPolicy guide. When a task turns on how an application is exposed, the Kubernetes Service types guide is a useful companion for separating Services, Ingress, and Gateway API choices.

Workloads & Scheduling (15%)

This domain concerns getting workloads placed and run under the constraints you set. Its hands-on tasks ask you to translate a placement requirement into Kubernetes scheduling controls, then confirm that the resulting placement is intentional. Use a practice question on taints, tolerations, and affinity to test how those controls combine to reserve GPU nodes.

Do not study the terms as interchangeable labels. In a lab, change one scheduling control at a time and observe why a workload can or cannot be placed; that makes the failure evidence in the Troubleshooting domain more useful too.

Storage (10%)

Storage is the smallest weighted domain, but it is still part of the administrator's practical scope. Prepare to work with Kubernetes storage rather than treating it as a vocabulary-only topic, and always verify the workload's result after a storage change.

Try a practice question on a PersistentVolume reclaim policy to check what happens to the data behind a volume when its claim is deleted. Use the official domain weight to keep storage in your plan without letting it displace Troubleshooting.

How to prepare for the CKA exam

Start with Linux Foundation's free Introduction to Kubernetes course, which its CKA and CKAD FAQ lists as free official preparation. Then turn each CKA domain into terminal practice: administer access, perform a supported upgrade sequence, make a workload schedulable, diagnose network and DNS behaviour, work with storage, and troubleshoot cluster failures.

Use the two included Killer.sh simulator sessions after you have practised the individual skills. They are most useful as a timed check of how you navigate, decide, execute, and verify across domains, rather than as the first time you encounter an administrator task.

The CKA practice tests give you original scenarios to reason through, and the complete CKA question list lets you choose a topic for focused review. Use them to find a concept or decision you cannot explain, then reproduce the underlying action in your own environment. For CKA exam questions, use original practice like this rather than material that claims to come from the live test.

CKA or KCNA first?

Choose CKA first when you are ready to demonstrate Kubernetes administration at a command line. If you are a pre-professional student or are beginning work with cloud native technologies, the Kubernetes and Cloud Native Associate (KCNA) is the foundational alternative to consider first. The best Kubernetes certification guide gives the wider comparison with the other Kubernetes credentials.

KCNA has no prerequisites. As of October 2026 it is a 90-minute multiple-choice exam, and its price is US$250 including one free retake; CKA instead uses the two-hour, performance-based format described above. KCNA is valid for two years and can be renewed by passing KCNA again or automatically by passing CKA or CKAD.

Validity, renewal and retakes

A CKA certification expires 24 months after you earn it. To renew it, retake and pass the same exam before its expiry, which is the renewal route the Linux Foundation's CKA FAQ gives. Its certificate guidance covers expiry and renewal across its programs.

Your initial CKA purchase includes two attempts and gives you 12 months to schedule and take the exam. If the first attempt does not pass, use the remaining attempt as a chance to address the specific domain work that caused trouble, while that eligibility period still applies.

Frequently asked questions

What is the CKA certification?

CKA stands for Certified Kubernetes Administrator. It validates skills, knowledge, and competency to perform Kubernetes administrator responsibilities, and the CKA is live as of October 2026. There are no formal prerequisites, but the exam format calls for hands-on command-line work.

How much does the CKA exam cost in India?

The CKA exam-only price is $445 as of October 2026. The official English page does not publish an INR price, so the final amount in India depends on the dollar charge and your card's conversion and fees. Check the price at checkout, including any discount available at that time.

How do I book the CKA exam?

Buy through Linux Foundation and continue in My Portal, where PSI Bridge handles scheduling. Appointments can be scheduled from one to 90 days ahead, and the purchase gives you 12 months to take the exam. Book only when you can meet the matching-ID and private, clear-room requirements.

What is the CKA exam format?

As of October 2026, the CKA is an online, proctored exam of multiple command-line performance tasks completed in two hours through PSI Bridge. The official live-exam question count is not published. You need a score of 66% or above to pass.

What happens if I fail the CKA exam?

The purchase includes two attempts, so a failed first attempt leaves one included attempt within the 12-month eligibility period. Use what you learned about the weak administrator task or domain to guide the next round of lab practice. Check the current retake rules in My Portal before you schedule the second attempt.

How long is CKA certification valid?

CKA is valid for 24 months from the date you earn it. Renew it by passing the same CKA exam before the certification expires. Planning renewal practice before that deadline leaves time to retake the performance-based exam if you need to.