C1000-148 Exam Guide: Scope, Blueprint, and the Right Next Step
C1000-148 validated solution-architecture capability for IBM Cloud Pak for Business Automation v21.0.3, including infrastructure planning, platform architecture, sizing, performance, and security decisions. IBM positioned it at intermediate level for experienced solution architects and specified the exam as the requirement for its associated certification. The most important decision for a reader now is not how to book this exam, but whether an older preparation plan still applies: IBM states that C1000-148 and its certification were withdrawn on September 30, 2025, with C1000-194 identified as the replacement.
What C1000-148 was designed to validate
C1000-148 assessed whether a solution architect could turn Cloud Pak for Business Automation requirements into a viable platform and solution design. The role was broader than product familiarity: IBM associated it with infrastructure requirements, the overall Cloud Pak architecture, performance, security, and sizing.
The exam covered IBM Cloud Pak for Business Automation v21.0.3. IBM’s 2023 TechXchange certification document described the credential as IBM Cloud Pak for Business Automation v21.0.3 Solution Architect, while the IBM certification page identified C1000-148 as the exam requirement for the related IBM Certified Solution Architect – Cloud Pak for Business Automation v21.0.3 certification.
That scope matters when evaluating old notes, courses, or practice material. A resource can be relevant to the product family yet still be unsuitable for a replacement exam or a later product release. Treat the v21.0.3 designation as a boundary around the original exam, not as evidence that every current Cloud Pak deployment topic belonged to C1000-148.
Is C1000-148 still available to schedule?
No scheduling plan should assume that C1000-148 remains active. IBM states that the C1000-148 exam and its associated certification were withdrawn on September 30, 2025, and that C1000-148 was to be replaced by C1000-194.
This changes the practical purpose of an exam guide. If you are researching C1000-148 after the withdrawal date, use this page to understand the retired credential and to identify transferable architecture topics, then verify the replacement exam’s current requirements directly through IBM before buying training or practice material. The supplied IBM source does not provide the complete C1000-194 blueprint, so this guide does not present C1000-194 objectives as if they were C1000-148 objectives.
If you were preparing before the withdrawal and did not complete the exam, do not infer that an old booking, voucher, or course automatically transfers. Confirm eligibility, registration, and any transition arrangement with IBM or the applicable testing provider. Those administrative details are not established by the supplied research.
Who the original exam served
IBM classified the certification as intermediate level for experienced solution architects. The intended candidate therefore needed to reason about a complete automation platform rather than study isolated feature definitions.
The associated role required defining infrastructure requirements, understanding the overall Cloud Pak for Business Automation architecture, and addressing performance, security, and sizing. This points to candidates who make or review deployment decisions, write architecture proposals, support implementation teams, or translate business and operational constraints into a platform design.
It was not necessary to treat the certification as a generic Kubernetes exam. IBM listed platform-related knowledge as a prerequisite foundation, but the role centered on applying that foundation to Cloud Pak architecture and solutioning. A candidate whose experience is limited to application configuration should first close the gap in infrastructure and platform design before relying on question practice.
A useful readiness question is: can you explain why a proposed deployment needs particular infrastructure characteristics, how the platform components fit together, and what trade-offs affect security, performance, and capacity? If the answer is mostly a list of product names, preparation should begin with architecture relationships and decision criteria.
Which technical foundations were expected
IBM recommended basic knowledge of CNCF Kubernetes, OpenShift, Kafka, Elasticsearch, Kibana, HDFS, machine learning, and OpenShift container storage, alongside working knowledge of Linux, the OpenShift command-line interface and monitoring, databases, and LDAP.
Use these recommendations as a diagnostic checklist rather than as a demand to master every technology equally. Kubernetes and OpenShift provide the platform context; Linux and the OpenShift command-line interface support operational reasoning; monitoring connects design choices to system behavior; databases and LDAP support persistence and identity considerations. Kafka, Elasticsearch, Kibana, HDFS, machine learning, and OpenShift container storage broaden the surrounding technology context listed by IBM.
For each item, write a short explanation of its architectural relevance. For example, your notes should connect monitoring to detecting resource or performance problems, LDAP to identity integration, and storage to persistence and platform operation. Do not create unsupported product-specific procedures from these topics; the source confirms the knowledge areas, not a detailed lab sequence.
A gap in one foundation is most serious when it prevents you from evaluating a design. If you cannot distinguish a platform requirement from an application preference, return to the relevant foundation before attempting timed questions.
How the exam objectives were weighted
The official blueprint assigned Platform Planning 29%, Architecture 30%, and Solutioning 41%. Solutioning was the largest named domain, but the three domains together describe a connected architecture workflow rather than three unrelated study subjects.
Platform Planning at 29% should direct attention to infrastructure requirements and the constraints that shape a deployment. Architecture at 30% should direct attention to the overall arrangement of Cloud Pak components and supporting platform services. Solutioning at 41% should direct attention to selecting and justifying an approach for performance, security, sizing, and solution requirements.
Keep the domain label beside every percentage in your study plan. A note that says only “41%” is easy to misread later and provides no reminder of what must be studied. Instead, create three sections named exactly by their official domains and place questions, notes, and weak areas under the appropriate heading.
The weights are a prioritization signal, not permission to ignore the smaller domains. A study plan that spends all its time on Solutioning can still fail if it cannot establish the platform assumptions required to support a sound solution. Review Platform Planning and Architecture early, then use Solutioning scenarios to connect them.
What the original exam format required
IBM reported 60 questions, 42 correct answers required to pass, and 90 minutes allowed for C1000-148. Those figures describe the withdrawn exam and should not be transferred to C1000-194 or any current IBM assessment.
The reported figures imply that preparation needed both technical judgment and disciplined pacing. Candidates could not spend unlimited time reconstructing every scenario from first principles. A practical exercise is to answer a study question, record the design constraint that controlled your choice, and move on when the reasoning is complete.
Do not use the passing requirement as a target for memorization. A result near the threshold in an unofficial practice set is not evidence of readiness, especially when the material may be outdated or may not represent the official exam. Use practice to expose missing reasoning, then verify the underlying concept in IBM learning or product documentation where available.
Because the exam is withdrawn, these format details are useful mainly for understanding historical preparation advice. They should not guide a new booking decision without confirmation that IBM has reinstated or otherwise made the exam available.
How to study Platform Planning without memorizing inventories
Study Platform Planning by starting with requirements and tracing them to infrastructure consequences. The goal is to explain what the platform must support and why, not to recite a disconnected list of servers, services, or configuration terms.
Build a planning worksheet with four columns: business or operational requirement, platform implication, risk if overlooked, and evidence needed to validate the choice. Populate it with issues such as capacity, storage behavior, identity integration, monitoring, security constraints, and performance expectations, but keep the entries tied to Cloud Pak architecture rather than generic cloud advice.
Next, review each worksheet entry and ask what information is missing. A sizing decision without workload assumptions is incomplete. A security decision without an identity or access context is incomplete. A performance claim without a measurement or monitoring approach is incomplete. These checks train the same kind of structured thinking expected from a solution architect.
A common mistake is beginning with a preferred topology and forcing requirements to fit it. Reverse that order. State the requirement, identify the relevant platform capability or constraint, compare viable approaches, and document the trade-off. This method remains useful even when the specific exam is no longer available because it develops transferable architecture practice.
How to study Architecture as a system
Architecture preparation should make component relationships visible. Draw the platform at a level where you can explain dependencies, supporting services, operational boundaries, and the effect of a change on the wider solution.
Create one diagram for the major Cloud Pak for Business Automation architecture and annotate it with questions rather than decorative labels. For each area, ask what it provides, what it depends on, what data or identity service it uses, and what an operator would monitor. The supplied IBM facts confirm the architecture and supporting knowledge areas, but they do not provide a complete component-by-component blueprint, so avoid inventing one.
Use a second pass to mark concerns that cross boundaries. Storage affects more than persistence; identity affects more than login; monitoring affects more than troubleshooting; and platform choices affect both performance and security. Cross-boundary notes are more valuable than isolated definitions because architecture questions often require selecting an option that satisfies several constraints at once.
Do not confuse familiarity with a diagram for understanding. Hide the labels and reconstruct the relationships from memory. Then compare your version against authoritative IBM material. Where your explanation depends on a product release or implementation detail, label it with the relevant version instead of presenting it as timeless.
How to practise Solutioning decisions
Solutioning practice should use constraint-based scenarios: identify the requirement, eliminate options that violate it, and justify the remaining design. This is more effective than learning an answer pattern detached from the reason behind it.
For every scenario, write five short notes: the primary requirement, secondary constraints, the proposed design choice, the rejected alternative, and the operational risk. Include performance, security, sizing, infrastructure, and integration considerations because IBM associated these concerns with the solution-architect role.
When two options appear plausible, look for the constraint that separates them. A solution may meet a functional requirement while failing a security or operational requirement. Another may be secure but introduce an unacceptable platform or performance burden. The correct reasoning is usually the one that satisfies the stated priorities with the fewest unaddressed assumptions.
Avoid practice materials that claim to reproduce live questions or guarantee a pass. The supplied IBM Community page discusses C1000-143 practice questions, not C1000-148, and does not establish an official C1000-148 question bank. Practice questions can support learning only when you use them to test understanding and verify the explanations.
A practical study roadmap for the original blueprint
A disciplined roadmap moves from prerequisites to architecture, then to integrated solution decisions. Since C1000-148 was withdrawn, use this sequence for historical study or transferable Cloud Pak architecture development, and replace the final exam-specific step with verification of the current IBM replacement.
First, perform a baseline review. List the IBM-recommended knowledge areas and rate each as familiar, usable, or weak. For weak areas, learn the basic vocabulary and purpose before attempting detailed scenarios. This prevents a platform term from obscuring the actual architecture decision.
Second, build the Platform Planning foundation. Convert requirements into infrastructure implications and record assumptions about capacity, storage, identity, security, and monitoring. Keep Platform Planning 29% visible in the plan so the domain does not disappear behind more interesting solution topics.
Third, reconstruct the Architecture view. Draw the system, explain component relationships, and identify cross-cutting dependencies. Review both Kubernetes and OpenShift fundamentals as they relate to the platform, while also revisiting the supporting technologies IBM listed.
Fourth, spend the largest study block on Solutioning 41%. Work through design alternatives and explain trade-offs involving performance, security, sizing, and infrastructure. Then return to Architecture 30% and Platform Planning 29% to repair the assumptions that caused errors.
Finally, conduct a decision review rather than a memorization review. For each missed question or weak topic, write the requirement that should have controlled the answer. If the resource is tied to v21.0.3, mark that version clearly. Before taking any further certification action, check IBM’s current page for C1000-194 and its active objectives.
How to use practice questions safely
Practice questions are useful when they reveal a reasoning gap, but they cannot establish the current status or scope of a certification. For C1000-148, outdated or mismatched material is an especially serious risk because IBM states that the exam was withdrawn and identified C1000-194 as its replacement.
Before using a question set, check whether it names C1000-148, C1000-143, or another exam. The supplied IBM Community source concerns C1000-143 and includes discussion of practice questions for that exam; it is not evidence that those questions apply to C1000-148. Do not substitute one exam code for another because the products appear related.
For each question, hide the answer and classify the task: requirement analysis, architecture relationship, platform prerequisite, security decision, performance concern, or sizing judgment. After answering, explain why each alternative is weaker. If the explanation depends on a release-specific detail, verify the version before retaining it in your notes.
Do not seek leaked questions, exam dumps, or memorized answer strings. They can encourage false confidence, may be inaccurate, and do not replace the ability to justify an architecture choice. The safest practice set is one that teaches the decision process and points you back to authoritative material.
Mistakes that waste preparation time
The biggest preparation mistake is studying C1000-148 as though it were an active exam. Confirm the exam’s status before spending money or committing to a schedule; IBM’s supplied page states that the exam and certification were withdrawn on September 30, 2025.
Another mistake is treating the domain weights as a checklist of isolated facts. Platform Planning 29%, Architecture 30%, and Solutioning 41% should form a progression: establish requirements, understand the platform, and select a defensible solution. Studying only terminology leaves the connections untested.
Candidates also over-focus on a single technology. IBM’s recommended skills span Kubernetes, OpenShift, Linux, monitoring, databases, LDAP, and several supporting technologies. You do not need to turn every item into a separate specialist certification, but you do need enough working context to understand how it affects an architecture decision.
Finally, avoid carrying version-specific assumptions into a different exam. C1000-148 covered Cloud Pak for Business Automation v21.0.3. Notes that omit the version can look current when they are actually describing the historical exam. Label old material, verify replacement objectives, and discard any topic that cannot be traced to the current official blueprint.
What to do before choosing a course or booking path
Start with status verification, not a shopping list. Confirm the active IBM certification, exam code, objectives, recommended skills, and registration route from IBM. The supplied research identifies C1000-194 as the intended replacement but does not provide enough detail to treat it as fully equivalent to C1000-148.
Then evaluate training against the blueprint. A useful course should identify its product version, explain architecture decisions, cover infrastructure and operational concerns, and distinguish official objectives from instructor recommendations. Be cautious with pages that advertise C1000-148 as currently schedulable without acknowledging IBM’s withdrawal statement.
For a replacement exam, create a new mapping table rather than copying the old one. Put each current domain in one column and your existing knowledge in another. Transfer broad skills such as requirements analysis, platform architecture, security reasoning, performance analysis, and sizing only after checking that the new blueprint includes them.
Your immediate next action is simple: open the official IBM certification source, verify the replacement’s current status and objectives, and use the C1000-148 material only as historical context. If you are studying Cloud Pak architecture for work rather than certification, retain the roadmap but anchor technical procedures to current IBM product documentation.
Conclusion
C1000-148 was a version-specific, intermediate solution-architect exam for Cloud Pak for Business Automation v21.0.3, with emphasis on platform planning, architecture, and solutioning. Its historical blueprint and recommended skills still provide a useful framework for understanding the role, but IBM states that the exam and certification were withdrawn on September 30, 2025. Treat the next step as a current-status check for C1000-194, not as an attempt to schedule or blindly reuse an obsolete preparation package.
