C1000-148
IBM Cloud Pak for Business Automation v21.0.3 Solution Architect
C1000-148 Exam Guide: Scope, Blueprint, Status, and Preparation Decisions
C1000-148 validated solution-architecture capability for IBM Cloud Pak for Business Automation v21.0.3, including infrastructure planning, architecture, performance, security, and sizing. IBM positioned it at intermediate level for experienced solution architects. The exam and associated certification were withdrawn on September 30, 2025, so the key decision is no longer simply how to prepare: first confirm whether you need historical preparation information or should follow IBM’s stated replacement path to C1000-194. This guide explains the former exam’s scope, the evidence-backed blueprint, and a practical way to redirect your study effort.
Should you schedule C1000-148 now?
No. IBM states that the C1000-148 exam and its associated certification were withdrawn on September 30, 2025. IBM also states that C1000-148 was to be replaced by C1000-194. Treat the withdrawal as the first scheduling fact to verify, not as a minor footnote in a preparation plan.
For a current certification decision, check IBM Training for the present status of the replacement exam and its certification requirements. The supplied IBM source identifies the replacement but does not provide a complete, current C1000-194 blueprint, delivery method, price, appointment process, or eligibility rule. Those details should not be inferred from C1000-148.
C1000-148 remains useful as historical reference when you are reviewing an older project, interpreting a legacy training plan, or comparing the v21.0.3 solution-architect role with a newer IBM credential. It is not appropriate to represent this withdrawn exam as an available booking option.
What certification did C1000-148 support?
C1000-148 was the exam requirement for the IBM Certified Solution Architect – Cloud Pak for Business Automation v21.0.3 certification. IBM’s 2023 TechXchange certification document listed it as IBM Cloud Pak for Business Automation v21.0.3 Solution Architect, while IBM Training identified the covered product release as Cloud Pak for Business Automation v21.0.3.
The credential was aimed at architecture work rather than narrow administration of one component. The associated role required defining infrastructure requirements, understanding the overall Cloud Pak for Business Automation architecture, and addressing performance, security, and sizing.
That distinction matters when evaluating old study material. A resource focused only on command syntax or isolated product features would not represent the whole role. A stronger historical preparation plan connected platform decisions to architecture constraints and then to a proposed business-automation solution.
Who was the intended candidate?
IBM classified the certification as intermediate level for experienced solution architects. The intended candidate therefore needed more than product-name recognition: the role called for making and explaining design decisions across infrastructure, architecture, performance, security, and sizing.
IBM listed working knowledge of Linux, the OpenShift command-line interface and monitoring, databases, and LDAP among the recommended skills. It also listed basic knowledge of CNCF Kubernetes, OpenShift, Kafka, Elasticsearch, Kibana, HDFS, machine learning, and OpenShift container storage.
Use those recommendations as a readiness check rather than as a promise that every listed technology received equal examination attention. If Linux, OpenShift operations, monitoring, database concepts, or LDAP are unfamiliar, repair those foundations before attempting architecture memorization.
A candidate coming from solution design should identify operational gaps. A candidate coming from platform administration should identify architecture and solutioning gaps. Neither background automatically covers the full role described by IBM.
What did the exam measure?
The official objective split was Platform Planning at 29%, Architecture at 30%, and Solutioning at 41%. Solutioning was the largest named domain, but all three domains were part of the blueprint and should have appeared in a balanced preparation plan.
Platform Planning at 29% pointed preparation toward infrastructure requirements and the conditions needed to host the platform. Architecture at 30% required understanding the overall Cloud Pak for Business Automation architecture. Solutioning at 41% emphasized turning those constraints and architectural relationships into a workable solution.
Do not use the percentages as a substitute for objectives. A domain percentage indicates relative blueprint emphasis; it does not tell you which individual technology, scenario, or design choice will appear. Build study notes around decisions, dependencies, and trade-offs rather than trying to predict question wording.
The blueprint also helps allocate limited study time. Once baseline knowledge is in place, a reasonable historical allocation would give the largest block to Solutioning, followed by Architecture and Platform Planning. That is a practical recommendation, not an IBM scheduling rule or a guarantee about individual forms of the exam.
How should Platform Planning be studied?
Study Platform Planning as a requirements-to-design exercise. Start with the workload and operating conditions, then identify infrastructure, storage, connectivity, identity, monitoring, and capacity considerations that could affect a Cloud Pak for Business Automation deployment.
The IBM role description explicitly included defining infrastructure requirements and addressing sizing. Your notes should therefore answer questions such as: What information must be collected before proposing a platform? Which dependencies could change the design? Which assumptions must be confirmed with stakeholders? How would a sizing decision affect performance or operational risk?
Use a requirements matrix with columns for requirement, evidence, design implication, dependency, and unresolved question. This prevents a common mistake: listing platform components without explaining why they belong in the design.
Recommended sequence: review Linux and OpenShift fundamentals; map the platform’s infrastructure concerns; study monitoring and storage concepts; then practise writing a short infrastructure recommendation from a stated workload. Keep each recommendation tied to an explicit requirement rather than to a preferred product feature.
Avoid treating sizing as a memorized table. The supplied evidence confirms that sizing was part of the role, but it does not supply sizing values or a universal configuration. Any historical notes containing exact capacities should be checked against the appropriate IBM product documentation before use.
How should Architecture be studied?
Architecture preparation should connect the major platform capabilities and their supporting services. The goal is to explain how a proposed design fits together, where dependencies exist, and which architectural choice supports a stated requirement.
IBM described the role as requiring an understanding of the overall Cloud Pak for Business Automation architecture. That calls for an architecture map, not a collection of disconnected definitions. Draw the platform boundary, identify the surrounding infrastructure and service dependencies, and annotate where identity, data, messaging, storage, monitoring, and security concerns enter the design.
Use two views of the same architecture. The first should be a component relationship view: what communicates with what, and which services support the solution? The second should be a responsibility view: who operates each layer, where is configuration managed, and what evidence would show that the design is working?
The recommended technology list gives useful foundation topics: CNCF Kubernetes, OpenShift, Kafka, Elasticsearch, Kibana, HDFS, machine learning, and OpenShift container storage. Do not study these as an unrelated catalogue. Place each topic in an architecture narrative and record what problem it helps address, what dependency it introduces, and what operational knowledge is required.
A frequent error is confusing familiarity with architecture understanding. Being able to define Kafka or Kubernetes is not the same as deciding where a capability belongs in a solution. After each study session, explain the design aloud or in writing without copying a diagram.
How should Solutioning receive the largest study block?
Solutioning deserves the largest planned study block because IBM assigned Solutioning 41% of the exam objectives. Prepare by translating business and technical requirements into an integrated recommendation, then defending that recommendation against performance, security, sizing, and operational constraints.
Create scenario briefs rather than flashcards alone. Each brief should state the business outcome, users or workloads, integration needs, data and identity considerations, availability expectations, constraints, and unresolved assumptions. Then produce a solution outline that identifies the architecture, infrastructure implications, security controls, monitoring approach, and risks.
When reviewing a solution, ask five questions: Does it satisfy the stated requirement? Does it fit the platform architecture? Is the capacity rationale explicit? Are security and identity addressed? Can an operations team monitor and support it? These questions keep solutioning connected to the role IBM described.
Use trade-off tables. For every significant choice, record the requirement served, benefit, cost or risk, dependency, and alternative. This is more valuable than memorizing a single answer because architecture questions commonly test the quality of a decision in context. The supplied sources do not provide live questions, so preparation should remain scenario-based without claiming to reproduce the exam.
A useful final exercise is to critique your own design from three perspectives: platform engineer, security reviewer, and solution owner. If the design is persuasive only from one perspective, return to the missing constraint rather than adding random product facts.
Which technical foundations should be repaired first?
Begin with the foundations that can block architecture reasoning: Linux, OpenShift command-line use, monitoring, databases, and LDAP. IBM identified these as working-knowledge areas, so candidates weak in them should not postpone them until the final review.
Next, cover the technologies IBM listed as basic-knowledge areas: CNCF Kubernetes, OpenShift, Kafka, Elasticsearch, Kibana, HDFS, machine learning, and OpenShift container storage. The objective is not to become a specialist in every topic. It is to understand each technology’s architectural role, key dependency, operational concern, and relationship to the solution.
A practical diagnostic is to write one paragraph for each foundation answering four prompts: what the technology does; where it sits in the platform; what can go wrong if it is misunderstood; and which architecture or solution decision it can influence. Mark answers that rely on vague words such as “scalable,” “secure,” or “integrated” and replace them with a specific mechanism or requirement.
Do not spend the first phase collecting every available reference. Establish a controlled topic list from the IBM recommendations, then use authoritative product documentation and training material to resolve gaps. Because C1000-148 was withdrawn, confirm that any newer material still applies to the historical v21.0.3 scope before treating it as evidence about this exam.
What study roadmap makes sense for a historical review?
A four-stage roadmap keeps preparation purposeful: confirm scope, build foundations, practise integrated design, and perform a withdrawal-aware final review. Since the exam is no longer current, use this roadmap for historical analysis or transferable skills, then redirect active certification planning to the replacement information published by IBM.
Stage one is scope control. Record the product release, role description, three domains, and official status. Separate verified facts from your own study assumptions. Remove resources that advertise current availability without acknowledging the withdrawal on September 30, 2025.
Stage two is foundation repair. Work through Linux, OpenShift command-line and monitoring, databases, and LDAP first. Add the basic-knowledge topics listed by IBM, placing each in a one-page architecture map. At the end of this stage, you should be able to explain dependencies without relying on a glossary.
Stage three is design practice. Create several requirement briefs and produce solution outlines covering platform planning, architecture, performance, security, and sizing. Review each outline against the three named domains. Give the largest set of exercises to Solutioning because IBM assigned Solutioning 41% of the objectives, while still including Platform Planning at 29% and Architecture at 30%.
Stage four is decision review. Recheck every note against the official IBM page, remove unsupported claims about current delivery, and decide whether your actual goal is legacy knowledge or the replacement certification. If the goal is current certification, stop investing in C1000-148-specific materials and obtain the current C1000-194 details from IBM before setting a study schedule.
How can the blueprint guide daily study?
Use the blueprint to distribute attention, but use performance on practice tasks to decide what to revisit. A candidate who can recite domain labels but cannot justify an infrastructure or architecture choice has not converted the blueprint into usable readiness.
For a study block, choose one primary domain and one connecting skill. For example, pair Platform Planning with sizing analysis, Architecture with OpenShift and service dependencies, or Solutioning with security and performance trade-offs. The pairings are preparation recommendations; they are not additional IBM exam objectives.
Maintain an error log with four fields: misunderstood requirement, incorrect assumption, missing technical knowledge, and better reasoning path. This classification is more useful than a simple score because it shows whether the problem is recall, interpretation, or design judgement.
Review the log at the end of each cycle. Rework the original scenario without looking at the earlier answer, then compare the two designs. If the second version improves only because you remembered a phrase, continue practising the underlying dependency. If it improves because you identified a missing requirement, record that reasoning pattern for future scenarios.
How should practice questions be used?
Use practice questions to test reasoning and locate gaps, not to collect answer keys. The supplied IBM Community material discusses C1000-143 practice questions, not C1000-148, and therefore cannot verify a C1000-148 question bank or establish that any resource contains current or authentic exam content.
For any historical practice set, check its version, source, domain coverage, and explanation quality. A useful item should make you explain why the selected design satisfies the requirements and why the alternatives are weaker. An answer-only list cannot show whether your architecture reasoning is sound.
Do not treat leaked questions, exam dumps, or memorized responses as a preparation strategy. They do not establish understanding, and no source supplied here says that memorization guarantees a pass. Prefer original scenarios built from the documented role, recommended skills, and official domain labels.
After answering an item, classify the result: correct for the right reason, correct by elimination, incorrect because of a knowledge gap, or incorrect because of a requirement-reading error. Only the first category should count as dependable readiness evidence.
What exam facts were officially documented?
IBM documented that C1000-148 had 60 questions, required 42 correct answers to pass, and allowed 90 minutes. These figures describe the historical exam and should not be presented as current scheduling information after the withdrawal.
The documented pass requirement was 42 correct answers, but it should not be interpreted as permission to target the minimum in practice. A preparation target should include room for uncertainty, and practice results should be judged by the quality of reasoning and coverage of domains rather than by a bare threshold.
The supplied official research does not establish a current delivery method, testing location, language list, appointment workflow, price, retake policy, or accommodation process for C1000-148. Do not fill those gaps with assumptions from another IBM exam. For active certification planning, consult IBM’s current certification page and the replacement exam information.
The 2023 TechXchange document provides historical catalogue context by listing C1000-148 as IBM Cloud Pak for Business Automation v21.0.3 Solution Architect. It does not override IBM’s later statement that the exam and associated certification were withdrawn on September 30, 2025.
What are the most damaging preparation mistakes?
The most serious mistake is planning to book a withdrawn exam. Confirm status before buying material, arranging study time, or accepting claims that C1000-148 is still available. The second is studying product features without practising architecture and solution decisions.
Another mistake is treating the 41% Solutioning share as a reason to ignore the other domains. Solutioning at 41% does not replace Platform Planning at 29% or Architecture at 30%. A solution can fail because its infrastructure assumptions or architectural relationships are wrong.
Do not confuse the recommended knowledge list with a demand for equal depth in every technology. Start with the working-knowledge areas, then connect the basic-knowledge topics to architecture. This avoids spending excessive time on isolated terminology while missing the role’s central design responsibilities.
Avoid using unsupported legacy details. Exact delivery conditions, question formats beyond the documented facts, and current availability should come from an applicable IBM source. If a study provider makes a stronger claim than the official page, label it unverified or exclude it.
Finally, do not let practice volume replace review. Repeating questions without analysing assumptions can reinforce the same misunderstanding. An error log and scenario rewrite provide clearer evidence of improvement.
What should you do next?
First, decide whether your objective is current IBM certification or historical C1000-148 knowledge. For current certification, verify IBM’s C1000-194 information and present requirements. For historical study, preserve the v21.0.3 scope but label all exam facts as historical.
Next, download or record the official IBM page details that define the role, recommended skills, blueprint domains, historical exam format, withdrawal status, and replacement statement. Build your study tracker from those facts rather than from third-party claims.
Then complete a gap assessment. Rate your confidence in Linux, OpenShift command-line work and monitoring, databases, LDAP, the listed basic-knowledge technologies, infrastructure planning, architecture, and integrated solutioning. Select the weakest prerequisite that affects multiple design decisions and study it first.
Finally, create one requirement-to-solution exercise and review it against Platform Planning at 29%, Architecture at 30%, and Solutioning at 41%. Keep those labels attached to the percentages whenever you use them. This gives you a defensible historical preparation baseline while preventing an obsolete exam page from directing a current scheduling decision.
Conclusion
C1000-148 should now be treated as a withdrawn, historical exam for IBM Cloud Pak for Business Automation v21.0.3, not as a normal current booking target. Its documented role and blueprint still provide a useful model for studying infrastructure planning, architecture, and solution design. Confirm the replacement path with IBM, repair the recommended technical foundations, and practise requirement-led designs instead of relying on memorized answers or unverified question claims.