OCEB 2 Fund. · OMG · BPMN 2.0 Basics & Modeling · Bank updated 2026-10-29
OCEB 2 Fund. practice questions: BPMN 2.0 Basics & Modeling
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These 5 questions come from the BPMN 2.0 Basics & Modeling section of our OCEB 2 Fund. bank (133 questions on this area). Every question is original, with the correct answer explained and linked to the source it is drawn from.
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1/5 · BPMN 2.0 Basics & Modeling
During checkout, the process engine automatically invokes a third-party payment gateway's web service to charge the customer's credit card, with no human reviewing or triggering the call. Which BPMN 2.0 task type should represent this step?
AUser Task
BService Task
CManual Task
DScript Task
Answer: B. Service Task is specifically used when the process engine automates work by calling an external service or application, such as a payment gateway's web service, without any human step or internal scripting logic taking place.
Source: BPMN 2.0 specification — BPMN 2.0 Basics & Modeling
2/5 · BPMN 2.0 Basics & Modeling · easy
In BPMN 2.0, which statement correctly describes the throwing/catching behavior of Start Events?
AStart events always throw a trigger to signal that the process has begun.
BStart events can either catch or throw a trigger depending on the trigger type used.
CStart events can only catch a trigger; they cannot throw one.
DStart events catch a trigger only when the trigger type is None; all other triggers are thrown.
Answer: C. BPMN 2.0 defines Start Events as purely catching flow objects — they wait for or are activated by a trigger (or none at all) to instantiate a process. There is no notion of a 'throwing start event' anywhere in the specification, unlike intermediate and end events which can be either catching or throwing depending on type.
Source: BPMN 2.0 specification — BPMN 2.0 Basics & Modeling
3/5 · BPMN 2.0 Basics & Modeling
A modeler draws a rounded-corner, dashed-line rectangle around a set of five Tasks that span two different Lanes, purely to visually highlight that they belong to the same phase of the project for reporting purposes. In BPMN 2.0, what is this element, and does it affect the process's execution semantics?
AIt is a Group artifact; it has no effect on Sequence Flow or execution semantics, serving only as a visual/documentation aid
BIt is a Sub-Process boundary; it groups the five Tasks into a single reusable executable unit
CIt is a Lane; it reclassifies the five Tasks as belonging to one new organizational role
DIt is a Data Store; it indicates the five Tasks share access to the same persistent data
Answer: A. The Group artifact — a rounded, dashed-line rectangle — is purely a visual/documentation device used to cluster elements, often for reporting, printing, or analysis purposes. It does not alter Sequence Flow, execution order, or any other run-time semantics.
Source: BPMN 2.0 specification — BPMN 2.0 Basics & Modeling
4/5 · BPMN 2.0 Basics & Modeling
In a claims-handling process, a modeler places a plain, unmarked Intermediate Event immediately after the 'Documents Verified' task and before the 'Calculate Payout' task, purely to visually flag that verification has occurred. What is the correct token-flow consequence of this modeling choice?
AThe token is held until someone manually raises a signal named 'Documents Verified.'
BPlacing an unmarked Intermediate Event at this point is invalid BPMN and the diagram would fail validation.
CThe token is held there until a 'Documents Verified' message arrives from another pool.
DThe token passes through immediately with no delay — the event exists only as a documentation marker, not a control mechanism.
Answer: D. Because the event has no Event Definition, it is a None Intermediate Event and behaves purely as a visual milestone: the process moves on to 'Calculate Payout' without any pause, and the marker's only purpose is to communicate to readers of the diagram that a meaningful state was reached.
Source: BPMN 2.0 specification — BPMN 2.0 Basics & Modeling
5/5 · BPMN 2.0 Basics & Modeling · hard
A vendor-onboarding process has a task 'Validate Documents' with two outgoing sequence flows and no gateway: one with condition documentsComplete == true leading to 'Activate Vendor', and one with documentsComplete == false leading to 'Request More Info'. A later rule change allows the documentsComplete flag to sometimes be left unset (null) or, under a diagnostic override, to satisfy both checks in edge cases. What is the correct BPMN-based diagnosis and remediation?
AThe risk is limited to token loss only; simultaneous activation of both branches is impossible because a task can have at most one true outgoing condition at execution time.
BBecause the outgoing flows are evaluated independently with no built-in mutual-exclusion guarantee, both a 'no flow taken' outcome (token loss when the flag is null) and a 'both flows taken' outcome (duplicate concurrent activation) are structurally possible; replacing the task's implicit split with an Exclusive Gateway that has a default flow guarantees exactly one outgoing flow is always taken.
CThe correct remediation is to move the condition expressions onto a boundary event attached to the task, since only boundary events support conditional branching logic.
DThis is not a real risk: sequence flow conditions attached to a task are automatically treated as mutually exclusive and exhaustive by the BPMN engine, just as if a Gateway were present.
Answer: B. Implicit splits carry two latent risks that an explicit gateway eliminates: if no condition is true, the token has nowhere to go (lost/stuck), and if more than one condition is true, multiple downstream branches fire concurrently and unintentionally. An Exclusive Gateway with a default flow closes both gaps by guaranteeing exactly one selected outgoing flow.
Source: BPMN 2.0 specification — BPMN 2.0 Basics & Modeling
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