OMG Certified Systems Modeling Professional — Model Builder Fundamental (OMG-OCSMP-MBF200)

When building a basic activity diagram, which symbol begins the activity (a single starting token)?

• AInitial node (filled black circle)
• BActivity final (bullseye)
• CDecision (diamond)
• DFork (black bar)

You need to model an activity where two outputs are produced concurrently, and a downstream action must wait for both before it runs. Which control nodes do you use?

• AFork to start two parallel flows; join to synchronize them before the downstream action
• BDecision and merge
• CTwo initial nodes
• DTwo final nodes

You want to send an event to another part of the system without waiting. Which action do you build into the activity?

• ASend Signal Action (concave-pentagon arrow)
• BAccept Event Action
• CCall Operation Action
• DFinal Node

When the activity must pause until an external signal arrives, which kind of action do you place?

• AAccept Event Action
• BSend Signal Action
• CCall Behavior Action
• DInitial Node

You want to invoke a sub-activity 'Calibrate' as a step within a parent activity. Which kind of action do you use?

• ACall Behavior Action — typed by the Calibrate activity
• BSend Signal Action
• CAccept Event Action
• DDecision Node

Where in an activity diagram would you place a swimlane (activity partition) labeled with a block name like 'Engine'?

• AAround the actions performed by the Engine block — to allocate behavior to structure
• BAround the entire diagram
• CBetween actions to show ordering
• DOutside the diagram frame

You build a sequence diagram. To represent participating instances, you draw what at the top of the diagram?

• ALifeline heads — labeled name : Type — with vertical dashed lines below them
• BUse case ellipses
• CState rectangles
• DBlock compartments

On a sequence diagram, which arrowhead is used for an asynchronous message?

• AOpen (stick) arrowhead on a solid line
• BFilled arrowhead on a solid line
• CFilled arrowhead on a dashed line
• DOpen arrowhead on a dashed line

Which combined fragment in a sequence diagram models 'one of several alternatives chosen by guards'?

• Aalt
• Bloop
• Cpar
• Dopt

You are building a state machine for a 'Pump' block. The Pump should leave the 'Idle' state when a signal 'Start' arrives, but only if 'tankFilled' is true. How do you write this on the transition from Idle?

• AStart [tankFilled] / startMotor
• B[tankFilled] Start / startMotor
• CStart / startMotor [tankFilled]
• DStart / [tankFilled] startMotor

On a state machine, you want some behavior to run continuously while the system is in a state. Which behavior label do you use?

• Ado
• Bentry
• Cexit
• Dtrigger

Which kind of state contains other states (a hierarchy) and may have multiple regions?

• AComposite state
• BSimple state
• CPseudostate
• DFinal state

Which state machine pseudostate is a routing point that combines multiple incoming transitions into one outgoing transition (like a chained transition)?

• AJunction
• BChoice
• CFork
• DInitial

On a state machine, a transition that targets a 'choice' pseudostate evaluates guards when?

• AAfter the action(s) leading up to the choice have executed (dynamic conditional branching)
• BStatically before any actions run
• CNever — choice has no guards
• DOnly on entry

On an activity, you have a decision diamond with two outgoing edges and Boolean guards. What is required for valid behavior?

• AGuards must be mutually exclusive (only one true at a time) or one is [else]
• BBoth guards may be true
• CGuards are optional and ignored
• DThere must be three or more outgoing edges

Which activity diagram element is a container for a single typed object that downstream actions may consume?

• AObject node (typed pin or central buffer/data store)
• BControl node
• CAction
• DStereotype

An action has an input pin typed 'Sample' with multiplicity [1..*]. What does that mean?

• AThe action consumes one or more Sample tokens before it can execute
• BIt must consume exactly one
• CIt cannot have inputs
• DIt outputs Samples

On a sequence diagram, which combined fragment models a loop (with a guard expressing repetition)?

• Aloop
• Balt
• Copt
• Dpar

On a sequence diagram, which combined fragment models 'an optional message that runs only if a guard is true'?

• Aopt
• Balt
• Cloop
• Dref

On a state machine, which symbol marks a state that has been entered but whose history is to be remembered (so re-entering the parent returns there)?

• AHistory pseudostate (H or H*)
• BFinal state
• CChoice pseudostate
• DInitial pseudostate

Which of these is a 'time event' on a state machine transition?

• Aafter(5 sec) — a relative time event triggering the transition after 5 seconds in the sou…
• BStart — a signal
• CIdle — a state name
• D[count<10] — a guard

On an activity, which control node converges multiple incoming flows into one (without synchronization, simply 'whichever arrives first proceeds')?

• AMerge node (diamond shape but with arrows in only)
• BJoin (black bar)
• CDecision (diamond)
• DFork (black bar)

On a sequence diagram, you want to show a synchronous call from A to B that returns a value. How do you draw it?

• ASolid line with filled arrowhead from A to B (call) and a dashed line with open arrowhead…
• BTwo dashed lines
• CA single solid line
• DA loop fragment

On a state machine, which behavior runs immediately when the state is entered, before the do behavior?

• Aentry behavior
• Bexit behavior
• Cdo behavior
• Dtrigger

When building a basic block definition diagram, which of these defines a reusable structural type?

• AA block (rectangle stereotyped «block»)
• BA part property
• CA connector
• DAn item flow

You add a value property 'mass : Real [1] = 0.0' to a block. Where does it appear?

• AIn the values compartment of the block
• BIn the parts compartment
• CIn the operations compartment
• DIn a separate diagram

You want a 'Vehicle' block to own exactly one 'Engine' as an exclusive part. What do you draw on the bdd?

• AA solid line from Vehicle (with filled diamond on the Vehicle end) to Engine, multiplicit…
• BA dashed line
• CA hollow triangle pointing to Engine
• DA hollow diamond

Which kind of feature on a block represents a callable signature like 'computeForce(load:Real):Real'?

• AOperation (in the operations compartment)
• BReception
• CValue property
• DConstraint

Which kind of feature on a block represents the ability to receive a particular signal asynchronously?

• AReception (with the signal name)
• BOperation
• CPart property
• DPin

On an internal block diagram for an enclosing block 'Drone', which element describes a part 'engine : Engine [1]'?

• AA rectangle (part) inside the diagram frame, labeled 'engine : Engine [1]'
• BA diamond
• CAn ellipse
• DA pentagon

On the Drone ibd, you want to connect the engine part's 'fuelIn' port to a 'fuelOut' port on the tank part. What do you draw?

• AA connector (solid line) between the two ports
• BA dependency
• CAn aggregation
• DA signal arrow

You want to declare on the engine-tank connector that 'fuel' (typed object) flows from tank to engine. What do you add?

• AAn item flow with type 'fuel' and a direction triangle pointing to the engine
• BA multiplicity range
• CA stereotype keyword
• DA guard expression

Which kind of port on a part describes a typed item flow with a direction (in/out/inout) — common in basic SysML 1.x ibds?

• AFlow port
• BStandard port
• CBehavior port
• DReception

You want a port on a block that exposes a 'provided interface' (services other parts can call). Which kind of port?

• AStandard port — typed by an interface, with a 'provided' lollipop (or required socket)
• BFlow port
• CComposite part
• DReception

On a bdd, you want to express that a 'Pump' is a kind of 'FlowDevice'. What do you draw?

• AA solid line with hollow-triangle arrowhead from Pump to FlowDevice (generalization)
• BFilled diamond at FlowDevice
• CHollow diamond at FlowDevice
• DDashed dependency to FlowDevice

When you specialize a block 'Pump' from 'FlowDevice', what does Pump inherit?

• AFlowDevice's value properties, parts, operations, ports, etc., which Pump may extend or r…
• BOnly operations
• COnly parts
• DNothing

You build an ibd showing a part 'controller : Controller [2]'. What does the [2] mean?

• AThe enclosing block contains exactly two Controller part instances in this role
• BTwo different blocks
• COptional second instance
• DTwo ports per part

On a bdd, you want to show that 'Vehicle' has two distinct part roles, both typed 'Wheel': 'frontWheels: Wheel [2]' and 'rearWheels: Wheel [2]'. How do you draw this?

• ATwo separate composite-aggregation lines from Vehicle to Wheel, each labeled with its rol…
• BOne line with multiplicity 4
• CGeneralization
• DAn item flow

What is the purpose of building both a bdd and ibd for the same block?

• AThe bdd defines the block's features and types; the ibd shows the runtime configuration o…
• BEither alone is sufficient
• Cbdd is for software; ibd is for hardware
• DThey must be drawn together on one diagram

What does building a port 'with conjugated direction' (~portName) on an ibd indicate?

• AThe port's flow directions are reversed — what was 'in' becomes 'out' and vice versa, use…
• BThe port is duplicated
• CThe port has a higher priority
• DThe port is invisible

Which is the simplest, basic notation to represent an instance value on a bdd (definition vs usage at the type level)?

• A'name : Type = value' on a property line
• BA separate ibd for each instance
• CAn InstanceSpecification element
• DA constraint property

When building an ibd, which element on the diagram frame's boundary represents an external interaction point of the enclosing block?

• AA port drawn on the frame edge
• BA part rectangle inside the frame
• CA connector line
• DA comment

When you build a bdd showing 'Sensor', 'TemperatureSensor', and 'PressureSensor' all connected to Sensor by hollow-triangle arrows, what is being modeled?

• ATemperatureSensor and PressureSensor are subtypes of Sensor — they inherit its features
• BTemperatureSensor and PressureSensor are parts of Sensor
• CSensor is composed of these two blocks
• DThey are unrelated

A SysML «valueType» 'Mass' has a unit 'kg' and a quantityKind 'mass'. Where do these appear on the bdd?

• AAs stereotype property values (tagged values) on the «valueType» Mass on the bdd
• BOn every instance separately
• COn the connectors
• DIn the operations compartment

When building an ibd, what is the standard syntax for a 'flow port' label like 'fuelIn : Fuel [in]'?

• Aname : Type [direction]
• Bname : Type [multiplicity]
• Cname [Type] : direction
• DType : name (direction)

When connecting two flow ports with the same Fuel type, one [in] and the other [out], what must hold for the connection to be valid?

• AThe directions must be compatible (out connects to in) and types must match
• BBoth must be [in]
• CDirection does not matter
• DTypes may differ

What does adding a stereotype «interface» to a block typically signify in basic SysML modeling?

• AThe block defines a set of operations/receptions that other blocks can implement or requi…
• BIt is a runtime instance
• CIt is a constraint
• DIt is an actor