OMG (Object Management Group)-Certified UML Professional Intermediate Set 1

discrete ✘ continuous ✘ software based ✘ continuous or discrete ✔

apseudostate ✘ a submachine state ✘ a pointer to a connection point ✘ an entry or exit point of a submachine state ✔

The state machine has terminated.
B- The enclosing region is completed. ✘ A completion transition has occurred. ✘ The "do" activity of the state has completed. ✘ The context object of the state machine is terminated. ✔

not a state but a vertex ✘ a state entry or exit point ✘ a specification of a potential state ✘ a state that can be specialized for different purposes ✔

may have guards ✘ are mutually exclusive ✘ are taken serially in arbitrary order ✘ must terminate in different regions of a state ✔

a conditional fork pseudostate ✘ point with an associated Boolean condition ✘ point at which outgoing guards are evaluated ✘ point whose outgoing transitions are optional ✔

concurrent state ✘ contained state machine ✘ separate thread of execution ✘ part of a composite state or a state machine containing transitions and vertices ✔

is an orthogonal state ✘ is executed concurrently ✘ is a kind of submachine state ✘ is equivalent to two states with one region each ✔

can only appear in a composite state ✘ is equivalent to an entry action of a state ✘ starts executing when the state is entered ✘ executes repeatedly as long as the state is active ✔

The executions of orthogonal regions are serialized. ✘ Interrupts are disabled while the state machine is running. ✘ No other event will be processed until the current event is fully processed ✘ The thread executing the state machine cannot be pre-empted by the scheduler. ✔