A. Each layer uses services in the layer immediately below it.
B. Each layer uses services in the layer immediately above it.
C. Each layer uses services in the layer immediately above it and before it.
D. Each layer is independent of the layers. - A
When is a control subsystem required?
A. If the subsystem needs to control several internal objects
B. If the subsystem needs to control multiple I/O devices
C. If the subsystem needs to control multiple client subsystems
D. If the subsystem needs to control the execution of other subsystems - A
What does a state-dependent interaction involve?
A. A control object
B. A state-dependent entity object
C. A state-dependent control object
D. A state-dependent user interaction object - C
What does the software architecture describe?
A. The software inside a building
B. The structure of a client/server system
C. The overall structure of a software system
, D. The software classes and their relationships - C
A producer sends a message to a consumer. Which one of the following is synchronous message
communication with reply?
A. The producer waits for a response from the consumer.
B. The producer does not wait for a response from the consumer.
C. The producer goes to sleep.
D. The producer waits for a timeout. - A
What is an event in a state machine?
A. A discrete signal that causes a change of state
B. An input from the external environment
C. An input that is True or False
D. The result of a state transition - A
Which kind of object executes a state machine?
A. Any software object
B. An entity object
C. A state-dependent control object
D. A statechart - C
What is an entity action in a state machine?
A. An action that is performed when the state is entered
B. An action that is performed when the state is left
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