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3. We intend to design a Fire Alarm System for a building with two apartment units. The software specification for the alarm system is as follows The alarm system has an ON/OFF switch to activate or deactivate the whole system. Each apartment unit has a smoke sensor When the smoke is sensed in one apartment unit, the alarm in that unit starts Ringing. If the smoke is gone in less than 5 minutes then the alarm in that unit will stop Ringing If the alarm remains activate for more than 5 minutes, then the alarm system in both units become activate, and a message is sent to the fire station Design a component diagram 4. Given the following Java code, draw a UML class diagram: public class Propeller! public double thrust public in mileage: public class Engine public double power public int mileage public class Planet public Propeller Propellers public Engine myEngine public planer m Propeller new Propeller[2); myPropeller - new Propeller my Propeller (1) new Propeller myEngine now Engine): 1 public class Pilor public int flightHours: public void fly Plane p/ public class Fighter Pilet extends Pilot public int rank 5. Consider a system that includes a Web server and two database servers. Both database servers are identical: The first acts as a main server, while the second acts as a redundant backup in case the first one fails. Users use Web browsers to access data through the Web server. They also have the option of using a proprietary client that accesses the databases directly. Draw a UML deployment diagram representing the hardware/software mapping of this system 3. We intend to design a Fire Alarm System for a building with two apartment units. The software specification for the alarm system is as follows: The alarm system has an ON/OFF switch to activate or deactivate the whole system. Each apartment unit has a smoke sensor. When the smoke is sensed in one apartment unit, the alarm in that unit starts Ringing If the smoke is gone in less than 5 minutes then the alarm in that it will stop Ringing If the alarm remains activate for more than 5 minutes, then the alarm system in both units become activate, and a message is sent to the fire station Design a component diagram 4. Given the following Jaya code, draw a UML. class diagram: public class Propeller: public double public in milege public class Engine! pulvie double per public int mileage public clase Plan public Propeller my Propellers, public Engine Engine public Planet my Propeller new Propeller 27 Propeller(0) = Propeller: Propeller - Propeller: Engewew Engine public class for public in flightHours: public void Plane / public class Fighter Plot extends Pro public int rank 5. Consider a system that includes a Web server and two database servers. Both database servers are identical: The first acts as a main server, while the second acts as a redundant backup in case the first one fails. Users use Web browsers to access data through the Web server. They also have the option of using a proprietary client that accesses the databases directly, Draw a UML deployment diagram representing the hardware software mapping of this system