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what is real time systema real time system has well explained fixed time constraints processing must be done within the explained constraints or the
what is graceful degradationin multiprocessor systems failure of one processor will not halt the system but only slow it down by sharing the work of
what are batch systems batch systems are quite appropriate for implementing large jobs that need little interaction the user can submit jobs and
what is the kernel a more common definition is that the os is the one program running at all times on the computer
what is an operating system an operating system is a program that handles the computer hardware it acts as an intermediate among users of a
what is delegationdelegation gives a proper mechanism to achieve the desired code reuse the method is caught in the desired class and forwarded to
what is normal forma normal form is a guideline for relational database tables that enhances data consistency as tables satisfy higher levels of
what is relational databaserelational database has data that is perceived as tables a relational dbms manages tables of data and associated
what is c reference and java finalassociation ends must be bound at initialization and cannot be altered c references can fully enforce these
what is link destructionlink destruction is inverse of link creation when a link is destroyed makes sure the associated objects accessible by other
what is one-way associationone-way association means association will traverse in only in one direction and implement using the actual implementation
what is system testingthe final step in testing is system testing which means checking the whole application system testing exercises the overall
how will you fine-tune a classit is useful to fine-tune classes before writing code in order to examine development or to improve performance the
what is transformationa transformation is a mapping from the domain of models to the range of models when modeling it is significant not only to
what is reification and behaviourreification is the promotion of something that is not an object into an object behavior usually requires this
what is fan-outestimate the average count of every many association encountered with the path multiply the individual fan-outs who obtain the fan-out
what is refactoringrefactoring is explained as the changes to the internal structure of software to improve its design without changing its external
what is recursing downwards and its waysthe design process generally works top-down you start with the higher level operations and proceed to
what are the steps to design algorithmformulate algorithm for each operation analysis specification tells what the operation does the algorithm shows
what is concurrent controlcontrol resides concurrently in various independent objects every a separate task a task can wait for input but other task
what is event-driven controlcontrol resides within a dispatcher or monitors that language subsystem or os provider developers attach application
how will you allocate sub systemallocate every concurrent subsystem to hardware unit general purpose processor or specialized functional unit as
what is partitionpartitions divide a system into several independent or weakly coupled subsystems each giving one kind of service partitions use
what is layera layered system is ordered set of virtual worlds every build-in terms of ones below it and providing the execution basis for one above
mention the two subsystem relationshipthe relationship among two subsystems can be client-server peer-peer