Maintainability and Software Portability Quiz

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What does preemptive scheduling imply?

Lower priority processes preempt higher priority processes (correct)

Higher priority processes preempt lower priority processes

Processes run without any priority

Processes are terminated abruptly

In non-preemptive scheduling, what happens when a process is running?

The process runs until completion (correct)

The process is sent to the waiting queue

The process is terminated immediately

The next process begins execution

What characterizes round-robin scheduling?

The CPU cycles between processes in a fixed time interval (correct)

Processes are executed manually by the user

Processes are executed based on priority levels

Processes execute without any time constraints

What is a time quantum in multitasking systems?

A short time given to each user or program for execution Signup and view all the answers

What is the role of an executive in scheduling?

Directing the scheduling algorithm Signup and view all the answers

What does hardware coupling refer to?

Transmission of data between circuits Signup and view all the answers

What is the purpose of an Association relationship in a class diagram?

To model communication between classes Signup and view all the answers

How is an Association represented in a class diagram?

By a solid line with a line arrowhead Signup and view all the answers

What do two classes need to be able to do in order for an Association relationship to exist between them?

Communicate with each other Signup and view all the answers

Which statement best describes message flow in an Association relationship?

Bidirectional - messages flow in both directions Signup and view all the answers

In the context of a class diagram, what does the term 'Multiplicity' refer to?

The number of objects that can participate in a relationship Signup and view all the answers

What visual element is used to represent an Association in a class diagram?

Solid line with an arrowhead Signup and view all the answers

What is the purpose of an object diagram?

To show a snapshot of the detailed states of system objects at a specific time Signup and view all the answers

Which UML diagram is an instance of a class diagram?

Object Diagram Signup and view all the answers

What do component diagrams visualize in a system?

Organization and relationships among components Signup and view all the answers

In what way are object diagrams different from component diagrams?

Object diagrams capture detailed states of system objects Signup and view all the answers

How does a dependency relationship typically occur between classes?

From the Cart class to the Product class Signup and view all the answers

When creating a diagram, why should only necessary information be added?

To ensure the diagram is as simple as possible Signup and view all the answers

What is maintainability in the context of a system?

The ability of a system to be maintained Signup and view all the answers

What is the primary goal of software portability?

To make the source code run on different platforms Signup and view all the answers

What should be identified before drawing a deployment diagram?

The nodes and their relationships Signup and view all the answers

What type of scheduling criterion allows high-priority processes to interrupt low-priority processes?

Preemptive Signup and view all the answers

What is a processor in the context of deployment?

Any machine with processing power Signup and view all the answers

What determines the order in which processes are selected by a processor?

Scheduling criteria Signup and view all the answers

What is the purpose of the 'self' keyword in a class?

To refer to the current object being created Signup and view all the answers

What is a constructor in object-oriented programming?

A special method that is called when an object is created Signup and view all the answers

What does the 'protected' access modifier do?

Makes the member accessible to the class, its subclasses, and classes in the same package Signup and view all the answers

What is an instance object?

A class itself Signup and view all the answers

What is the purpose of the 'init' method?

To initialize the object's variables Signup and view all the answers

What is a method in object-oriented programming?

A function that is inside a class and takes an instance object Signup and view all the answers