Java Multithreading Quiz

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Questions and Answers

What is the primary advantage of using multithreading over multiprocessing in Java?

Threads allocate separate memory areas, improving memory management and context-switching time
Processes use a shared memory area, reducing memory usage and context-switching time
Processes allocate separate memory areas, improving memory management and reducing context-switching time
Threads use a shared memory area, saving memory and reducing context-switching time (correct)

In which types of applications is Java Multithreading commonly used?

Word processing and spreadsheet applications
Games and animation (correct)
Database management systems
Operating system kernels

What is the main reason for using multitasking?

To minimize CPU utilization and execute tasks sequentially
To allocate separate memory areas for each task
To reduce the number of tasks running concurrently
To execute multiple tasks simultaneously and utilize the CPU (correct)

How does multithreading in Java contribute to user interaction?

It doesn't block the user because threads are independent and allow multiple operations simultaneously (C) Signup and view all the answers

What happens to other threads if an exception occurs in a single thread in Java Multithreading?

Other threads are not affected by the exception in a single thread (D) Signup and view all the answers

What is an Euler path in a graph?

An Euler path in a graph is a path containing every edge of the graph with no repeats. Signup and view all the answers

What are the criteria for an Euler path?

The criteria for an Euler path are to use every edge in the graph and to have no repetition of edges. Signup and view all the answers

What is an Euler circuit in a graph?

An Euler circuit is an Euler path that begins and ends with the same vertex. Signup and view all the answers

What are the criteria for an Euler circuit?

The criteria for an Euler circuit are to use every edge in the graph, have no repetition of edges, and to have the initial vertex equal to the terminal vertex. Signup and view all the answers

According to Euler's Theorem, when does a connected graph have an Euler path?

A connected graph has an Euler path if and only if it has exactly two vertices of odd degrees. Signup and view all the answers

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Study Notes

Euler Path and Euler Circuit

An Euler path visits every edge of a graph exactly once without repeating any edges.
An Euler circuit is an Euler path that starts and ends at the same vertex.
Criteria for an Euler path:
- Must traverse every edge in the graph.
- No edge can be used more than once.
Criteria for an Euler circuit:
- Must traverse every edge in the graph.
- No edge can be repeated.
- The starting vertex must be the same as the ending vertex.
If a graph has an Euler circuit, it automatically has an Euler path.

Eulerian Graph

A graph is defined as Eulerian if it contains an Euler circuit.

Theorems

Euler’s Theorem for paths:
- A connected graph has an Euler path if and only if it has exactly two vertices with odd degrees.
Euler’s Theorem for circuits:
- A connected graph has an Euler circuit if and only if all vertices have even degrees.