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A developer wants two independent tasks to execute simultaneously while sharing the same memory space. Which approach is most appropriate?

Create two threads within the same process

A Java application performs file downloading and user interface rendering. The UI becomes unresponsive during downloads. What is the BEST solution?

Move downloading logic to a separate thread

What is the PRIMARY advantage of implementing Runnable instead of extending Thread?

Supports multiple inheritance of behavior

A programmer directly invokes run() instead of start(). What will most likely happen?

The method executes in the current thread

A banking application processes deposits and withdrawals simultaneously. Which concept makes this possible?

Concurrency

A context switch occurs when:

The CPU stores and restores thread states

Which scenario demonstrates true multithreading?

Multiple tasks sharing execution time

Why might a developer choose join()?

To wait for another thread to finish

Suppose Thread A calls join() on Thread B. What happens?

Thread A waits for B

A programmer wants a thread to pause for five seconds. Which method should be used?

sleep()

Why is multithreading beneficial in a web server?

Allows handling multiple client requests concurrently

A thread's priority is set to 10. What can be concluded?

It has greater chance of CPU access

Which statement about thread priority is TRUE?

Priority affects scheduling decisions but not guarantees

A thread's isAlive() method returns false. Which conclusion is MOST reasonable?

The thread has terminated

Why is the main thread considered special?

It starts execution of the application

Which design is more scalable for creating hundreds of worker tasks?

Implementing Runnable tasks

A thread is waiting for a network response. What benefit does multithreading provide?

Allows other threads to continue working

A developer observes unpredictable output ordering among threads. Why?

Thread scheduling is controlled by the OS scheduler

What is the biggest risk of assuming thread execution order?

Unreliable program behavior

A thread is sleeping. Which statement is correct?

It temporarily stops execution

Which method serves as the entry point of a thread?

run()

What happens if start() is never called?

The thread never begins execution as a separate thread

A thread scheduler primarily determines:

CPU allocation among threads

Which situation best illustrates concurrency?

Downloading a file while updating a progress bar

Why is Runnable often preferred in enterprise applications?

It allows separation of task and thread management

If Thread A sleeps for 10 seconds, what happens to other threads?

They may continue executing

A process differs from a thread because a process:

Is a collection of associated threads

Which scenario requires join() most?

Generating a report after data processing threads finish

A programmer creates three threads and expects exact output order. Why is this problematic?

Scheduling is nondeterministic

What is the default thread priority in Java?

5

Which priority value is invalid?

11

A system creates too many threads unnecessarily. What is a likely consequence?

Increased overhead and context switching

What is the purpose of Thread.currentThread()?

Returns the currently executing thread object

Which statement best explains shared memory?

Threads within a process can access common data

Which feature makes multithreading suitable for games?

Supports simultaneous input, rendering, and audio processing

What is the effect of calling join() after start()?

Waits until the specified thread finishes

Which scenario most likely benefits from sleep()?

Polling a resource periodically

What is the main purpose of setName()?

Simplify debugging and identification

A developer notices that high-priority threads do not always execute first. Why?

Priority is only a scheduling hint

Which method helps determine whether a thread has completed execution?

isAlive()

Why might extending Thread be less flexible?

Java allows only one class inheritance

A thread completes execution. What is its state regarding isAlive()?

false

Which design best separates business logic from thread execution?

Runnable implementation

What is the likely result if a program depends on thread execution order without synchronization?

Inconsistent outcomes

Which application is LEAST likely to benefit from multithreading?

Batch calculator performing one simple operation once

What is the most accurate description of concurrency?

Simultaneous management of multiple tasks

Why is context switching necessary?

To allow multiple threads to share CPU time

A developer wants to ensure that data processing completes before report generation starts. Which method is most suitable?

join()

Which statement best reflects real-world thread scheduling?

Scheduling decisions depend on the OS and JVM implementation

A software architect is designing a system that must remain responsive while performing long-running tasks. Which principle should guide the design?

Divide tasks into concurrent threads when appropriate