Instructions

  • 1. Your final score will reflect your grasp of the concepts—approach each question with precision.
  • 2. Thoroughly review each solution before proceeding to ensure full understanding.
  • 3. Final results will be available after submission to provide insights into areas for further improvement.
  • 4. Maintain academic integrity—plagiarism undermines learning and professional growth.
  • 5. Once submitted, responses are final, so ensure you’re confident in your answers.
  • 6. These challenges are designed to test practical knowledge; apply your skills as you would in real-world scenarios.

All Problems

Question

Action

What does the "sweep" phase do in garbage collection?

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In generational garbage collection, what is typically true about the old generation?

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What is the benefit of generational garbage collection?

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What type of garbage collection algorithm does the V8 JavaScript engine use?

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What does the term "heap fragmentation" refer to in memory management?

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How does JavaScript handle cyclic references in memory management?

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What can happen if memory fragmentation becomes too high?

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What is "generational garbage collection"?

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Which generation typically contains short-lived objects?

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How can you trigger garbage collection in JavaScript?

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What does the "sweep" phase do in garbage collection?

Allocates new memory
Reclaims memory from unreferenced objects
Marks objects for deletion
Allocates memory to the stack

In generational garbage collection, what is typically true about the old generation?

It contains short-lived objects
Objects are collected frequently
It contains long-lived objects
The garbage collection is skipped for old generation

What is the benefit of generational garbage collection?

Improves the performance by focusing on short-lived objects
Reduces the total memory usage
Prevents all memory leaks
Skips the garbage collection process for older objects

What type of garbage collection algorithm does the V8 JavaScript engine use?

Mark-and-sweep
Generational
Reference counting
Stack-based

What does the term "heap fragmentation" refer to in memory management?

Broken links in the DOM
When free memory is divided into small, non-contiguous blocks
When memory is used for global variables
Memory being allocated inefficiently to variables

How does JavaScript handle cyclic references in memory management?

It throws an error
It ignores cyclic references
The garbage collector can detect and manage cyclic references
Cyclic references are treated as global variables

What can happen if memory fragmentation becomes too high?

The garbage collector runs more frequently
Memory allocation fails
Memory leaks occur more often
The heap is automatically resized

What is "generational garbage collection"?

Collecting objects in generations
A strategy to improve garbage collection efficiency
A method to reduce memory leaks
All of the above

Which generation typically contains short-lived objects?

Young generation
Old generation
Temporary generation
Permanent generation

How can you trigger garbage collection in JavaScript?

By calling a specific function
It is managed automatically by the engine
By freeing all variables
By forcing a refresh