28.5.3. GC Phases

Try these first

1. 1.

   What is the main purpose of the Mark phase in garbage collection?

   Hint

   Think about what determines if an object can be collected.

2. 2.

   Name one action that occurs during the Sweep phase.

   Hint

   What happens to objects that are not in use?

3. 3.

   What does the Mark phase do?

   • Reclaims unmarked objects
   • Identifies reachable objects
   • Rearranges live objects

   Hint

   Consider the initial step in managing memory.

4. 4.

   Is the Sweep phase concerned with reclaiming memory from marked objects?

   • True
   • False

   Hint

   Think about what 'sweep' implies in this context.

5. 5.

   Analyze the consequences of skipping the Compact phase after the Sweep phase in a high-load application. What issues could arise?

   Hint

   Think about how fragmentation might affect the availability of memory.

6. 6.

   Create a scenario where the GC phases would interact to prevent a memory leak. Explain.

   Hint

   Reflect on the lifecycle of frequently created objects.