MCQOPTIONS
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MCQOPTIONS
This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Java knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Garbage Collection can be controlled by a program? |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
Which of the below is not a memory leak solution? |
| A. | Code changes |
| B. | JVM parameter tuning |
| C. | Process restart |
| D. | GC parameter tuning |
| Answer» D. GC parameter tuning | |
| 3. |
How to get prints of shared object memory maps or heap memory maps for a given process? |
| A. | jmap |
| B. | memorymap |
| C. | memorypath |
| D. | jvmmap |
| Answer» B. memorymap | |
| 4. |
Which exception is thrown when java is out of memory? |
| A. | MemoryFullException |
| B. | MemoryOutOfBoundsException |
| C. | OutOfMemoryError |
| D. | MemoryError |
| Answer» D. MemoryError | |
| 5. |
What is -Xms and -Xmx while starting jvm? |
| A. | Initial; Maximum memory |
| B. | Maximum; Initial memory |
| C. | Maximum memory |
| D. | Initial memory |
| Answer» B. Maximum; Initial memory | |
| 6. |
Which of the following is a garbage collection technique? |
| A. | Cleanup model |
| B. | Mark and sweep model |
| C. | Space management model |
| D. | Sweep model |
| Answer» C. Space management model | |
| 7. |
Where is a new object allocated memory? |
| A. | Young space |
| B. | Old space |
| C. | Young or Old space depending on space availability |
| D. | JVM |
| Answer» B. Old space | |
| 8. |
GARBAGE_COLLECTION_CAN_BE_CONTROLLED_BY_A_PROGRAM??$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 9. |
Which of the below is not a Java Profiler? |
| A. | JVM |
| B. | JConsole |
| C. | JProfiler |
| D. | Eclipse Profiler |
| Answer» B. JConsole | |
| 10. |
What happens to the thread when garbage collection kicks off? |
| A. | The thread continues its operation |
| B. | Garbage collection cannot happen until the thread is running |
| C. | The thread is paused while garbage collection runs |
| D. | The thread and garbage collection do not interfere with each other |
| Answer» D. The thread and garbage collection do not interfere with each other | |
| 11. |
Which of the following has the highest memory requirement? |
| A. | Heap |
| B. | Stack |
| C. | JVM |
| D. | Class |
| Answer» D. Class | |