Detecting Memory Leaks CTAL-TTA Practice Questions (Page 2)

Questions 6–10

1. 6foundation · easy

   Which of the following is a common cause of memory leaks in a garbage-collected language such as Java or C#?

   • AUsing too many local variables in a single method, exhausting the stack.
   • BAllocating memory on the stack instead of the heap, causing the program to run out of stack space.
   • CUnintentionally retaining references to objects that are no longer needed, preventing the garbage collector from reclaiming them.
   • DForgetting to call free() on memory allocated with malloc().
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2. 7application · medium

   A Java web application processes user uploads. After each upload, the application stores a reference to the uploaded file's byte array in a static cache that is never cleared. Over time, the application's heap usage grows steadily and eventually triggers OutOfMemoryError. Which type of memory leak cause is primarily demonstrated here?

   • AIncorrect use of the finalize() method
   • BUnreleased references held in a static collection
   • CImproper handling of native resources like file handles
   • DCircular references between objects
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4. 8application · medium

   A .NET application exhibits gradually increasing memory usage. A test analyst wants to identify which objects are not being garbage collected. Which dynamic analysis technique is most appropriate?

   • ARunning a code coverage tool during tests
   • BHeap profiling with a tool like dotMemory
   • CAdding Console.WriteLine statements to track object creation
   • DStatic code review focusing on using statements
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5. 9application · medium

   A test analyst is monitoring a Java application's garbage collection logs. The logs show that the heap usage keeps increasing after each full GC, and the old generation never shrinks. What does this indicate?

   • AThe garbage collector is not running
   • BThe application is using too much CPU
   • CA memory leak is likely present
   • DThe application is creating too many threads
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6. 10application · medium

   A test analyst needs to compare static and dynamic analysis tools for memory leak detection. Which statement correctly contrasts these approaches?

   • ADynamic analysis can find leaks without executing the code
   • BStatic analysis can find potential leaks without running the code, while dynamic analysis detects leaks during execution
   • CStatic analysis is only useful for C++ code
   • DStatic analysis is always more accurate than dynamic analysis
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