Logic & Programming GFACT Practice Questions (Page 1)

Questions 1–5

1. 1application · medium

   A C developer needs to allocate memory for an array of 10 integers and initialize all elements to zero. Which function is the most appropriate for this task?

   • A`calloc(10, sizeof(int))`
   • B`malloc(10 * sizeof(int))`
   • C`realloc(NULL, 10 * sizeof(int))`
   • D`free(10 * sizeof(int))`
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2. 2foundation · easy

   What is the purpose of the free function in C?

   • ATo check if a memory address is valid
   • BTo set all bytes of a memory block to zero
   • CTo allocate memory for a new variable
   • DTo deallocate memory that was previously allocated with malloc or calloc
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4. 3expert · medium

   A developer is debugging a Python script that calculates the average of a list of numbers. The code is: total = 0; for num in numbers: total += num; average = total / len(numbers). The script raises a ZeroDivisionError. What is the most likely cause?

   • AThe list contains non-numeric values
   • BThe variable 'total' is not initialized
   • CThe loop does not execute
   • DThe list 'numbers' is empty
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5. 4foundation · easy

   Which programming construct repeatedly executes a block of code as long as a condition remains true?

   • Aif-else statement
   • Bswitch statement
   • Cfunction definition
   • Dwhile loop
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6. 5foundation · easy

   In a program, function A calls function B, and function B calls function C. After C completes, which function resumes execution?

   • AThe main function
   • BFunction A
   • CFunction B
   • DThe operating system
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