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WGU Foundations of Computer Science Sample Questions:

1. What Python code would return the value 40 from np_2d, where np_2d = np.array([[1, 2, 3, 4], [10, 20, 30,
40]])?

A) np_2d[1, 3]
B) np_2d[0, 4]
C) np_2d[3, 1]
D) np_2d[4, 1]

2. What is the purpose of the pointer element of each node in a linked list?

A) To store the data value
B) To indicate the current position
C) To indicate the next node
D) To keep track of the list size

3. What is the method for changing an element in a Python list?

A) Use square brackets and the equals sign
B) Use curly brackets and the equals sign
C) Use the del keyword and the element's value
D) Use parentheses and the plus sign

4. What is the time complexity of a binary search algorithm?

A) O(n)
B) O(2^n)
C) O(log n)
D) O(n^2)

5. Which type of files are meant to be inaccessible to standard users, but can be critical in terms of functionality?

A) System files
B) Backup files
C) Log files
D) Extension files

Solutions: