Programming language and a bit of algorithm

What is the main difference between a compiler and an interpreter?

A) A compiler executes code line by line

B) An interpreter translates the entire program at once

C) A compiler translates the code into machine language before execution

D) Both do exactly the same thing

In Python, what will the following code do: sorted([3, 1, 2])?

A) Return [1, 2, 3]

B) Return [3, 2, 1]

C) Return [3, 1, 2]

D) Raise an error

Which of the following is a linear data structure?

A) Tree

B) Graph

C) Stack

D) Heap. What is Big O notation used for?

A) Measuring the actual runtime of a program

B) Describing the worst-case growth of an algorithm

C) Counting the number of lines of code

D) Measuring memory usage in bytes

Which of these is a loop control structure in Python?

A) if-else

B) for

C) switch

D) goto

In an array, what is the time complexity to access an element by index?

A) O(1)

B) O(n)

C) O(log n)

D) O(n^2)

Which of these is an example of a conditional statement in Python?

A) while x < 5

B) if x > 10

C) for i in range

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