Examples of Automatic Processing in Encoding Memory

A student spends several hours intensely studying a textbook for an important exam, focusing on memorizing key definitions and complex theories. The next day, during the exam, they are surprised to find they can vividly recall the specific location of a diagram on a page (e.g., 'it was in the top right corner'), even though they never made a conscious effort to remember its position. Which of the following does this unintentional recall of the diagram's location best illustrate?

A student is walking across campus to the library, mentally reviewing the key points for their upcoming history exam. On the way, a friend stops them and asks them to remember a specific locker combination: 24-11-36. The student repeats the numbers to themself a few times before continuing on their way. Later that day, which piece of information was most likely encoded into the student's memory without conscious effort?