Knowledge of lighting techniques is crucial in the photography exam as it directly impacts the quality of the final images. Understanding how to manipulate light in various ways, such as using natural light, artificial light sources, or reflectors, can greatly enhance the composition, mood, and overall aesthetic of a photograph. Proper lighting techniques also allow photographers to control shadows, highlights, and depth, resulting in more visually striking and professional-looking images. Additionally, knowledge of lighting can help photographers solve common lighting challenges, such as harsh sunlight or low light conditions, to produce successful photographs in any situation. In conclusion, mastering lighting techniques is essential for achieving exceptional results in photography exams.