Axis Communications Updated ANVE Exam Questions and Answers by michaela

"Telephoto lenses have a longer focal length and provide greater magnification, showing more detail of an object at a given distance compared to normal, wide-angle, or fisheye lenses."

— Axis Communications Academy, Network Video Fundamentals, 2022

"A telephoto lens enables viewing objects in detail from a distance."

— Axis Lens Guide White Paper

According to the inverse square law of light, the intensity of light is inversely proportional to the square of the distance from the source. If the light level is 100 lux at 70 meters, at half the distance (35 meters), the light level would increase by a factor of four (since (70/35)^2 = 2^2 = 4). Therefore, the light level at 35 meters would be 400 lux. This principle is widely recognized in lighting and photometric calculations and is supported by Axis documentation related to camera exposure and lighting conditions.

"A parapet mount is designed for rooftop installations or building edges, allowing a camera to be installed on the side of a roof or wall to overlook streets or other areas below."

— Axis Communications, Installation Accessories Guide

"Parapet mounts are ideal for rooftop and wall edge camera installations, providing a stable platform for outdoor surveillance."

— Axis Communications Academy, Network Video Fundamentals, 2022

"Scenes with large areas of uniform color and little movement, such as an empty office, are more compressible without noticeable loss in quality because there is less detail and fewer changes between frames."

— Axis Communications Academy, Network Video Fundamentals, 2022

"Static and simple scenes (e.g., an empty room) require less data and can be compressed more efficiently than complex or busy scenes."

— Axis Web Article: Video Compression