ANVE Sample Questions & Answers

Forensic WDR (Wide Dynamic Range) is essential for handling scenes with both very bright and very dark areas, such as a backlit entrance. It captures multiple exposures and combines them to produce a clear image where details are visible in both the bright exterior and the darker interior.

Lightfinder technology provides high-quality color video in near-darkness. This is critical for capturing identifiable details at night when ambient light is low, which is a common condition at store entrances after business hours.

IGMP (Internet Group Management Protocol) Snooping is a crucial feature for managing multicast traffic. A managed switch with IGMP Snooping listens to the IGMP conversations between hosts and routers. It learns which switch ports are connected to devices that have requested to join a specific multicast group. The switch then forwards multicast traffic only to those specific ports, preventing it from being broadcast to all ports and flooding the network.

To achieve a high pixel density like 250 px/m at a distance of 20 meters, a narrow field of view is needed. This requires a lens with a long focal length, known as a telephoto lens. A wide-angle lens would provide a much lower pixel density at that distance, suitable for overview but not identification. The Axis Lens Calculator or manual formulas would confirm that a focal length of 10mm or more is necessary.

The ARTPEC (Axis Real Time Picture Encoder) SoC is the specialized processor at the core of an Axis camera. It is responsible for a wide range of critical functions, including image processing (like WDR and Lightfinder), video encoding/compression (H.264/H.265), and running on-camera analytics applications. It is essentially the 'brain' of the camera.

AXIS Design Tool is a comprehensive software application that allows users to find the right cameras, place them on imported maps or floor plans, visualize coverage areas, estimate bandwidth and storage, and generate a complete bill of materials including all necessary accessories. It is the primary tool for creating detailed project designs and quotations.

This phenomenon is known as IR focus shift or chromatic aberration. Visible light and infrared light have different wavelengths and focus at slightly different points. If the camera was focused during the day (using visible light), the focus can shift and become blurry when the IR illuminators turn on at night. Cameras with IR-corrected lenses minimize this, but the best practice for installation is to perform the final focus adjustment at night with the IR on, or use the camera's built-in focus assistant which accounts for this.

Signed firmware ensures that only firmware cryptographically signed by Axis can be installed on the device. The camera verifies this signature before applying any update, preventing the installation of unauthorized or malicious firmware.

Secure Boot is a process that verifies the digital signature of the camera's firmware every time it starts up. This ensures that the firmware has not been compromised or altered since it was signed by Axis, preventing the device from booting with tampered code.

The main advantage of H.265 (High Efficiency Video Coding) over its predecessor, H.264, is its improved compression efficiency. H.265 can deliver the same level of video quality at approximately half the bitrate, which translates to significant savings in both network bandwidth and storage capacity. This is especially beneficial for high-resolution cameras like 4K.

The IEEE 802.3af (PoE) standard can deliver up to 15.4W of power from the source, with about 12.95W available at the device. This is insufficient for the camera's 25W maximum consumption. The IEEE 802.3at (PoE+) standard can deliver up to 30W from the source, with about 25.5W available at the device, which is sufficient to power the camera reliably, even with its heaters and PTZ motors active.

This statement is true. AXIS Device Manager is a powerful, free tool designed for bulk management of Axis devices. It can automatically scan the network, identify different device models, find the latest compatible firmware for each, and then deploy the updates to multiple devices simultaneously, significantly streamlining the maintenance process for large installations.