ANVE Axis Communications Axis Network Video Exam Free Practice Exam Questions (2025 Updated)

Focusing a camera with an auto iris is more accurate when set during lowlight conditions. In low light, the iris opens wider, resulting in a shorter depth of field. This forces the focus to be more precise within that narrower range, ensuring that the focus is set correctly. When lighting conditions improve and the iris closes down, the depth of field increases, maintaining a broader range of focus.

3D privacy masking in Axis cameras refers to a privacy mask that changes its shape depending on the angle of view. This advanced feature ensures that the privacy mask effectively covers the designated area regardless of the camera’s viewing angle, providing consistent privacy protection as the camera moves or zooms.

Managed switches offer a variety of security features essential for maintaining the integrity and confidentiality of network data. IEEE 802.1X port-based authentication ensures that only authorized devices can connect to the network by requiring each device to authenticate itself before gaining access. HTTPS encryption provides secure communication over the network by encrypting the data being transmitted, protecting it from interception and tampering. These two features are critical for securing network traffic and preventing unauthorized access. Axis Network Video documentation highlights the importance of these features in maintaining a secure video surveillance network.

When using the view area functionality in Axis cameras, each view area can have its own independent video stream. Additionally, each view area can have its own exposure control setting and text overlay setting. This allows for customized video streams with different exposure settings tailored to specific areas within the camera's field of view, as well as unique text overlays for each view area, providing flexibility in video management and presentation.

When a camera is zoomed out, the field of view increases, causing each object or movement to cover fewer pixels. As a result, more pixels need to change to trigger motion detection. This means the motion detection sensitivity may be reduced unless adjustments are made to the detection settings. For more information, refer to Axis Communications' motion detection setup guides.

When installing Axis cameras outdoors, it's crucial to protect the equipment from electrical surges, which can occur due to lightning or other power disturbances. Installing a surge suppressor in front of each camera helps prevent damage from these surges, ensuring the longevity and reliability of the camera system. While grounding endpoints and using UPS for the network switch are also good practices, surge protection directly in front of each camera is specifically emphasized in Axis’s best practices for outdoor installations.

Changing the capture mode on an AXIS P1346 from 2048x1536 (3 MP) to 1920x1080 (HDTV) affects both the minimum illumination and maximum frame rate. When switching to a lower resolution (HDTV), the camera's sensitivity to light improves, resulting in a decrease in the minimum illumination required to produce a clear image. Additionally, the maximum frame rate increases as the camera processes fewer pixels, allowing it to capture and transmit frames at a higher rate. Axis Network Video documentation provides detailed information on how different capture modes impact camera performance, including light sensitivity and frame rates.

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Continuous guard tours involve constant movement of the camera, which limits the effectiveness of H.264 compression. H.264 achieves high compression ratios by identifying and removing redundancies between frames, but continuous motion reduces these redundancies, leading to higher bit rates and, consequently, increased storage consumption. For more details, refer to Axis Communications' technical documentation on H.264 compression and PTZ camera operations.

To comply with SMPTE (Society of Motion Picture and Television Engineers) standards for HDTV, the camera must meet specific criteria including frame rate, aspect ratio, resolution, and color fidelity. These standards ensure high-quality video suitable for professional broadcast and security applications. Axis cameras designed for HDTV compliance adhere to these standards, providing high-definition video quality. For detailed standards, refer to Axis Communications' documentation on HDTV compliance.

Among the given options, the requirement for face recognition at 70 meters (230 feet) is the most demanding and often unrealistic for most surveillance cameras. Current camera technology, even with high resolution and frame rates, typically cannot achieve reliable face recognition at such a long distance. Therefore, option D is the correct answer. For more detailed information, refer to Axis Communications' specifications on camera capabilities and face recognition technologies.

Audio detection in Axis cameras is used to detect changes in decibel levels, which can indicate unusual or noteworthy events such as alarms, breaking glass, or raised voices. This functionality does not necessarily require a built-in microphone; it can also work with external microphones. The primary function is to trigger alerts or recordings based on significant changes in the audio environment. Axis Network Video documentation outlines the use of audio detection for enhancing security by monitoring for specific sound patterns or levels.

The Axis pixel counter is a tool that allows users to verify that the camera's resolution meets the requirements for a specific scene. This is particularly useful in ensuring that critical areas are captured with sufficient detail for identification and analysis. The pixel counter helps in confirming that the pixel density is adequate for the intended surveillance purposes. Detailed explanations can be found in Axis Communications' camera setup and configuration documentation.

The P-iris (Precise Iris Control) technology in Axis cameras ensures optimal image quality by precisely controlling the iris position. In bright lighting conditions, P-iris prevents the iris from closing too much, which can cause blurring due to diffraction. Instead, it maintains an optimal iris opening to balance depth of field and image sharpness. For more information, consult Axis Communications' technical notes on P-iris technology.

To address the blurring that's occurring with faster moving objects in the image, adjusting the exposure settings is the best option. Specifically, reducing the exposure time (shutter speed) will help in capturing clearer images of fast-moving objects by reducing motion blur. This adjustment allows the camera to capture less light per frame, effectively freezing the motion and reducing the blur associated with movement.

To identify people with 80 pixels per face in a hallway that is 2.5 meters wide, a minimum resolution of 1280x720 (720p) is needed. This resolution ensures sufficient pixel density to capture detailed facial features necessary for identification purposes. Given the width of the hallway and the required pixel density, 720p provides the necessary coverage and detail.

When using Axis' Corridor Format, the image is rotated 90 degrees, changing the aspect ratio to 9:16. This format is particularly useful for monitoring narrow, vertical areas such as hallways, corridors, and aisles, maximizing the camera's field of view in such environments and ensuring better coverage of the intended area while minimizing wasted pixels on unimportant regions like walls.

H.264 is a video compression standard that adjusts the bit rate based on the motion in the scene. Increased motion results in a higher bit rate because more data is required to accurately represent the changes between frames. Additionally, a longer Group of Video (GOV) length, which means fewer I-frames and more P-frames in a sequence, reduces the overall bit rate since I-frames are larger and require more data. References can be found in the Axis Communications documentation and technical white papers on H.264 compression.