Free Practice Questions for Axis Communications ANVE Exam

Quality of Service (QoS) in networking means that different data packets can have different priorities on the network. QoS mechanisms ensure that critical or time-sensitive data, such as video or voice, receive higher priority and guaranteed bandwidth over less critical data. This helps maintain the performance and reliability of essential services even when the network is congested. Axis Communications' technical guides on networking principles and QoS confirm this definition and its importance in IP surveillance systems.

"An IR-pass filter blocks visible light and allows only infrared light to reach the camera sensor. This is commonly used for dedicated infrared imaging applications."

— Axis IR Filter Technologies

"An IR-cut filter, by contrast, blocks infrared light and lets visible light through."

— Axis Communications Academy, Network Video Fundamentals, 2022

AXIS M3057-PLVE MkII and AXIS P1378-LE both have built-in IR LED illumination. This feature is crucial for enhancing visibility in low-light conditions or complete darkness, making them suitable for various surveillance applications. The built-in IR LEDs ensure that these cameras can provide clear images even in challenging lighting environments.

Outdoor-ready cameras from Axis can be equipped with a cooling fan and a heater element to handle varying weather conditions. The cooling fan helps manage high temperatures by preventing overheating, while the heater element ensures the camera operates effectively in cold environments by preventing frost and condensation. These features allow the camera to maintain optimal performance and reliability regardless of the weather, as specified in Axis' product datasheets and technical specifications for outdoor models.

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The main purpose of the laser module in Axis PTZ cameras is to achieve sharp focus. The laser technology enables precise focusing by accurately measuring the distance to objects in the camera's field of view. This results in clearer images, especially in dynamic and low-light environments, where traditional focusing methods might struggle.

"Lossy compression algorithms such as H.264 and H.265 achieve greater bitrate reduction by discarding some image information, which is not recoverable. This enables efficient transmission and storage while maintaining acceptable image quality."

— Axis Communications Academy, Network Video Fundamentals, 2022

"Lossy compression reduces the file size significantly by removing information that is not needed for human viewing. The removed content cannot be restored."

— Axis Web Article: Video Compression

The camera shown in the image is an Axis multidirectional camera, which typically features multiple sensors to cover a wide area. Based on the design and common configurations of Axis multidirectional cameras, it has a total of 4 camera sensors. Each sensor can be independently adjusted to capture different angles and areas, providing comprehensive surveillance coverage. Axis documentation on multidirectional cameras confirms that these models generally come with four sensors for optimal monitoring.

A visual camera enables the detection and identification of a person’s face. Visual cameras capture detailed images using visible light, which is necessary for facial recognition and identification applications. While radar, passive infrared sensors, and thermal cameras are useful for detecting movement and heat signatures, they do not provide the detailed imagery required for facial identification. This functionality is detailed in Axis Communications' documentation on camera capabilities.

AXIS Device Manager is free of charge. This tool provides comprehensive management capabilities for Axis devices without any additional licensing fees. It allows users to efficiently manage, configure, and maintain their Axis network cameras and other devices, ensuring optimal performance and security. Axis offers this tool as part of their commitment to providing user-friendly and cost-effective solutions, as detailed in their product information and support resources.

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The field of view of a camera is determined by the focal length of the lens and the size of the sensor. The focal length affects how wide or narrow the view appears, while the sensor size impacts the overall field of view captured by the camera. Axis technical specifications detail how different combinations of focal length and sensor size influence the camera's field of view, allowing for precise control over what is captured in the frame.