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

The maximum distance from a midspan to a camera requiring PoE+ (25.5 W) is 100 meters (328 feet). This distance limitation is due to the standard Ethernet cable length limit, ensuring effective power delivery and data transmission over the network.

The AXIS P3807-PVE and AXIS Q3819-PVE are multi-sensor cameras. Multi-sensor cameras have multiple image sensors within a single camera housing, providing wide-area coverage and high-resolution images. These cameras can capture different angles simultaneously, making them ideal for large areas where comprehensive coverage is needed. References: Axis Communications product specifications for multi-sensor cameras.

Typically, a system designer calculates the pixel density based on the horizontal resolution and the field of view. Pixel density is crucial in determining the level of detail a camera can capture in a specific area. Horizontal resolution refers to the number of pixels along the horizontal axis of the image sensor, while the field of view is the extent of the observable area captured by the camera. This calculation helps in ensuring that the camera setup meets the surveillance requirements.

The three types of field of view are telephoto, wide-angle, and normal. A wide-angle lens provides a broader view, a normal lens offers a standard view comparable to the human eye, and a telephoto lens allows for a narrower field of view with greater magnification. Axis Communications' technical resources detail these field of view options for different camera lenses.

Utilizing external IR illumination with 940 nm provides the benefit of covert surveillance. IR light at 940 nm is almost invisible to the human eye, making it ideal for discreet monitoring without drawing attention to the presence of the camera. This allows for effective surveillance while remaining undetected by intruders. Axis Communications' product documentation on IR illumination confirms this advantage of 940 nm IR light.

Pixel density describes the number of pixels per meter (or foot) horizontally. This metric is crucial for determining the level of detail that a camera can capture over a given area, affecting the clarity and usability of the video for tasks such as identification and recognition. Higher pixel density results in better image detail. Axis Communications' technical resources on image quality and resolution confirm this definition of pixel density.

"The image shows a coaxial cable terminated with a BNC (Bayonet Neill–Concelman) connector. This type of connection is commonly used for analog video and some specialized network applications such as Axis video encoders."

— Axis Communications Academy, Network Video Fundamentals, 2022

"BNC connectors are standard for coaxial cabling in CCTV and video encoder installations."

— Axis Video Encoder Product Page

"A lens with a lower f-number (larger aperture) allows more light to reach the image sensor, which is beneficial for low-light performance. For example, an aperture of f/2.0 lets in significantly more light than f/3.6, f/5.6, or f/8.0."

— Axis Communications Academy, Network Video Fundamentals, 2022

"The amount of light entering the camera is inversely related to the f-number. The lower the f-number, the wider the aperture, and thus, more light is gathered by the image sensor."

— Axis Communications, Lens Guide

A PoE switch with a power budget of 90 W can power 12 class 2 devices. Class 2 PoE devices typically require up to 7.5 W each. By dividing the total power budget (90 W) by the power requirement per device (7.5 W), we get 12 devices. This calculation aligns with the PoE standards defined in IEEE 802.3af/at, as outlined in Axis Communications' technical resources.

The fisheye view from a 360° panoramic camera can be dewarped both on live video streams and stored video material. Dewarping is a process that corrects the distortion inherent in fisheye lenses to present a more natural-looking image. This feature is supported in Axis cameras and video management software, allowing users to view undistorted video in real-time and from recorded footage. Axis documentation confirms that dewarping functionality is available for both live and archived video streams.

In an IP-based video system, audio can be transmitted alongside video over the same network, allowing for integrated audio-video surveillance. This enables the simultaneous monitoring of both audio and visual data, enhancing situational awareness. Additionally, some Axis video encoders support audio functionality with analog cameras, allowing these older devices to be integrated into modern IP-based systems and take advantage of audio capabilities. Axis documentation highlights these features, emphasizing the seamless integration of audio and video in IP surveillance solutions and the extended functionality provided by video encoders.

Fiber optic cables are ideal for long-distance data transmission due to their low signal attenuation and high bandwidth capabilities. Unlike copper cables, fiber optics can transmit data over several kilometers without significant loss of signal quality. They are also immune to electromagnetic interference, making them suitable for environments with high electrical noise. Axis technical references on networking confirm that fiber optic cables are preferred for long-distance and high-performance networking applications.

"Axis body worn cameras are designed to offload their recordings via docking stations, ensuring secure and efficient transfer of video files."

— Axis Body Worn Solutions Overview

"Docking stations are used for offloading, charging, and management of body worn camera data."

— Axis Communications Academy, Network Video Fundamentals, 2022

Axis Secure Remote Access simplifies making Axis cameras available over the internet without the need for complex network configurations. This service provides a secure, encrypted connection to access and manage Axis devices remotely. By using Axis Secure Remote Access, users can avoid issues related to NAT traversal and firewall configurations, ensuring a reliable and secure remote connection. Detailed instructions and benefits of using Axis Secure Remote Access are outlined in Axis' support documentation.

"The compass-style indicators in the user interface display the current pan direction of a PTZ camera. This helps operators orient themselves and know which direction the camera is facing in real-time."

— Axis Communications Academy, Network Video Fundamentals, 2022

"On-screen compass indicators are designed to show operators the camera’s current field of view, making navigation and incident tracking easier."

— Axis PTZ Control User Manual

When zooming in on an object with a varifocal or zoom lens, the light sensitivity of the camera generally decreases. This is because zooming in reduces the amount of light reaching the sensor due to the longer focal length and narrower aperture, which can result in a darker image. This effect is more pronounced in cameras with lower-quality lenses or insufficient lighting. Axis Network Video documentation explains how lens properties and zoom settings can impact light sensitivity and overall image quality.

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To utilize IEEE 802.1X for connecting a camera to the network, the following are required:

A. An Ethernet switch with support for IEEE 802.1X, which ensures that only authorized devices can connect to the network.

C. A RADIUS server, which is used to manage authentication, authorization, and accounting (AAA) for network access control.

These components are essential for setting up secure network access using IEEE 802.1X.

True security when using HTTPS on Axis products is implemented after a signed certificate is installed. This certificate ensures that the communication between the camera and the server is encrypted and authenticated, providing a secure channel that prevents unauthorized access and tampering.

Using a smoked (tinted) dome on a camera reduces light sensitivity because the tinted material filters the amount of light that reaches the camera sensor. This can result in lower image quality, especially in low-light conditions. The decrease in light sensitivity does not affect color fidelity, field of view, or infrared capabilities directly. For more information, refer to Axis Communications' technical notes on dome coverings and their impact on camera performance.