Axis Communications ANVE Exam Dumps & Practice Test Questions

Question 1:

What type of device is most commonly used to upgrade an analog surveillance system to an IP-based camera system while preserving existing coaxial cabling?

A. Video encoder
B. PoE splitter
C. Network relay
D. Ethernet over coax adapter

Correct Answer: D

Explanation:

When transitioning from a traditional analog CCTV system to a modern IP-based video surveillance solution, organizations often aim to reuse their existing coaxial infrastructure to minimize costs and avoid disruptive rewiring. Analog systems typically rely on coaxial cables, whereas IP cameras transmit data over Ethernet. To bridge the technological gap between these two standards, a specific solution is required.

The most effective device for this task is the Ethernet over coax adapter (Option D). This device enables IP data transmission—normally confined to Ethernet cabling—to travel across existing coaxial cables. It essentially acts as a media converter, translating signals between the two technologies. This is especially beneficial in environments like large office buildings, hospitals, schools, or industrial complexes where existing coaxial cable runs are long, embedded in walls, and expensive to replace.

Let’s examine the incorrect options to understand why Option D stands out:

• Option A – Video encoder: A video encoder converts the analog signal from an analog camera into a digital stream that can be sent across an IP network. It’s used when retaining the analog camera but making its video available over IP. However, the question assumes a replacement with IP cameras, not retention of analog ones, so a video encoder isn’t needed here.

• Option B – PoE splitter: This device divides power and data from a Power over Ethernet cable to support non-PoE devices. While helpful for power distribution, it does not enable communication across coaxial cabling, and thus is irrelevant in this scenario.

• Option C – Network relay: The term “network relay” is vague and not typically associated with video surveillance system upgrades. It may refer to traffic forwarding or routing functions, but it has no specific role in IP camera conversions involving coaxial cable reuse.

By contrast, Ethernet over coax adapters are purpose-built for this type of transition. They support data rates sufficient for high-quality video streaming, ensure minimal signal loss, and offer plug-and-play compatibility in many cases.

In summary, Option D is the ideal solution because it allows IP-based surveillance equipment to operate seamlessly over legacy coaxial installations, offering a cost-effective and practical migration path to modern digital video systems.

Question 2:

Two surveillance cameras are each streaming video at a constant rate of 6 Mbps. If these streams are recorded continuously for one hour, how much storage space is required to save the footage?

A. 2.6 GB
B. 5.4 GB
C. 11.4 GB
D. 24.2 GB

Correct Answer: B

Explanation:

To calculate how much storage space is needed to record video footage from two IP cameras, we need to convert their streaming bitrates into a data size over a specified period—in this case, one hour. The given bitrate is 6 megabits per second (Mbps) per camera, which is a standard rate for HD video surveillance.

Here’s the step-by-step breakdown:

1. Determine total bitrate:
   Since each camera streams at 6 Mbps, two cameras stream at:
   6 Mbps × 2 = 12 Mbps

2. Convert time to seconds:
   One hour = 60 minutes × 60 seconds = 3600 seconds

3. Calculate total data in megabits:
   12 Mbps × 3600 seconds = 43,200 Megabits

4. Convert megabits to megabytes:
   There are 8 bits in a byte, so:
   43,200 ÷ 8 = 5,400 Megabytes

5. Convert megabytes to gigabytes:
   There are 1024 MB in a GB:
   5,400 ÷ 1024 ≈ 5.27 GB

Thus, the total storage requirement is approximately 5.27 GB, which rounds up to 5.4 GB, making Option B the correct answer.

Let’s consider the other options and clarify the confusion:

• Option A (2.6 GB): This may suggest a single-camera scenario at a lower bitrate or half the duration. It’s incorrect based on the full 12 Mbps for one hour.

• Option C (11.4 GB): This would be correct if the bitrate were 12 MBps (megabytes per second), not megabits. That would equate to a much higher storage requirement and is not consistent with standard streaming bitrates.

• Option D (24.2 GB): Even higher and way off base—this would represent an unrealistic bitrate or additional data (e.g., 4K streams with no compression).

In professional surveillance setups, such calculations help determine the required storage capacity, especially for NVRs (Network Video Recorders). These calculations also assist in network design, ensuring the bandwidth can handle multiple simultaneous streams.

Therefore, given two cameras at 6 Mbps each, recording continuously for one hour, the accurate and most reasonable estimate of storage required is 5.4 GB, or Option B.

Question 3:

Which two components primarily influence a camera's field of view (FoV) in surveillance or imaging systems?

A. the focal length and the exposure settings
B. the focal length and the sensor size
C. the sensor size and the aperture
D. the exposure settings and the sensor size

Correct Answer: B

Explanation:

In video surveillance and digital imaging, understanding what portion of a scene a camera can capture—known as the field of view (FoV)—is critical to system design. Two essential elements govern this: the focal length of the lens and the sensor size of the camera.

Focal length is the distance (in millimeters) between the lens and the image sensor when the subject is in focus. This determines the angle of view, or how much of the scene the camera can observe. Lenses with shorter focal lengths (e.g., 2.8mm) offer a wider FoV, capturing more of the surroundings. In contrast, longer focal lengths (e.g., 12mm or higher) provide a narrower FoV, effectively zooming in on distant objects. Thus, the focal length has a direct and predictable effect on the image’s magnification and coverage area.

Sensor size is equally critical. This refers to the physical dimensions of the camera's imaging sensor. A larger sensor (like a 1-inch or full-frame sensor) can capture a broader portion of the image projected by the lens, leading to a wider field of view. Conversely, a smaller sensor captures only the center portion of the lens’s image projection, resulting in a cropped or narrower view. This concept is similar to the crop factor used in photography when comparing cameras of different sensor sizes.

Let’s clarify why the other options are incorrect:

• Aperture controls the amount of light entering the lens and affects depth of field, but not the field of view.

• Exposure settings, such as shutter speed, ISO, and aperture, influence image brightness and motion blur, but they do not impact how wide or narrow the view is.

Therefore, focal length and sensor size are the only two variables that determine the field of view in a surveillance camera system. Together, they define the observable scene and determine whether the camera is best suited for wide-area monitoring or focused, long-range observation. For system designers, understanding this relationship is vital in choosing the right lens-camera combination for a given application.

Question 4:

Which device is primarily responsible for managing traffic between two separate local area networks (LANs)?

A. A hub
B. A router
C. A repeater
D. A firewall

Correct Answer: B

Explanation:

When it comes to connecting multiple local area networks (LANs) or enabling communication between different network segments, the most important device is the router. Routers are Layer 3 devices in the OSI model and are designed to route packets based on IP addresses, allowing them to forward data between networks that have distinct network IDs.

Routers play a critical role in both enterprise and home environments. In a home setup, a router typically connects the private home network (LAN) to the internet, allowing multiple devices to share a single public IP address. In a corporate scenario, routers are used to link different departments or office locations, each having its own subnet, by directing packets to the correct destination across the internal or external network.

Here’s why a router is the only correct option:

• It reads the destination IP address in a packet’s header and uses routing tables to determine the most efficient path.

• It supports network address translation (NAT) and Dynamic Host Configuration Protocol (DHCP), which further enhance its capability to manage and isolate networks securely.

• Without a router, devices on different LANs (like in different buildings or VLANs) cannot communicate with each other unless manually bridged.

Let’s consider why the other options are incorrect:

• A. Hub: This is a Layer 1 device that simply broadcasts data it receives to all ports. It does not understand IP addresses or perform routing. It only works within the same LAN.

• C. Repeater: Another Layer 1 device, repeaters only amplify signals to extend the range of a network segment. They cannot distinguish between different networks or route traffic.

• D. Firewall: While a firewall can filter or block traffic between networks for security purposes, it is not responsible for routing. Some firewalls have routing capabilities, but routing is not their primary function.

In summary, the router is essential for inter-network communication. It provides the necessary intelligence to direct traffic across distinct LANs, whether within an organization or between private networks and the public internet. For this reason, the correct answer is B.

Question 5:

Why is routine maintenance considered critical for outdoor cameras that use video analytics to ensure they perform effectively?

A. Irrelevant
B. Optional
C. Automated
D. Essential

Correct Answer: D

Explanation:

Outdoor cameras equipped with video analytics are designed to monitor and analyze environments in real-time for detecting motion, unauthorized access, behavioral patterns, and other security-related events. Since these devices operate in outdoor conditions, they are constantly subjected to environmental challenges. Therefore, maintenance is not an afterthought—it is essential for sustaining performance and accuracy.

Environmental factors such as wind, dust, humidity, rain, insects, and shifting temperatures can affect the hardware and optics of outdoor cameras. Over time, this exposure can lead to dirty lenses, corroded components, or network connectivity issues. These problems directly hinder the performance of analytics, potentially causing false alarms or missed events.

Lens cleanliness is particularly vital. Video analytics systems require high-quality video input to process movements or behaviors accurately. Even slight smudges or grime on the lens can result in distorted images, which may lead to inaccurate detections or misclassifications.

Moreover, software and firmware updates are crucial for patching vulnerabilities, improving algorithmic detection, and enhancing integration with other systems. Without regular updates, the system becomes more vulnerable to security breaches and less effective over time.

Routine maintenance also involves calibrating camera orientation. External influences like wind or accidental physical impact may shift the camera angle slightly. This change can lead to coverage gaps or blind spots. Repositioning and recalibrating ensures that the intended areas are still being monitored correctly.

Additionally, hardware health checks such as verifying power supply, temperature control, and internal storage are needed to prevent system outages. These diagnostics help identify failing components before they cause full system failures.

Why other options are incorrect:

• A (Irrelevant): Maintenance has a direct impact on camera function and analytic reliability, so this option is incorrect.

• B (Optional): Skipping maintenance leads to degraded performance, making it non-optional for any high-reliability system.

• C (Automated): While some updates and diagnostics may be automatic, physical tasks like lens cleaning or repositioning require manual effort.

In summary, to keep video analytics operating reliably in challenging outdoor environments, regular maintenance is indispensable. The correct answer is D.

Question 6:

Which two Axis camera models include built-in infrared (IR) LED lighting to support video capture in dark or low-light conditions? (Choose two)

A. AXIS Q1951-E
B. AXIS M1135-E
C. AXIS Q3615-VE
D. AXIS M3057-PLVE MkII
E. AXIS P1378-LE

Correct Answers: D, E

Explanation:

Infrared (IR) LED illumination is a key feature in surveillance cameras designed for nighttime or low-light surveillance. IR LEDs emit light in a wavelength not visible to the human eye, allowing cameras to capture clear images even in complete darkness without disturbing the environment.

Option D (AXIS M3057-PLVE MkII) is correct. This is a panoramic mini-dome camera that comes with integrated OptimizedIR LED technology. It can monitor wide areas with high detail in low-light scenarios. It’s particularly suitable for areas like entrances, hallways, and building perimeters. The OptimizedIR feature helps by adjusting infrared light automatically to avoid overexposure in the image.

Option E (AXIS P1378-LE) is also correct. This is a high-performance box-style camera with built-in IR LEDs and 4K resolution. The “LE” designation in Axis products typically signals Lightfinder technology and OptimizedIR, both of which are designed for superior image quality in complete darkness. It’s ideal for outdoor or perimeter surveillance where lighting is minimal.

Now, let’s look at the incorrect options:

• A (AXIS Q1951-E): This is a thermal camera, which operates using heat signatures rather than visible light or infrared illumination. These cameras don’t use IR LEDs at all because they don’t rely on reflected light.

• B (AXIS M1135-E): While it’s an outdoor-ready box camera, this model does not include built-in IR. Any IR functionality would need to come from external illuminators.

• C (AXIS Q3615-VE): This camera offers high-resolution imaging and is designed for challenging lighting conditions. However, it does not have built-in IR LEDs, and would need auxiliary lighting or IR accessories for low-light use.

In conclusion, both the AXIS M3057-PLVE MkII and the AXIS P1378-LE are equipped with built-in IR illumination, making them ideal choices for dark environments without needing additional lighting gear. Therefore, the correct answers are D and E.

Question 7:

What is the primary advantage of using Power over Ethernet (PoE) in Axis IP camera installations?

A. It provides higher video resolution.
B. It eliminates the need for a separate video management system.
C. It reduces the need for additional power cabling.
D. It allows analog cameras to operate on IP networks.

Correct Answer: C

Explanation:

Power over Ethernet (PoE) is a critical technology in network-based surveillance systems, particularly in Axis IP camera installations. The main advantage of PoE is that it allows power and data to be delivered over a single Ethernet cable, typically Cat5e or Cat6. This greatly simplifies installation and reduces the infrastructure costs associated with deploying surveillance cameras.

Axis cameras support IEEE 802.3af/at PoE standards, allowing them to receive power through the same cable used for video transmission and communication. This means installers don't need to run separate electrical power lines to each camera location, which is especially beneficial in hard-to-reach or outdoor areas where access to AC power is limited or expensive to deploy.

Option A is incorrect because PoE does not directly impact the video resolution. Resolution depends on the camera’s sensor and configuration, not the power source.

Option B is also incorrect—while Axis cameras can integrate with video management systems (VMS), PoE does not eliminate their need. VMS handles tasks such as video recording, playback, user access, and analytics.

Option D is inaccurate because analog cameras require video encoders or converters to connect to IP networks. PoE applies to IP cameras, not traditional analog cameras.

Another benefit of PoE is the support for centralized power management, often through a PoE switch. In the event of a power outage, a PoE-enabled UPS can keep the surveillance system operational. Axis also offers advanced features such as PoE midspans and splitters for devices that require higher power (e.g., PTZ cameras).

In summary, the correct answer is C, as PoE’s major benefit is simplifying the infrastructure by eliminating the need for separate power wiring, making IP camera deployments more efficient and cost-effective.

Question 8:

Which Axis feature helps optimize bandwidth and storage usage by analyzing motion within the camera’s field of view?

A. Corridor Format
B. Zipstream
C. Lightfinder
D. Wide Dynamic Range (WDR)

Correct Answer: B

Explanation:

Axis Zipstream is a proprietary compression technology designed to optimize bandwidth and storage usage in IP video surveillance systems. Unlike traditional compression methods such as H.264 or H.265, Zipstream is content-aware—it analyzes the scene and dynamically adjusts the bitrate depending on motion and detail levels.

Zipstream ensures that important forensic details (like faces, license plates, and motion) are captured in full quality, while less relevant parts of the image (like static backgrounds) are compressed more aggressively. This results in significant reductions—up to 50% or more—in both storage requirements and bandwidth consumption, without compromising image quality during critical moments.

Option A (Corridor Format) is incorrect because it’s a feature that adjusts the camera’s aspect ratio for vertically oriented scenes (like hallways or staircases), not for compression or bandwidth management.

Option C (Lightfinder) is designed to enhance low-light performance, allowing cameras to deliver color images even in near-darkness. While it's valuable for surveillance, it doesn’t impact data storage or bandwidth usage.

Option D (WDR) helps capture clear images in high-contrast lighting conditions, such as when a subject is backlit. Although it improves visual clarity, it’s unrelated to motion-based compression.

Zipstream complements industry-standard compression formats. When used alongside H.264 or H.265, it retains the benefits of these codecs while adding intelligence that adapts based on scene dynamics. For example, during periods of inactivity, Zipstream can drastically reduce the bitrate, saving valuable network and disk resources.

Axis also offers settings within Zipstream to control how much optimization is applied—this includes modes like “Dynamic,” “Optimized for storage,” or “Optimized for motion.”

In conclusion, Zipstream is a key innovation that makes Axis solutions highly efficient for organizations concerned with reducing operating costs while maintaining high video quality. Therefore, the correct answer is B.

Question 9:

What is the primary advantage of using Variable Bitrate (VBR) over Constant Bitrate (CBR) in a network video surveillance system?

A. VBR ensures the video always uses maximum bandwidth
B. VBR guarantees consistent video quality and optimizes storage
C. VBR limits bandwidth usage during peak activity
D. VBR consumes more storage than CBR

Correct Answer: B

Explanation:

In the context of video surveillance systems like those built with Axis Communications products, the choice between Constant Bitrate (CBR) and Variable Bitrate (VBR) directly impacts both network bandwidth and storage utilization.

VBR (Variable Bitrate) is designed to adjust the bitrate dynamically based on the level of motion or complexity in the scene. When there is little or no movement, the bitrate is reduced, conserving both network resources and storage space. When more motion or complex details are present, the bitrate increases to maintain a consistent video quality.

This is particularly valuable in video surveillance because many cameras are monitoring areas that might be inactive for long periods (e.g., a parking lot at night). Using VBR, the system saves bandwidth and disk space during those idle times while ensuring that motion-heavy scenes are recorded with sufficient detail when needed.

CBR (Constant Bitrate), on the other hand, maintains a fixed data rate regardless of scene activity. While this approach makes it easier to predict and allocate storage and bandwidth, it may result in lower image quality during high-motion scenes or wasted resources during inactivity.

Therefore, Option B is correct because VBR maintains video quality by adapting to scene complexity and optimizes storage usage by lowering bitrate during inactivity.

The other options are incorrect because:

• A suggests VBR always uses max bandwidth, which is false.

• C misrepresents VBR's functionality; it doesn't "limit" bandwidth but adjusts it as needed.

• D is inaccurate because VBR usually saves storage compared to CBR.

Question 10:

Which Axis camera technology helps improve image visibility in scenes with both very bright and very dark areas?

A. Zipstream
B. Lightfinder
C. WDR - Forensic Capture
D. Corridor Format

Correct Answer: C

Explanation:

In video surveillance, one common challenge is capturing usable images in high dynamic range environments, such as a room with bright sunlight pouring through a window and deep shadows in other corners. Without specialized technology, such scenes result in overexposed highlights and underexposed shadows, making it difficult to identify people or objects.

WDR - Forensic Capture (Wide Dynamic Range) is a proprietary Axis technology designed to overcome this issue. It processes multiple exposures of the same frame and merges them to ensure that both the dark and bright areas are visible and detailed. This results in a balanced image where neither highlights nor shadows are lost. WDR is especially useful in entryways, lobbies, or any environment where backlighting is common.

Axis’s WDR - Forensic Capture differs from basic WDR by optimizing for forensic detail, which is essential in security footage. It enhances image usability for identification purposes, making it a critical feature for surveillance applications.

Now let's review the other options:

• A. Zipstream: This is a compression technology that reduces bandwidth and storage requirements without sacrificing important details. It does not affect how the image is captured or deal with lighting challenges.

• B. Lightfinder: This technology improves low-light performance and is ideal for near-dark environments, but it doesn't solve the problem of contrast between bright and dark areas.

• D. Corridor Format: This feature changes the aspect ratio of the image (e.g., to 9:16) for better coverage of vertical scenes like hallways, but it has nothing to do with lighting or exposure balance.

Thus, Option C is the correct answer, as WDR - Forensic Capture directly addresses visibility issues in scenes with extreme lighting contrasts, a common scenario in surveillance.