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| Section | Weight | Objectives |
|---|---|---|
| Huawei Camera Introduction and Application | 24% | - Camera classification, parameters and selection - Camera installation, configuration and commissioning - Camera maintenance and troubleshooting |
| Video Network and Security Principles and Applications | 7% | - Network protocols and transmission requirements - Video data security and privacy protection - IP network basics for video surveillance |
| Huawei Intelligent Vision Platform Technologies and Application | 24% | - IVS platform architecture and components - Platform deployment, configuration and management - Platform integration and system maintenance - Video storage, retrieval and playback |
| Basic Knowledge about Video Security Technologies | 45% | - Image and video processing fundamentals - Video coding and transmission technologies - Intelligent analysis and AI applications - Video security overview and development trends |
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NEW QUESTION # 24
Huawei HoloSens Intelligent Vision System (IVS) uses SafeVideo+ technology to effectively enhance storage reliability. Which of the following capabilities does SafeVideo+ support?
Select All that Apply
Answer: A,B,C,D
Explanation:
Huawei SafeVideo+ is a storage-reliability technology designed to improve the availability, efficiency, and resilience of surveillance-video storage. All four options correspond to capabilities presented in Huawei's official SafeVideo+ architecture.
Option A - Block storage: SafeVideo+ employs block-based storage mechanisms to improve the management and processing of recorded data. This supports efficient storage operations within the video- security environment.
Option B - Bad sector repair: The technology supports bad-sector management and replacement to reduce the risk of data loss caused by defective disk areas.
Option C - Readable and writable upon RAID failure: Huawei identifies continued read/write capability under supported RAID-failure conditions as a reliability benefit. This means the storage system can maintain service during certain degraded states, not that every possible multi-disk failure can be tolerated.
Option D - Efficient data read/write: SafeVideo+ improves storage efficiency through optimized read/write processing, reducing unnecessary disk operations and improving the performance of sustained video-storage workloads.
Huawei also describes improved disk utilization, extended disk service life, and reduced annual failure rates as expected benefits.
These capabilities are particularly important in surveillance environments that continuously generate large volumes of video data and require uninterrupted recording and retrieval.
Official Huawei references:
Training Material - Reliability and Security Features: SafeVideo+ and Data Safe, PDF page 401 (printed slide 80).
NEW QUESTION # 25
When an abnormality occurs in an observation area, which feature can be used to show images on a large screen for unified command and coordination?
Answer: A
NEW QUESTION # 26
A longer camera focal length means a narrower field of view.
Answer: A
Explanation:
The focal length of a camera lens determines the angular extent of the scene captured by the image sensor. For a fixed sensor size, increasing focal length produces a narrower field of view and magnifies objects within the observed area.
A short focal length provides a wide viewing angle, making it suitable for monitoring large areas such as building entrances, public spaces, and indoor halls. By comparison, a longer focal length concentrates the image on a smaller area and allows distant objects to occupy more pixels within the captured frame.
This principle can be expressed through the horizontal field-of-view relationship: # = 2 tan#¹(W / 2f), where # represents the horizontal viewing angle, W is the sensor width, and f is the lens focal length.
As focal length increases while sensor width remains constant, the calculated viewing angle decreases.
In video-security design, this relationship is essential when selecting lenses for vehicle monitoring, perimeter protection, identification checkpoints, and long-distance observation.
Huawei distinguishes wide-angle, standard, and telephoto lenses according to focal length and field of view.
The training material explicitly describes the inverse relationship between focal length and the horizontal area visible through the camera.
Official Huawei references:
Training Material - Optical Module - Lens, slide 16; Main Lens Parameters, slide 17; Focal Length, slide
18; Angle of View, slide 19.
NEW QUESTION # 27
When an abnormality occurs in an observation area, which feature can be used to show images on a large screen for unified command and coordination?
Answer: A
Explanation:
A video wall provides centralized, large-format visualization of surveillance information and is intended for monitoring centers, security operations rooms, and coordinated incident-response environments.
Option B is correct because a video wall can display live video, recorded footage, and relevant surveillance information across multiple screens. This gives operators and command personnel a consolidated view of events occurring in different observation areas.
When an abnormality is detected, the associated camera stream can be displayed on the video wall for immediate assessment. Operators can then coordinate responses using the presented visual information.
Option A - Snapshot taking: Captures individual still images. Although snapshots can support investigations, this is not the feature specifically responsible for coordinated large-screen monitoring.
Option C - Video recording: Preserves surveillance footage for later playback or investigation but does not itself provide the large-screen visualization function.
Option D - Video storage: Maintains recorded video data and supports retrieval. Storage is a backend function rather than the command-center display capability described.
Huawei's training material explains that video walls improve observation convenience and allow personnel to recognize exceptional events promptly.
The Lab Guide also describes alarm-related video-wall operations, linking large-screen presentation with incident handling.
Official Huawei references:
Training Material - Video Service Features: Video Wall and Network Keyboard, PDF page 378 (printed slide 57). Lab Guide - Section 8.2.1, Alarm Management, Table 8-1.
NEW QUESTION # 28
A GPON access solution is suitable for areas with many centrally located sites, such as buildings and downtown areas.
Answer: A
Explanation:
Gigabit-capable Passive Optical Network (GPON) is an optical access technology that uses a point-to- multipoint architecture to connect multiple endpoints to a centralized optical network infrastructure.
Huawei's video-network curriculum identifies GPON as particularly suitable for areas with a large number of video sites deployed within relatively concentrated geographic locations, including buildings and urban areas.
In a GPON architecture, an Optical Line Terminal (OLT) connects to multiple Optical Network Units or Terminals (ONUs/ONTs) through an Optical Distribution Network (ODN). Passive optical splitters distribute optical connectivity without requiring electrically powered switching equipment at each splitter location.
This design reduces the amount of dedicated fiber required compared with point-to-point connections to every endpoint.
For video-surveillance deployments, GPON offers centralized access management, relatively low optical-fiber deployment costs, and substantial bandwidth capacity.
Huawei's course describes typical GPON transmission rates of approximately 2.488 Gbit/s downstream and
1.244 Gbit/s upstream for the GPON technology discussed in the V1.0 material.
The actual number of camera streams supported depends on the optical split ratio, video bit rates, network overhead, and available upstream capacity.
Because centralized, relatively dense surveillance deployments match the application scenario expressly described by Huawei, the statement is true.
Official Huawei references:
Training Material - Front-End Access Network, slide 156; Access Network: GPON, slide 158.
NEW QUESTION # 29
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