The advantage of video summary is that it can compress surveillance video, so as to help surveillance personnel quickly obtain valuable information.
- A . TRUE
- B . FALSE
RAID technology combines multiple separate physical hard disks into a logical hard disk in different ways, thereby improving the read and write performance and data security of the hard disk.
- A . TRUE
- B . FALSE
What is the function of the camera’s infrared light?
- A . Equipment is safer
- B . Night image is visible
- C . The video is clearer
- D . The voltage is more stable
What network access method does Huawei video surveillance site support? (Multiple Choice)
- A . Microwave
- B . LTE
- C . GPON
- D . Ethernet
Through the configuration of image parameters, the shooting effect of the camera in different scenarios can be better met. What are the common image parameters of the camera? (Multiple Choice)
- A . Brightness
- B . Chroma
- C . Saturation
- D . Contrast
What functions can be achieved on the camera’s web interface? (Multiple Choice)
- A . Live browsing
- B . Live patrol
- C . Set the preset position
- D . Screen recording
The P2P microwave method is often used for the transmission from the microwave convergence point to the data center, and the P2MP microwave method is often used for the transmission from the monitoring site to the microwave convergence point.
- A . TRUE
- B . FALSE
Which of the following functions is mainly applied to park roads and country roads with low target traffic to check whether there is a retrograde incident?
- A . Intrusion detection
- B . Direction detection
- C . Path detection
- D . Item removal detection
Regarding the scene where the dome camera is mounted on the pole, which of the following descriptions is incorrect?
- A . The cable can be routed through the pole inside the pole, or it can be routed outside the pole
- B . The installation height is generally 1-2 meters
- C . There is usually a network box in the pole-holding scene
- D . The outer wiring needs to be protected by a casing, and the inner wiring needs to be waterproofed at the entrance and exit of the pole
Common video data storage media include: (Multiple choice)
- A . CD
- B . Solid State Drive (SSD)
- C . Disk
- D . Tape
Which of the following options belong to the camera’s wired access method? (Multiple choice)
- A . GPON
- B . LTE
- C . Microwave
- D . Switch
In the four-layer logic architecture of VCN5x0, which layer is responsible for media data processing, media distribution and media storage?
- A . Media layer
- B . Management layer
- C . Control layer
- D . Presentation layer
Video surveillance network solutions are mainly divided into access networks, backbone transmission networks and data center networks.
- A . TRUE
- B . FALSE
Which of the following are common display technologies for video surveillance display equipment? (Multiple choice)
- A . CRT (Cathode Ray Tube)
- B . DLP (Digital Light Processing)
- C . LED (Light Emitting Diode)
- D . LCD (Liquid Crystal Display)
When the video interference is strong or the transmission distance is long, the use of () transmission can ensure the video quality.
- A . Telephone line
- B . Video cable
- C . Optical fiber
- D . Twisted pair
Hard Disk Video Recorder (DVR) is a special video surveillance equipment, its main purpose includes: (Multiple choice)
- A . Screen switching
- B . Video preservation
- C . PTZ control
- D . Screen split
Which of the following options are correct for the description of the Huawei video surveillance site? (Multiple choice)
- A . Integrated lightning protection function
- B . Support IP65 protection level, adapt to the harsh outdoor environment
- C . Easy to install and deploy
- D . Wired and wireless double insurance, high reliability of transmission
In the video surveillance system, the most important indicator to measure the storage hard disk is ().
- A . Access speed
- B . Storage capacity
- C . Frequency
- D . Dimensions
Common intelligent behavior analysis includes: (Multiple choice)
- A . Detection of leftover items
- B . Human feature detection
- C . Population density testing
- D . Perimeter intrusion detection
Which of the following descriptions about ONVIF is incorrect?
- A . It is an international standard in the video surveillance industry, formulated and issued by the International Telecommunication Union ITU
- B . ONVIF has formulated communication specifications for the video surveillance industry and agreed to the communication language. It is the layer products of different manufacturers that can communicate with each other
- C . Full name Open Network Video Interface Forum
- D . The main application areas include the intercommunication of IP cameras, video surveillance platforms, access control systems, etc.
Regarding Profile X, which of the following statements is correct? (Multiple choice)
- A . Profile G refers to the configuration set related to storage, such as how the monitoring platform stores and plays back recordings or videos, etc.
- B . Profile S refers to the configuration set related to the media stream, such as how the camera records, how to transmit, etc.
- C . It is a subset of the ONVIF specification and a collection of interfaces for device docking with specific functions
- D . Profile C is mainly used for communication related to the access control system
Huawei SDC camera has an automatic tracking function, which allows the camera to identify and track the specified target within the shooting field of view.
- A . TRUE
- B . FALSE
The () equipment can protect the camera, achieve waterproof, dustproof and heat preservation.
- A . Infrared light
- B . Radar
- C . PTZ
- D . Guard
The IP address and system time of the Huawei camera will be synchronized from the platform, and there is no need to configure it in the camera.
- A . TRUE
- B . FALSE
The upper-level area views the camera images of the lower-level area. Since the video has been stored in the lower-level area, there is no need to repeat storage in the upper-level area. Which of the following video networking features can be used to achieve?
- A . Front-end multi-machine collaboration
- B . Video forwarding
- C . Cloud Edge Collaboration
- D . NAT
Regarding the wide dynamic and backlight compensation, which of the following statements are correct? (Multiple choice)
- A . Wide dynamic technology is an upgraded version of backlight compensation technology
- B . Wide dynamic is to solve the problem of poor image quality caused by the presence of bright areas and shadow areas in the picture
- C . Backlight compensation and wide dynamic are both technical means to see the target clearly under strong backlight conditions
- D . The working principle of backlight compensation is to take a high-shutter picture now, then take a low-shutter picture, and then merge the two pictures to finally present a clear and complete image
Which of the following equipment converts digital video signals into analog signals for video image display?
- A . Network keyboard
- B . Display
- C . Decoder
- D . DVR/DVS
Regarding the dome camera, which of the following statements is correct?
- A . The monitoring direction of the dome camera is fixed
- B . Dome cameras are mostly used in important places such as dense outdoor crowds or traffic arteries
- C . Dome cameras are mostly non-zoom lenses
- D . Dome camera usually needs additional configuration of PTZ
Cameras with different bandwidth requirements can be flexibly distributed through routers and switches, but GPON cannot.
- A . TRUE
- B . FALSE
When the server fails, which of the following functions can be used to restore the system?
- A . Picture and video backup
- B . Data safe
- C . Digital watermark
- D . Safe Video+
The types of services provided by Huawei Video Cloud mainly include: (Multiple choice) .
- A . Image retrieval service
- B . Image analysis service
- C . Image Management Service
- D . Image acquisition service
The live video is recorded in the web interface of the camera, and the video files can only be saved in the SD card or on the local computer.
- A . TRUE
- B . FALSE
The monitoring platform provides multiple functional items to ensure reliable transmission of messages, which are used to ensure business continuity and availability when the network condition is poor. Which of the following business features is used?
- A . Picture and video backup
- B . Reliable transmission
- C . Encryption technology
- D . Digital watermark
In a project, a Huawei video surveillance site uses a mains + lithium battery module solution to supply power to the camera. How long can the site run after the mains is disconnected?
- A . 15H
- B . 2H
- C . 10H
- D . 5H
Which of the following products are suitable for small surveillance scenarios such as supermarkets, schools, bank offices, and parks? (Multiple Choice)
- A . Cloud IVS 3000
- B . VCN 520
- C . VCN 510
- D . VCN 540
The main applications of artificial intelligence in the field of video surveillance include: (Multiple choice)
- A . Data mining
- B . Data cleaning
- C . Semantic segmentation
- D . Object detection and recognition
Through which of the following functions, users can use different intelligent analysis algorithms according to actual needs, to better adapt to actual application effects and improve the accuracy of intelligent analysis?
- A . User management
- B . Multi-algorithm management
- C . Alarm management
- D . Equipment management
Log in to the camera’s web interface to perform PTZ operation, which is used to adjust the shooting angle and focal length of the lens to realize the function of watching videos in different directions becomes?
- A . Pattern scanning
- B . PTZ control
- C . Preset position
- D . Cruise track
The low illumination characteristic of the camera has the greatest relationship with ().
- A . Focal length
- B . Depth of Field
- C . Resolution
- D . Sensor size (target surface)
The business closure of the intelligent video surveillance system is stronger, and it is not suitable for third-party business integration.
- A . TRUE
- B . FALSE
In order to increase the security of Huawei SDC cameras, which of the following methods are used? (Multiple Choice)
- A . IP address filtering
- B . Cache supplement
- C . Strong password policy
- D . Digital watermark
Which of the following options is not unique to SDC?
- A . Anti-electromagnetic interference
- B . Algorithms are defined on demand
- C . Continuous evolution
- D . Equipment collaborative intelligence
The switch is suitable for the scene where the video surveillance sites are more concentrated, and the router is more suitable for the scene where the video surveillance sites along the road are more scattered.
- A . TRUE
- B . FALSE
In order to increase the reliability of Huawei SDC cameras, which of the following methods are used? (Multiple choice)
- A . Media stream super error correction
- B . Digital watermark
- C . Cache supplement
- D . Strong password policy
The openness of the intelligent video surveillance platform includes (). (Multiple choice)
- A . Data sharing, platform intensive
- B . Fast business launch, agile integration, convenient operation and maintenance
- C . The code is open source and can be used for secondary development
- D . Software and hardware decoupling, application and algorithm decoupling
The development trend of intelligent video surveillance platforms is cloudification, intelligence and openness.
- A . TRUE
- B . FALSE
Huawei SDC cameras have multiple security protections. Which of the following is not a data protection method?
- A . Digital watermark
- B . Cache supplement
- C . IP address filtering
- D . AES stream encryption
() refers to data that is inconvenient to use the two-dimensional logical table of the database to represent, including office documents in all formats, text, pictures, XML, HTML reports, images, audio and video information, etc.
- A . File data
- B . Structured data
- C . Block data
- D . Unstructured data
Which of the following are typical application scenarios of face recognition cameras? (Multiple Choice)
- A . Hall entrance
- B . Subway entrance and exit
- C . Security gate
- D . Highway
The front-end multi-camera collaboration feature can improve the accuracy of blacklist hits and reduce the false negative rate of camera face recognition.
- A . TRUE
- B . FALSE
The larger the focal length of the camera, the larger the angle of view.
- A . TRUE
- B . FALSE
What are the advantages of data center network virtualization in the video surveillance system? (Multiple Choice)
- A . Simple network expansion
- B . Network resources are easy to manage
- C . Improve network utilization
- D . Reduce operation and maintenance costs
What are the three stages of the development of video surveillance cameras so far? (Multiple Choice)
- A . Modular/digital era
- B . Convergence era
- C . Internet age
- D . Intelligent era
Which of the following functions can be applied to the entrances and exits of shopping malls, supermarkets, chain stores, associations, and museums to count the number of people entering and exiting to assist users in analyzing laws and trends?
- A . People counting
- B . Item removal detection
- C . Intrusion detection
- D . Detection of leftover items
() is an area set up by some related alarm sources and alarm output devices, which can be deployed and disarmed in a unified manner, and a unified linkage strategy can be formulated.
- A . Electronic map
- B . TV wall
- C . Cruise
- D . Defense zone
Huawei SDC camera can automatically adjust backlight, low illumination, wide dynamic and other functions in different time periods.
- A . TRUE
- B . FALSE
Which methods can be selected for the power supply of Huawei video surveillance sites?
- A . Wind energy + lithium battery
- B . Mains + lithium battery
- C . Solar + Lithium battery
- D . Mains
Which camera in the following options can load different software and algorithms for the camera according to different scenes to improve the efficiency of intelligent analysis.
- A . Analog camera
- B . SDC
- C . IPC
- D . HD Camera
Regarding RAID 3, which of the following descriptions is correct?
- A . Data mirroring, no verification
- B . Data striping, no verification
- C . Data striped read and write, check information is stored in a dedicated hard disk
- D . Data striping, distributed storage of verification information
Which of the following functions can be realized in a mixed scene of people and vehicles while realizing the recognition of motor vehicles, non-motor vehicles and human bodies at the same time?
- A . Intelligent face analysis
- B . Video summary
- C . Structured people and vehicles
- D . Video search
If the captured face has motion blur, you can try to reduce the camera’s shutter value.
- A . TRUE
- B . FALSE
Cloud IVS 3000 image analysis server includes? (Multiple choice)
- A . License plate analysis
- B . Face analysis
- C . Behavior analysis
- D . Video retrieval
What kind of docking protocol does the multi-level mutual assistance function of Huawei SDC cameras support?
- A . SDK
- B . T28181
- C . SIP
- D . ONVIF
The data center is the data convergence center of the video surveillance system, providing video image data for each surveillance workstation and surveillance center.
- A . TRUE
- B . FALSE
The analog camera has a compression coding module to facilitate network transmission of video data.
- A . TRUE
- B . FALSE
The characteristics of video surveillance storage mainly include? (Multiple choice)
- A . Write less and read more
- B . High reliability
- C . High scalability
- D . Massive data
When using the camera’s web interface to view the live video, the local zoom function is used, and the camera will automatically adjust the focus during the zooming process.
- A . TRUE
- B . FALSE
The image retrieval service of Cloud IVS 3000 includes ()?
- A . License plate analysis
- B . Face retrieval
- C . Vehicle deployment control
- D . Face analysis
The main function of DVS is to encode analog signals and convert them into network signals for transmission.
- A . TRUE
- B . FALSE
Which of the following functions can help managers assign users and permissions based on the situation of the department, which not only improves management efficiency, but also reduces management pressure?
- A . Equipment management
- B . Multi-algorithm management
- C . Alarm management
- D . User Management
Which of the following devices can analog cameras connect to the networked video surveillance platform?
- A . Decoder
- B . DVR/DVS
- C . Display
- D . Network keyboard
The low illumination characteristic of the camera has the greatest relationship with ().
- A . Focal length
- B . Resolution
- C . Depth of Field
- D . Sensor size (target surface)
Which of following description of intelligent video quality diagnosis is correct? (Multiple choice)
- A . When the surveillance camera is blocked by foreign objects, the platform will automatically send out an alarm
- B . When the video transmitted by the surveillance camera back to the platform suffers serious picture jitter, the platform will automatically issue an alarm
- C . When the surveillance camera image is lost, the platform will automatically issue an alarm
- D . When the brightness of the video transmitted by the surveillance camera back to the platform is too low and the picture cannot be seen clearly, the platform will automatically issue an alarm
Which can effectively compensate the shortcomings of the camera in the dark environment when shooting the main body of the picture?
- A . White balance
- B . Backlight compensation
- C . Strong light suppression
- D . Image jitter
The same resolution, using the H.264 protocol, has a lower bit rate than H.265 protocol encoding.
- A . TRUE
- B . FALSE
The resolution of the 4K camera is 4 million pixels.
- A . TRUE
- B . FALSE
The smaller the lens aperture of the camera, the shallower the depth of field.
- A . TRUE
- B . FALSE
Regarding NAS (Network Attached Storage), which of the following statements is wrong?
- A . Transmission via IP network
- B . Suitable for large-scale block-level storage
- C . Easy to expand, simple and convenient to install
- D . Support a wide range of operating systems
Common storage types include block storage, file storage and object storage.
- A . TRUE
- B . FALSE
What operations can the network keyboard generally achieve? (Multiple choice)
- A . Video encoding
- B . PTZ control
- C . Snap a photo
- D . Live on the wall