For the two-way single-lane scene where vehicles pass, which of the following camera selection methods is most suitable for?

• A.4-cylinder machine 2 ball machine
• B.2-cylinder machine 1 ball machine
• C.4-cylinder machine
• D.3-cylinder machine 2 ball machine

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Regarding the Huawei HoloSens IVS1800 interface, which of the following descriptions is correct? (Multiple choice)

• A.IVS1800 alarm interface is used to connect external alarm input equipment and external alarm output equipment
• B.The USB interface of IVS1800 can be used to connect a U disk, connect a USB mouse, and connect a mobile hard disk
• C.The HDMI interface of IVS1800 is used for HDMI video output, and does not support dual HDMI heterogeneous output
• D.IVS1800 serial port is used for equipment maintenance access

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Manually rotate the aperture knob on the lens to adjust the aperture size.

• A.False
• B.True

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Which of the following product forms of IVS3800 need to build RAID5 and RAID1 when configuring data disk RAID?

• A.IVS3800R V2
• B.IVS3800S V2
• C.IVS3800F V2
• D.IVS3800C V2

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If a suspected vehicle needs to be intercepted and checked on a certain road section, control measures can be implemented on the vehicle on the video service platform.

• A.True
• B.False

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