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HCSA_Exam_V8___Print

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HCSA TEST (A) Company: ________________Name: ______________ Mark: ____________ Notice: You are supposed to finish this test in 1 hour. No discussion should be permitted during the process. Thank ... s for your cooperation! 1. True or False (34*1) 1. H.265/High Efficiency Video Coding (HEVC) is the successor codec to H.264. The primary goal of the new codec is around 50 percent better compression efficiency than H.264. ( True ) 2. By adopting Predictive Encoding, Noise Suppression and Long-term Bitrate Control, Hikvision H.265+ can save the bandwidth greatly in certain scenarios. 3. When the sensor size is fixed, longer focal length will make large FOV. When the focal length is fixed, larger sensor size will make large FOV 4. Flow analysis camera can count how many people in a certain region, and their waiting time. 5. Compared to 1080P, 1080P lite can get almost the same quality with lower bitrate. 6. For Hikvision people counting application, users can get the people flow statistics from web client, iVMS-4200/HikCentral and NVR. 7. For Hikvision people counting application, users can save the people flow statistics even there is no SD card in the camera. 2. Single Choice (33*2) 1. Which of the following factors will affect the storage space? ( E ) A. FPS B. Resolution C. Number of cameras D. Video compression type E. All of the above 2. Which of the following descriptions about bit rate is wrong?A. There are two types of bit rate: constant bit rate and variable bit rate. B. Under variable bit rate, the image quality is always good, whereas the bit rate is variable. It is suitable for dynamic scenes. By using VBR, we can estimate the bandwidth/storage consumption. C. the bit rate is supposed to be constant but as a result, the image quality is variable when [Show More]

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