Dahua Technology India Pvt.Ltd. Interview Questions, Process, and Tips

Q1. What is WDR ?
Ans. 
WDR stands for Wide Dynamic Range. It is a feature in cameras that allows them to capture clear images in both bright and dark areas.
• WDR helps to balance the exposure in different parts of the image

• It is useful in scenarios where there are both bright and dark areas in the same frame

• WDR technology combines multiple images taken at different exposures to create a single well-exposed image
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Q2. What is BLC and HLC
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BLC stands for Basic Life Cycle and HLC stands for High Level Cycle.
• BLC refers to the basic stages of a product or system's life cycle, including development, testing, and deployment.

• HLC refers to the higher-level phases of a product or system's life cycle, such as maintenance, updates, and retirement.

• Understanding both BLC and HLC is important for ensuring the successful management of a product or system.
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Q1. What is the Bitrate
Ans. 
Bitrate is the number of bits processed or transmitted per unit of time.
• Bitrate is commonly used in digital multimedia and telecommunications to measure data transfer rates.

• It is typically measured in bits per second (bps) or kilobits per second (kbps).

• Higher bitrate generally means better quality but also requires more bandwidth.

• For example, a video with a bitrate of 10 Mbps will have higher quality than the same vide
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Q2. What is resolution of 2 MP
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2 MP resolution refers to a camera or display with 2 million pixels.
• 2 MP stands for 2 megapixels

• It means the camera or display has a resolution of 1600 x 1200 pixels

• Higher resolution results in clearer and more detailed images
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Q1. All question all related to IP and AHD Cameras
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Q2. Some questions about biometric and access control
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Q3. Difference between Dvr and Nvr
Ans. 
DVR records analog camera footage, while NVR records IP camera footage.
• DVR stands for Digital Video Recorder and records footage from analog cameras.

• NVR stands for Network Video Recorder and records footage from IP cameras.

• DVR uses coaxial cables to connect to cameras, while NVR uses Ethernet cables.

• NVR systems are more flexible and scalable compared to DVR systems.

• NVR systems can also support advanced features like mo...read more
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Q4. Which cable use for AHD Cameras and which cable Use for IP Cameras
Ans. 
Coaxial cable is used for AHD cameras and Ethernet cable is used for IP cameras.
• Coaxial cable is commonly used for AHD cameras because it can transmit high-definition video signals over long distances without loss of quality.

• Ethernet cable, such as Cat5e or Cat6, is typically used for IP cameras as it allows for power and data transmission over a single cable.

• AHD cameras require BNC connectors for coaxial cable, while ...read more
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It was vary good experience

Q1. About my work experience, technical experience, work thought process etc.
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Q1. About personal profile, work experience, expectations,
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Logical Reasoning, Arithmetic

Q1. Difference Hub Router Switch
Ans. 
A hub is a simple networking device that connects multiple devices in a network. A router is a networking device that forwards data packets between computer networks. A switch is a networking device that connects devices within a network.
• Hub operates at physical layer, router operates at network layer, switch operates at data link layer

• Hub broadcasts data to all devices in the network, router forwards data between diff...read more
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Q1. Introduce Yourself
Ans. 
I am a recent graduate with a degree in Computer Science and a passion for technology. I have experience with programming languages such as Java, Python, and SQL.
• Recent graduate with a degree in Computer Science

• Passionate about technology

• Proficient in Java, Python, and SQL
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