In a network surveillance installation, the purpose of a router is to

• A.Forward the video stream to the correct receiver within a network.
• B.Separate the video stream from the camera control signaling.
• C.Separate audio and video traffic to reduce audio latency.
• D.Forward the video stream between networks.

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Ghost image is when

• A.The lens is using too high f-stop value.
• B.The shutter time is too long.
• C.The gain is too high.
• D.The frame rate is too low.

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A camera lens with a low f-stop value of 1.2 will outperform a lens with a higher f-stop value due to which one of the parameters below?

• A.Less image artifacts
• B.Improved sharpness
• C.Better depth of field
• D.Better low light capability

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The term f-stop, or f-number,

• A.Relates the focal length of the lens to the zoom factor.
• B.Is the end position of the focus motor in an autofocus system.
• C.Measures the lens' capability to focus on objects at short distance.
• D.Measures the lens' capability to collect light.

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DRAG DROP
Match the protocol to its default port number. Drag each gray box from the left column to the matching blue box in the right column.

Correct Answer:

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