The main purpose of the remote focus function is to

Answer(s): D

Adding network surveillance cameras to an existing Ethernet network

Is not recommended, since bandwidth demands from the surveillance video would likely congest the network.
Will benefit from using VLANs, to keep the surveillance video separate from other network traffic, reducing the risk for network congestion.
Will cause unacceptable video latency, due to the amount of UDP traffic taking precedence on the network.
Will benefit from establishing VPN connections to the cameras, reducing the risk of malicious users eavesdropping on the video.

Answer(s): B

This image represents an enlargement of an actual surveillance image. How could you improve the overall quality of the image? (Choose two)

Answer(s): A,E

Which of the following general statements about illumination needs of PTZ cameras is true?

PTZ should not be used with IR light
The f-stop value of a lens will get higher if you zoom in
PTZ cameras in general tend to have lower f-stop value compared to fixed cameras
PTZ cameras should not be used with mixed IR and white light

Answer(s): B

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