DEFINITION 1: The focal point of a concave lens is the point where light rays parallel to the axis seem to diverge from after passing through the lens. The distance from the lens to this point is called the focal length of the lens.
Sniffers. Tweet. Submit article. A sniffer, also known as a network analyzer, packet sniffer or ethernet sniffer, is a computer program that monitors and analyzes network traffic transmitted from one network location to another. A sniffer captures each packet sent, decodes it and allows to view its content.niffers. Tweet. Submit article. A sniffer, also known as a network analyzer, packet sniffer or ethernet sniffer, is a computer program that monitors and analyzes network traffic transmitted from one network location to another. A sniffer captures each packet sent, decodes it and allows to view its content.
1 Packet analyzer (aka network analyzer, protocol analyzer or sniffer), computer software or hardware that can intercept and log traffic passing over a digital network. 2  Allan Clarke (footballer born 1946) , the Leeds Utd, Fulham and England striker known by that nickname.niffer may refer to: 1  Packet analyzer (aka network analyzer, protocol analyzer or sniffer), computer software or hardware that can intercept and log traffic passing over a digital network.