basic purpose and name the OSI layer where the following devices will be operating:

(1) repeater  Repeaters: repeters also called regenerator, are physical hardware device. They connet two network segments and broadcast packets between them they have the primary function to regenerate the electrical signal: ·         Reshaping the wavefrom ·         Amplifying the waveform ·         Read More …

Explain the various computer security classification recognised by trusted computer system Evaluation criteria (TCSEC)

Trusted computer system evaluation criteria is a united states government Department of Defense standard that sets basic requirement for assessing the effectiveness of computer security controls built into a computer system. The TCSEC was used to evalute, classify and select Read More …