Even and Odd Parity ?!

 

 Parity System:

      - Simplest method for error detection

      - One parity  bit attached to the information

      - Even Parity  and Odd Parity

         Even Parity

            - One bit is attached to the information so that

               the total number of 1 bits is an even number

                      1011001 0

                      1010010 1

         Odd Parity

            - One bit is attached to the information so that

               the total number of 1 bits is an odd number

                      1011001 1

                      1010010 0

 What tool have you used to create and analyze packet captures?

Network Monitor in Win2K / Win2K3, Ethereal in Linux, OptiView Series II (by Fluke Networks).

Define Shanon Capacity?

It is the theoretical highest data rate foe a noise channel.

Capacity= Bandwidth * log2 (1+SNR)

What is Nyquist bit rate formula?

For a noiseless channel, the Nyquist bit rate formula defines the theoretical maximum bit rate.Bitrate=2* Bandwidth*log2L

What is SNR?

SNR is the signal to noise ratio, it is the statistical ratio of the power of the signal to the power of the noise.

What is Kirchhoff’s Principle?

All algorithms must be public; only the keys are secret.

What is monoalphabetic Substitution?

The general system of symbol for symbol substitution is called Monoalphabetic Substitution.

What are Qubits?

 Bits sent one photon at a time are called Qubits

What are S Boxes?

The substitution in Symmetric key algorithms is performed by S-Boxes.

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