Internet Working Security Answer 2022

Running Head: Internetworking 0
Internet
working
Task
Student name

Network Security 1
Table of Contents
Answer 1.................................................................................................................... 1
1.1........................................................................................................................... 1
1.2........................................................................................................................... 1
1.3........................................................................................................................... 1
1.4........................................................................................................................... 1
Answer 2.................................................................................................................... 1
2.1........................................................................................................................... 1
2.2........................................................................................................................... 2
2.3........................................................................................................................... 2
Answer -3................................................................................................................... 2
3.1........................................................................................................................... 2
3.2........................................................................................................................... 2
Answer-4.................................................................................................................... 3
4.1........................................................................................................................... 3
4.2........................................................................................................................... 3
4.3........................................................................................................................... 3
References................................................................................................................. 4

Network Security 2
Answer 1
1.1
Rate of data transfer in a second is known as bit rate. It is based on the
medium as well. It is used for the channel capacity, such as bps, Mbps, and
others.
1.2
We can calculate the bit rate using this formula, which is:
signal per level * bandwidth = bit rate
So, according to provides data,
Bitrate = 8*3 = 24
1.3
We can calculate the channel
C = B log2(1+SNR)
SNRdB = 6 dB
Therefore,
SNR= 10 log10(S/R)  SNR = 4
C = 3*106 x 1og2(1+4) ≈ 8 Mbps.
C= 2 Mbps
1.4
A channel is used for transfer the data using a medium. We can provide
actual transfer rate of that medium using data rate. It is a speed of data
transfer in a medium between two workstations (Tanenbaum).
Answer 2.
2.1
Multiplexing: it is a way to combine analog or digital signal into one signal
and transfer it over a shared medium. It is necessary to secure the signal
with a high level of frequency and it is also secure the signal from distortion,
attenuation, and noise