Explain how ethernet deals with collisions, Computer Network Security

(a) Describe how CSMA/CD operates and explain how Ethernet deals with collisions.

(b) Describe how the subsequent protocols work:

i. ARP
ii. DHCP
iii. DNS
iv. SMTP

i. Outline popular flavours of this wireless standard. Illustrate on the operating frequency, range and speed of each flavour.

ii. What are the modes of operation of this standard and describe the difference between them.

iii. Mention one security issue with this wireless technology and illustrate how this issue can be addressed.

(d) Given the provided received codeword C and the generator polynomial G.

Evaluate if an error has taken place during transmission.

C: 110110011

G: x³ + x

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