Homework – Network Security – CIS 377

1. ‘Network security’ often used interchangeably
   with ‘cybersecurity’? Why? Do you agree? Why or why not – write 500 words.

• List and describe each of the layers of the TCP/IP
  Model. Also list each layer in the table below.
• List and describe each of the layers of the OSI
  Model.
• What is the difference between TCP/IP and OSI
  models?

For each of the terms below –
describe it and write it at the correct place on the table (see examples below). User your book and/or web for
resources.

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• Ethernet Cable – The
  physical cable used in to connect to devices in wired networks. Layer 1.
• Optical fiber
• WIFI
• Radio waves
• Packet
• MAC
• ARP
• IP
  address
• IP
  spoofing
• ARP
  Cache poisoning
• Router
• UDP
• SYN
  flood
• Port
  scanning
• Port
• NMAP
• Ping
• Ping
  of Death
• Firewall
  – An application used to filter traffic in a network.
  Can span layers (layers 3, 4, 5).
• Session
  hijacking
• SSL
• TLS
• SSH
• HTTP
• HTTPS
• Digital
  key
• FTP
• IDS
• IPS
• Trojan
  horse
• Physical
  security
• Eavesdropping
• Switch
• Flooding
  attacks
• ARP
  spoofing
• WPA2
• VLAN
• Encryption
• IPv4
• IPv6
• IPSec
• VPN
• Access
  control list
• Segments
• DNS
• DNS
  Spoofing
• DoS
• ICMP
• Malware
• DDoS
• Zombie
• Botnet
• Onion
  routing

• Wireless
  networks function on many of the same principles discussed in class. Study https://www.consumer.ftc.gov/articles/0013-securing-your-wireless-network
  and go through the steps to ensure that your home or a friends wireless
  network is secure. Provide here a log of the steps you took and explain why you
  took them.  

• Create
  a brief ‘tip sheet’ to give to your friends and family on being secure on
  public WiFi networks (like on an airport). Along with tips, give a small
  explanation on the consequences of not taking security precautions on public
  networks.

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