INLS161-001 | Spring 2018

Class Session: Wednesday Jan 24, 2018

Basics: Networks

We are doing this class Monday, January 29, in place of the lab. Here is a link to the class exercise we will do today.

Don't forget about making blog posts or other parts of your Value Added grade component.

Preparations for this Networking Session

These Khan Academy videos serve as a great introduction to our Networking session. I want you to actively watch these videos before coming to class so read over the associate keywords I have listed on this page under each video link. Most of these keywords are at least briefly mentioned in the video.

This class will be collaborative in nature and you will have the opportunity to get to know your classmates better, so this class will affect your value added grade more significantly than any other class this semester. If you are 🤧contagious🤒, though, don't bring your germs to class; I will find a way for you to make up the class 👍 .

If I have found any other relevant links or videos associated with the term, that term will have an link to the source. if you see this arrow , then I have provided a related link that was not mentioned in the videos.

1. Wires Cables and Wifi (less than 7 minutes)

measuring data: binary, bit, byte, kilobyte, megabyte, gigabyte, terrabyte

data throughput and speed: bandwidth, bitrate, latency, requesting device

modes of transmitting data: copper wire, electricity, light, fiber optic cable, thread of glass, bounce angle, radio signal, wireless, signal degradation, wifi, satellite

2. IP addresses and DNS (less than 7 minutes)

Vint Cerf, Bob Kahn, internet, internet protocol (IP), network, ISP, IP address(es), IP hierarchy

⇒ Pinging a a domain to find the IP address:

computername:~ username$ ping

⇒ Result:

PING ( 56 data bytes

early numbers are usually country numbers and regional numbers then subnetworks the the address of the device

IP4,IPv6, DNS, DNS server, zones, domain, top level domain (official list)

DNS Propagation Checker

3. Packets Routers and reliability (less than 7 minutes)

IP packets, routes, cheapest path, TCP, TCP/IP  ⇒TCP Joke

TCP inventory, acknowledgment, verification, sign, scaleable

4. HTTP and HTML (just at 7 minutes)

URL, server, HTTP, GET Request, HTML


5. Encryption and Public Keys (less than 7 minutes)

encryption, Caesar's Cipher, algorithm, key, 256 bit keys ⇒ random key generator, symmetric encryption, asymmetric key, private key, public key

6. Cybersecurity and Crime (just at 5 minutes)

Cybersecurity viruses, DDOS attacks, phishing, hacker, botnet

social engineering hacking

top/reload prep panel

We will spend more time working with git and Unix in this class session.


Lawrence Jones

Office hours by appointment.