Homework #$1$ in CS $331$: Computer Networks

Instructor: Dr$.$ Yi Yang

Due: Online submission by $11$:$59$pm on Friday Jan $26$th$,2024$ in D$2$L

Please pay attention to the late submission policy in our course syllabus.

Total: $100$ Points.

After you read and study for our Chapter $1$ in the textbook, please complete the following two homework questions.

$1.$ Hands$-$on exercises to practice common networking commands and tools. For each exercise, please tell me the command$($s$)$ for the task, and the screenshot of the output$($s$)$ from your command$($s$).$

a$.$ What OS is your computer? Which company developed it$?$ Which version of the OS do you have there? $(10$ points$)$

b$.$ Which command line tool is your computer using? Open it$.(10$ points$)$

c$.$ How to find your computer$$s IPv$4$ address? What is it$?(10$ points$)$

d$.$ What is www$.$google.com$$s IPv$4$ address? $(10$ points$)$

c$.$ Is your computer connected to the Google server through the Internet or not? $(10$ points$)$

d$.$ What is NEIU$$s gateway router$$s IPv$4$ address? How to find it$?(10$ points$)$

e$.$ How many routers between your computer and the Google server? How to find it$?(10$ points$)$

$2.$ Draw the network topology $($i$.$e$.,$ major networking devices and their connections with each other$)$ of your home network. Please do not give me a floor plan for your house. Some hints to think about: $(30$ points$)$

$$ How many major networking devices in your house?

$$ How do they connect with each other and how do they connect with the Internet?

$$ Wireless vs$.$ Wired $($with cables?$)$

The recommended online drawing software for this assignment is draw.io $($it is free$).$ However, the accepted images formats are either $.$pdf or $.$jpg or $.$png$.$ Note that the instructor cannot open $*.$drawio files in her computer. Thanks!