Network Exercise (computer science)

Names(Work in Pairs) ______________________________________________________________

CS 1150 In-Class Network Exercise, note that the answers will vary depending on your environment.

Use command line, desktop network information icons , your slides and any other resources to answer the following questions.

1. What is the IP address on your laptop(node)? How many bits are required to represent it? What is the purpose of the IP address? ( may use ipconfig /all from the command prompt)

2. a. What number system is used to represent the physical address(also known as the MAC address) of your Network Card?

b. What is the gateway address(router) ?

c. What is the purpose of the gateway?

3. What is the hostname of your PC and why is it assigned to your PC?

4. Use the command: nslookup your_hostname. What does it list?

Now lookup 130.108.128.55 What is the fully qualified domain name (FQDN) of the machine?

5. Use the command: tracert www.time.gov How many hops(lines in the output) does it take to complete?

6. ping valhalla.cs.wright.edu Did it respond? What is the purpose of ping?

7. tracert a web site of your choice. (example: www.google.com) (It will be hosted on a server so will list an IP address). List the web site. At what hop does it leave WSU? (Remember WSU’s IP for the router is 130.108.1.1) How far away is it (total hops)?

tracert baidu.com

How far away is this machine?

8. If you were trying to diagnose a connectivity problem in a network, what command(s) would you use and why?

9. What is the cable type used in this lab? __________________________

10. What is the network technology used in this lab? _____________________

11. What do you assume is the topology?________________________

Get to the above similar screen on your laptop.

12. What is the name of the adapter and the bandwidth? What does the bandwidth measure?

13. Why are 2 protocols installed?

14. What is the subnet mask?

15. Go to: http://www.internetsociety.org/map/global-internet-report/

a. What is the Internet user penetration for your native country?

b. What is the median mobile download speed for your native country? Is this considered fast?

c. How affordable is broadband in your country? (% of users with broadband access)

d. Make a generalized statement about resilience scores AND limits on content? (think about this)

16. Network traffic is ____ above/below normal today. Where is it most congested? (use http:// www.akamai.com/html/technology/dataviz1.html

17. In what continent are cyber-attacks most prevalent today?

18. List 2 challenges faced by network administrators.