3. Pretend you are planning a trip to three foreign countries in the next month. Consult your wireless carrier to determine if your mobile phone would work properly in those countries. What would the costs be? What alternatives do you have if it would not work? Labs 1. Check the speed of your Internet connection by going to the following web site: speedtest.net. What is your download and upload speed? 2. What is the IP address of your computer? How did you find it? Hint for Windows: Go to the start icon and click Run. Then open the Command Line Interface by typing: cmd Then type: ipconfig. What is your IPv4 address? What is your IPv6 address? 3. When you enter an address in your web browser, a Domain Name Server (DNS) is used to lookup the IP address of the site you are seeking. To locate the DNS server your computer is using, type: nslookup. Write down the name and address of your DNS server. Use the nslookup command to find the address for a favorite web site. For example, to find the IP address of ESPN type: nslookup espn. Write down your website’s name and address. Note: it is on the line following the name of the web site you entered. 4. You can use the tracert (trace route) command to display the path from your computer to the web site’s IP address you used in the previous lab. For example, tracert 199.181.132.250. Be patient as tracert contacts each router in the path to your website’s server. A “Request timed out” message indicates the tracing is taking too long, probably due to a lack of bandwidth. You can stop the trace by pressing Ctrl + C Information Systems for Business and Beyond (2019) pg. 111
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