SI110 Homework Alpha: ________ Name: ____________________
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Collaboration Policy: Default
MIDN Last, F.
choose one: □ None □ XS110 □ EI with:
(or more)
□ MGSP
□ Discussed with: ____________________________
Homework: /SI110/Cyber Battlefield/Networking – Basics
1. [ 10 / 7 / 4 / 0 ] Fill in the blanks:
A computer (in the most general sense) connected to the Internet is called a ___________. When
communicating on the Internet (without DNS name resolution), the destination to which data is to
be sent is identified by its ____________. Data to be sent across the Internet is broken up into small
chunks which, together with the address of the recipient, form what is called a __________.
2. [ 10 / 5 / 0 ] When we refer to Host 136.160.88.139, what do the four dot separated numbers
represent? Circle your answer.
a. The ASCII encodings of the four characters comprising the host’s name.
b. The hexadecimal representation of the four bytes that make up the host’s IP address.
c. The decimal representation of the four bytes that make up the host’s IP address.
d. The decimal representation of the four bits that make up the host’s IP address.
3. [ 20 / 15 / 10 / 0 ] Use the image below to help answer the following questions (you will also
need to do your own nslookup):
The name of the target host
The IP address of the target host
The IP address of the DNS Server
The name of the DNS Server
4. [ 10 / 7 / 4 / 0 ] Domain names are hierarchical. What part of rona's domain name is common
to the domain names of all hosts at the Academy?
SI110 Homework
Alpha: ________
Name: ____________________
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5. The diagram below is the output from the ipconfig and tracert commands.
a. [ 10 / 7 / 4 / 0 ] In the shell session draw a circle around the IP address of the host that these
commands were executed on.
b. [ 10 / 7 / 4 / 0 ] Draw a square around the command line argument of the destination host that
is being traced to. The dots in the diagram below represent the hosts on the network.
c. [ 20 / 15 / 10 / 0] In the network topology diagram draw lines (connect-the-dots) to indicate the
path between the hosts, according to the output, a packet takes from the source host to the
destination host.
6. [10 / 7 / 4 / 0] When you enter the URL http://www.goarmysports.com/index.html
into your browser’s address bar, what server gets contacted before the browser sends the GET
request to the goarmysports web server?