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COMP2250 Data Communications
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On which Architecture would you expect the "client-side" to be doing most of the processes?
What is the decimal number represented by the following binary number?
0111
What is the hexadecimal number represented by the following binary number?
1010
If you want to write the hex number 'b', then write 0xb in the answer below.... that is the number zero, followed by the lower case x followed by your hex number in lower case
A message is to be delivered from a web browser to a web server.
The destination web server is www.snazzy.com.
- At Snazzy Inc the web server is being run on port 8080.
- Snazzy Inc is located in the United States and it's service provider is Verizon.
The client is at Macqaurie University.
- The tab in the web browser is given dynamic port 5362.
- Macquarie University's service provider is AARNet.
The following table show the addresses for each interface in the diagram.
| Device | Interface Name | Interface MAC Address | Interface IP Address |
| Macquarie Uni Lab PC | Int11 | 34:23:45:cb:25:a5 | 137.111.46.5 |
| Macquarie Uni Switch | 52:23:9e:81:d3:71 | ||
| Macquarie Uni Router | Int21 | 25:63:f3:a6:3e:d5 | 137.111.46.1 |
| Macquarie Uni Router | Int31 | 25:63:f3:a6:3e:d6 | 137.111.0.1 |
| AARNet Router | Int32 | 61:45:f3:da:97:1e | |
| Verizon Router | Int62 | 85:32:98:4d:ea:91 | |
| Snazzy Inc Router | Int61 | 73:63:f3:52:44:c2 | 154.65.0.1 |
| Snazzy Inc Router | Int71 | 73:63:f3:52:44:c3 | 154.65.3.1 |
| Snazzy Inc Switch | 49:23:9e:21:fa:3d | ||
| Snazzy Inc Web Server | Int81 | 63:23:45:fa:4e:3a | 154.65.3.45 |
Question: consider the response from the web server back to the client.When the response traverses Snazzy Inc's router, crossing from Link 7 to Link 6, briefly explain what happens to the packet.Your answer should include bullet points that indicate the source and destination address at layers 2, 3, and 4 of the packet header.
YOUR ANSWER SHOULD NOT EXCEED 8 LINES OF TEXT
Among the application layer architectures we studied in COMP2250, which one do you think Echo360 might use to support your lecture classes? Explain your reasoning. (We are not asking you to know what Zoom does, just to reason about what would be a good architecture for it to use.)
YOUR ANSWER SHOULD NOT EXCEED 8 LINES OF TEXT
What is the hexadecimal number represented by the following binary number?
0110
If you want to write the hex number 'a', then write 0xa in the answer below.... that is the number zero, followed by the lower case x followed by your hex number in lower case
What is the hexadecimal number represented by the following binary number?
10110010
If you want to write the hex number 'ae', then write 0xae in the answer below.... that is the number zero, followed by the lower case x followed by your hex number in lower case
Of the choices below, which would be considered a layer 5, 6, or 7 protocol? (Select ALL that apply)
On which Architecture would you expect the processing / functionality to be distributed between clients and servers?
Of the choices below, which architecture approach would be the most "scalable"? (Scalability is an indication of how easy it is to increase or decrease the usage / performance capability)