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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

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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.

DeviceInterface NameInterface MAC AddressInterface IP Address
Macquarie Uni Lab PCInt1134:23:45:cb:25:a5137.111.46.5
Macquarie Uni Switch 52:23:9e:81:d3:71 
Macquarie Uni RouterInt2125:63:f3:a6:3e:d5137.111.46.1
Macquarie Uni RouterInt3125:63:f3:a6:3e:d6137.111.0.1
AARNet RouterInt3261:45:f3:da:97:1e 
Verizon RouterInt6285:32:98:4d:ea:91 
Snazzy Inc RouterInt6173:63:f3:52:44:c2154.65.0.1
Snazzy Inc RouterInt7173:63:f3:52:44:c3154.65.3.1
Snazzy Inc Switch 49:23:9e:21:fa:3d 
Snazzy Inc Web ServerInt8163:23:45:fa:4e:3a154.65.3.45

 

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

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Let n be a positive integer. Which of the following statements are equivalent?

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Що буде результатом виконання функції

int [] fun1 (int [] k)

{

 int kol = k.Length;

 int [] res = new int [kol];

 for (int i = 0; i <k.Length; i + +)

   res [kol] = k[i]/2;

   return res;

}

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Match the definitions with the authors/researchers.

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Of the choices below, which would be considered a layer 5, 6, or 7 protocol? (Select ALL that apply)

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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)

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On which Architecture would you expect the processing / functionality to be distributed between clients and servers?

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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

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