Computer Networks Answers

Let G(x) = x5

+ x4

+ x2

+ 1 be the polynomial generator(pattern), T = 

101000110101110 be the message received by the destination node. Would the 

receiver accept the message? Why?

Let G(x) = x5

+ x4

+ x + 1 be the polynomial generator(pattern) and Message(M) = 

11100011. Find the CRC for this message and the codeword.

Given the following Hamming-encoded codeword received at receiver as 

"01100001111" having 7 bits of data, 4 bits of error correction code. Determine if the 

data has been received correctly, and if it is incorrect (assuming that no more than a 

single bit has changed): 

 In NOT less than three pages, critically discuss how Cloud computing and remote access has supported the COVID-19 response. (You are to conduct independent research and consult other academic materials/ articles to corroborate your discussion. Include all references consulted). 

By default, when you store, use, share or communicate your data in the cloud, usually, your data is in a raw, unencrypted format, known as ‘plaintext’, unless you have encrypted your data before being saved or transmitted. If you leave your data unencrypted, you will face the risk that anyone who gains access to your account can read, copy or delete your data. This leaves your data leaked or exposed to unauthorized individuals and entities. Thus, end-to-end data encryption including your emails if stored in Cloud servers, at rest, in-use and in motion, is a must.

Discuss various methods of encryption that can secure data in storage and in transit. 

Differentiate between wired networking and wireless networking and critically outline five major advantages and disadvantages of each.

Cloud computing is an emerging and a good model of delivering computing services for Education by relying on existing technologies such as Internet, web services and virtualization. It offers Richfield substantial cost-saving and more efficient way of providing IT services to the students and staff. Richfield can reduce their IT services cost such as software, hardware, and maintenance of the applications. Following the above statement, critically discuss the three service models of cloud computing, giving examples of where each service model is applied.