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When transferring a file between two computers, (at least) two acknowledgment strategies are possible. In the first one, the file is chopped up into packets , which are individually acknowledged by the receiver, but the file transfer as a whole is not acknowledged. In the second strategy, the packets are not acknowledged individually, but the entire file is acknowledged when it arrives. Discuss the two approaches.
Explain how you would incorporate new servers into environment and how you would address what additional changes might be needed.
You have been asked to sketch a LAN with operation over a distance of about 100m.
Assume that sender sends silence suppressed RTP stream of G.711 audio to receiver (G.711 is the name of standard for 64Kbps PCM). Outline algorithm which uses sequence numbers and time stamps of RTP packets to find out beginning of new talk spurt?
Consider transferring a large file of L bytes from Host A to Host B. Assume a MSS of 1460 bytes. What is the maximum value of L such that the TCP sequence numbers are not exhausted?
Suppose the role of IT consultant to new nonprofit organization, Free Flu, which gives flu shots to elderly. Distinguish between any Web pages or Web servers you would use for this task.
By using a laptop computer along with a wireless connection into company’s local area network, you download a Web page from Internet. State all several network connections involved within this operation.
Try to create a technique which will allow Arnold to establish a TCP connection with Bernard without application-specific NAT configuration. If you have difficulty devising such technique, explain why.
A computer system provides protection using the Bell-LaPadula policy. How would a virus spread if: The virus were placed on the system at system low (the compartment that all other compartments dominate)?
You have been hired by a small company to install backbone to connect four 100base-T Ethernet LANs (each using one 24-port hub) and to give a connection to Internet. Develop simple backbone and determine total cost.
Business processes and needs ultimately drive the type of cable media and hardware you select. What factors might determine how we select which ones are appropriate for our organization?
Let DES(x, K) represent the encryption of plaintext x with key K using the DES cryptosystem. Prove that y' = c(y) (i.e., if we complement the plaintext and the key, then the ciphertext is also complemented).
One-way to solidify the concepts of client/server computing and interprocess communication is to develop the requirements for a computer game which plays "Rock, Paper, Scissors" using these techniques.
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