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Problem:
(a) Application Layer protocols can be classified as connection-oriented or connectionless-oriented.
i. What do you understand by the term protocol? ii. Give an example of one connection-oriented application layer protocol and one connectionless-oriented application layer. iii. Describe how each above-mentioned protocol work by providing as much information about application messages, port numbers, etc...
(b) Describe essential security services and the mechanisms used to enforce those three services.
(c) Given the following received codeword C and the generator polynomial G. Determine if an error has taken place during transmission.
You should show your work and not reply merely Yes or No.
C: 110011001 G: x3 + 1
Q. Mechanical Characteristics of RS232 interface? - 9-pin connector - 9-pin connector is more usually found in IBM-PC but it covers signals for asynchronous serial com
Question : (a) How do you relate the subsequent terms in the context of an information system: data, information and decision-making. (b) Why do you think organisations nowa
ATM designers select cells over packets because of the following facts: Cells are fixed length and memory management for them is easy. Handling variable length packets tends
Two hosts are connected by a path made of four links as shown in the figure below. The links are of data rate R = 2 Mbps each. Host A has a file of size F = 1,000,000 bytes to tran
Question Which elementary logic gate is equivalent to this circuit? Show your working.
TCP (Transmission Control Protocol) and UDP are used by TCP/IP. SPX (Sequenced Packet Exchange) is used with IPX. NBP (Name Binding Protocol) is used with Appletalk.
Transparency really means adumbrating the network and its servers from the users and even the application programmers.
Middleware is distributed software required to support interaction among clients and servers. In short, it is the software that is in the middle of the Client/Server systems and it
What is the difference between TFTP and FTP application layer protocols? Ans) TFTP - Trivial File Transfer Protocol A stripped down version of FTP, easy to use and fast. TFTP
Can you describe RPC (Remote Procedure Calls)?
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