Explain all types of relationship between a sender and a receiver in message passing with diagram.
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- Explain all types of relationship between a sender and a receiver in message passing with diagram.
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- Explain conditional transfer in simple terms.Explanation of the Sliding Window Protocol concept, with a Sliding Window Protocol chronology.Computer Science 1.a) In a TCP communication, the receiver set the window size, rwnd=850. On the sender side, Sf=1077 and Sn=1115. The receiver sent an acknowledgement packet with ackNo=1097 and rwnd=830. What is the sliding window size on the sender’s end? Did the window open or close on the sender’s end and from which direction/s (e.g left and/or right direction/s)? b)For the above scenario, the sender now sends 50 bytes and awaits an acknowledgment. What is the Sf and Sn now?
- Are we missing out on any opportunities by not adhering to established protocols?At a minimum, there are four compelling arguments in favour of using specifications throughout the creation of software.Electronic mail systems differ in the manner in which multiple recipients are handled. In some systems, the originating mail handler makes all the necessary copies, and these are sent out independently. An alternative approach is to determine the route for each destination first. Then a single message is sent out on a common portion of the route, and copies are made only when the routes diverge, and this process is referred to as ‘mail bagging’. Leaving aside the considerations of security, discuss the relative advantages and disadvantages of two methods. Discuss the security requirements and implications of the two methods.What exactly are encapsulation and de-encapsulation? How does it function in a network?
- Magic Decoder Ring. A one-time pad is a coding device that uses each character of a key string only once to encode and decode a corresponding character in a message string. Thus, the first character in the key is used to encode and decode the first character in the clear message, the second character in the key is used with the second character in the message, etc. No portion of the key is reused in subsequent messages, making for a very solid coding system, assuming a randomly generated key. You will need to create a class titled MagicDecoderRing that contains the variables and functions needed for obtaining the clear and key texts, encoding and decoding the messages, writing out the encoded message etc. You will need to instantiate an instance of this class in your main function to run your program and encode and decode messages. You need to further break your MagicDecoderRing code down into many small functions that each can be described with a single sentence without ‘ands” and…Prolog Consider the (directed) network in the attached document. We could represent this network with the following Prolog statements: link(a,b). link(a,c). link(b,c). link(b,d). link(c,d). link(d,e). link(d,f). link(e,f). link(f,g). Now, given this network, we say that there is a "connection" from a node "X" to a node "Y" if we can get from "X" to "Y" via a series of links, for example, in this network, there is a connection from "a" to "d", and a connection from "c" to "f", etc. Formulate the appropriate Prolog rule "connection(X,Y)" which is true if (and only if) there is a "connection" from "X" to "Y" as described above --- note that this rule will be recursive. Test this rule out on the above network, to see if it is working correctly. Once it is working correctly, you will note that, e.g., the query "connection(a,e)." will give "true" multiple times. This means something, actually:Magic Decoder Ring. A one-time pad is a coding device that uses each character of a key string only once to encode and decode a corresponding character in a message string. Thus, the first character in the key is used to encode and decode the first character in the clear message, the second character in the key is used with the second character in the message, etc. No portion of the key is reused in subsequent messages, making for a very solid coding system, assuming a randomly generated key. You will need to create a class titled MagicDecoderRing that contains the variables and functions needed for obtaining the clear and key texts, encoding and decoding the messages, writing out the encoded message etc. You will need to instantiate an instance of this class in your main function to run your program and encode and decode messages. You need to further break your MagicDecoderRing code down into many small functions that each can be described with a single sentence without ‘ands” and…
- The message validation server is able to validate two types of messages - type A and type B messages correspondingly. It is commonly believed that the validation time of type B message is somewhat longer than the validation of type A message. Additionally, it's commonly believed that the actual validation time depends largely only on the type of messages (A and B types) and doesn't depend in an essential amount on the message content. However, nobody hasn't checked these claims in practice. We have reliable statistics for four different sessions: • 1st session - 17,648 of type A messages and 11,414 type B messages were validated, session lasted 6 minutes and 7.90 seconds. . 2nd session - 6836 of type A messages and 12,618 type B messages were validated, session lasted 4 minutes and 23.80 seconds. • 3rd session - 24,616 of type A messages and 17,648 type B messages were validated, session lasted 8 minutes and 56.10 seconds. . 4th session - 10,684 of type A messages and 12,684 type B…PERL programming Consider a network with some hosts. The traffic from one host to the other is provided. The question is to find the total bytes that are moving in the network from one host to the other and also for all the routes. The total bytes that are transferred for the day is as below. peter ann 1250 peter mary 910 mark mary 1250 peter mary 450 peter andy 2924 paul peter 1218 paul helen 199 The first name is the source host, the second is the destination host and the number is the bytes that are transferred.Describe the link between the notions of dependability and availability in computer networks. It has become obsolete for the following reasons: Is a more in-depth conversation required?