Data: Input is got from the user through the input device. Input refers to the raw data into a computer system. It is the representation of objects and events which are stored and recorded in the computer. It exists in variety of form such as number, value, variable, and so on. Information: Converting the meaningful form of raw data is called information. These are the processed data that increase the information of the individual using it. Data are useless in their present form so it is preprocessed and represent it as the information to the user. It is converted into the meaningful form during the processing phase of the information processing cycle. Database : Database is an organized data collection, and every data present is related to each other in some way. It contains the occurrences of data to satisfy the needs of the user in an organization.

Question

6.3A-3. Multiple Access protocols (3). Consider the figure below, which shows the arrival of 6 messages for transmission at different multiple access wireless nodes at times t=0.1, 1.4, 1.8, 3.2, 3.3, 4.1. Each transmission requires exactly one time unit. 1 t=0.0 2 3 45 t=1.0 t-2.0 t-3.0 6 t=4.0 t-5.0 For the CSMA protocol (without collision detection), indicate which packets are successfully transmitted. You should assume that it takes .2 time units for a signal to propagate from one node to each of the other nodes. You can assume that if a packet experiences a collision or senses the channel busy, then that node will not attempt a retransmission of that packet until sometime after t=5. Hint: consider propagation times carefully here. (Note: You can find more examples of problems similar to this here B.] ☐ U ப 5 - 3 1 4 6 2

Answer 1

Question

Chapter 1, Problem 6RQ

Program Plan Intro

Data:

Input is got from the user through the input device. Input refers to the raw data into a computer system. It is the representation of objects and events which are stored and recorded in the computer. It exists in variety of form such as number, value, variable, and so on.

Information:

Converting the meaningful form of raw data is called information. These are the processed data that increase the information of the individual using it.

Data are useless in their present form so it is preprocessed and represent it as the information to the user.

It is converted into the meaningful form during the processing phase of the information processing cycle.

Database:

Database is an organized data collection, and every data present is related to each other in some way. It contains the occurrences of data to satisfy the needs of the user in an organization.

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6.3A-3. Multiple Access protocols (3). Consider the figure below, which shows the arrival of 6 messages for transmission at different multiple access wireless nodes at times t=0.1, 1.4, 1.8, 3.2, 3.3, 4.1. Each transmission requires exactly one time unit. 1 t=0.0 2 3 45 t=1.0 t-2.0 t-3.0 6 t=4.0 t-5.0 For the CSMA protocol (without collision detection), indicate which packets are successfully transmitted. You should assume that it takes .2 time units for a signal to propagate from one node to each of the other nodes. You can assume that if a packet experiences a collision or senses the channel busy, then that node will not attempt a retransmission of that packet until sometime after t=5. Hint: consider propagation times carefully here. (Note: You can find more examples of problems similar to this here B.] ☐ U ப 5 - 3 1 4 6 2

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