Software engineering We wish to study more closely interrupts requiring the most

Question

Software engineering

We wish to study more closely interrupts requiring the most time for service. A record has been created for each interrupt occurring in the last 24 hours as follows indicating the interrupt type, when the interrupt occurred and the required time for service. For your convenience, a sequential file (file/database) has been created sorted by interrupt type (clock, hard disk, keyboard, mouse, software USB). A sample follows File/Record information interrupt type, time interrupt occurred, time to process Clock Clock Clock Mouse Mouse Software Software Software 12 milliseconds 15 milliseconds 3 milliseconds 1 millisecond 0.5 milliseconds 25 milliseconds 15 milliseconds 17 milliseconds 8:47 A.M 6:89 P.M 8:14 AM 2.52 A.M 2:01 A.M 5.20 P.M Using Jackson's Backtracking technique, please design a report for each interrupt type where the time spent exceeds a threshold value supplied at runtime by those conducting the study. For selected interrupt types, first print the interrupt category in the report followed by all interrupt records of the selected type. Assume the unbounded buffer problem If the current threshold is 27 milliseconds then only the clock and software interrupts will appear in the report for the above partial results. The mouse interrupts will not appear in the report. Sample Report: Clock Clock Clock Clock Software Software Software Software In addition to the design, you must explain how the unbounded buffer problem will be physically implemented. 8:47 A.M 6:89 P.M 8:14 A.M 12 milliseconds 15 milliseconds 3 milliseconds 201 A.M 6:30 AM 5.20 P.M 25 milliseconds 15 milliseconds 17 milliseconds

Explanation / Answer

Communication at the network layer is host-to-host (computer-to-computer); a computer somewhere in the world needs to communicate with another computer somewhere else in the world. Usually, computers communicate through the Internet. The packet transmitted by the sending computer may pass through several LANs or WANs before reaching the destination computer.

For this level of communication, we need a global addressing scheme; we called this logical addressing. The term IP address means logical address in the network layer of the TCP/IP protocol suite. An IPv4 address is a 32-bit address that uniquely and universally defines the connection of a device (for example, a computer or a router) to the Internet. IPv4 uses 32-bit addresses, which means that the address space is 232232.

In classful addressing, the address space is divided into five classes: A, B, C, D, and E. Each class occupies some part of the address space.

In classful addressing, an IP address in class A, B, or C is divided into netid and hostid. These parts are of varying lengths, depending on the class of the address.

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