LOOK and SCAN:

SSTF or Shortest Seek Time First is an algorithm that is used to determine the order in which the data is accessed from the disk prove to be useful and beneficial. This is used to improve the disk access performance.

Using the Shortest Seek Time First (SSTF) algorithm the disk arm will access the data from that track which is nearest to its current position and move away gradually.

One of the risk with Shortest Seek Time First (SSTF) algorithm is that certain requests would keep getting relegated to the backof the queue because certain requests are serviced first. With more and more requests arriving, the probability that such a request will ever be serviced is very minimal and this phenomenon is known as “Starvation” and hence this algorithm is not the optimal one.

In order to solve this problem there are two better algorithm elevator algorithm or SCAN and LOOK algorithm...

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Chapter 11, Problem 19RETC

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This battle room is focused on entry level tasks for a network analyst where you will be given trials and reconnaissance, sensor tuning, log aggregation, SIEM queries, and network analysis. For this week’s project, complete the following tasks: From your Project Ares portal, LOG IN Click on LAUNCH GAME. Select the region NORTH AMERICA Click on Battle School Under the BATTLE SCHOOL pop-up window, click on START TRAINING. Under the BATTLE ROOMS tile, click on ENTER. Under the NETWORK ANALYST tile, click on PLAY. Wait for the Battle Room to load. While loading, the BATTLE ROOM button will display red. Once the Battle Room is loaded, the BATTLE ROOM button will turn yellow and the center of the disk display will indicate CONNECTED. Click on the BATTLE ROOM button to enter the Battle Room. Below the TASKS folder, make sure you click on INSTRUCTIONS to download the Network Analyst Fundamentals material. In the Battle Room, under the TASKS menu select task INTRUSION DETECTION. Complete…

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Essentials of Computer Organization and Architecture

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