Given a list of courses and their prerequisites, compute the order in which courses must be taken so that when taking a courses, all its prerequisites have already been taken.All the files that the program would read from are in Unix formatYou must create a directed graph corresponding to the data in the file.The graph will have as many vertices as different courses listed in the file.You can represent the vertices and edges however you want. For each line in the file, the code can extract the first course and the prerequisites for it.If you cannot process each line in the file correctly, you can use a modified input file that shows on each line, the number of courses, but you would lose the 15 points dedicated to line processing. If your program works with the "easy files", in order to make it easy for the TAs to know which file to provide, please name your C program courses_graph_easy.c.

Design and submit a plan consisting of simple steps for someone to follow in selecting their own wireless devices. Just have to say the important steps of selecting wireless devices.

I have attached the instructions and grading rubric below. Step 4 is most important- Earlier in the course, you learned about Services. An often neglected but critical service is running backups. This project serves as a first step towards creating and then automating the backup process in both the Windows and Linux environments. This project requires that you use an existing install of Windows Server from Project 1 and Ubuntu Server from Project 2. You will include a reflective paper of at least 2 pages in current APA format that details the installations, configurations, challenges, and solutions to complete the following systems administration project: 1)In the Windows server environment, you will create two separate scripts within PowerShell that will perform two types of backups of a given source directory and store the backed up files in a given target directory (preferably on a separate drive). The first script will perform a full backup and the second script will perform an incremental backup on the remaining days of the week. Lastly, using the Microsoft Management Console Task Scheduler, you will set up a schedule for the first script (the full backup script) to run on Sundays and Wednesdays and a schedule for the second script (the incremental backup script) to run on the remaining days of the week. 2)Provide three pieces of evidence showing that your scripts were successful: 1) a copy of your scripts; 2) clear screenshots of the Task Scheduler interface showing the correctly scheduled tasks; and 3) results of the backup processes (specifically the files in both the source and target directories). 3)In the Ubuntu environment, you will perform the same tasks as the last two steps. You will create two separate BASH scripts that will perform two types of backups of a given source directory and store the backed up files in a given target directory (preferably on a separate drive). The first script will perform a full backup and the second script will perform an incremental backup on the remaining days of the week. For assistance with this, Google “incremental backup script in bash” for starters. Once you have these scripts working, use the cron command to schedule the scripts. As the previous steps dictate, you will set up a schedule for the first script (the full backup script) to run on Sundays and Wednesdays and a schedule for the second script (the incremental backup script) to run on the remaining days of the week. 4)Provide three pieces of evidence showing that your scripts were successful: 1) a copy of your scripts; 2) clear screenshots of the scheduled scripts using crontab or the contents of the /etc/cron.* directories showing the correctly scheduled tasks; and 3) results of the backup processes (specifically the files in both the source and target directories). The paper must use appendixes to reference screenshots along the way. Screenshots must identify a unique piece of information on the user’s computer such as a picture and include the system date and time in each screen capture. At the minimum, screenshots must exist during the initial setup of VirtualBox, installation of the operating system, configuration of the user accounts, security updates, and firewall configuration of the new operating systems. Subsequent screenshots must exist that detail the other deliverables in each phase (e.g., such as DNS).