Which of the following statements about version control are true? Select 3 options. 1.With distributed version control, multiple copies of the entire project are maintained on the developers’ computers.
2.Early version control systems needed to use locks to keep files synchronized, but newer version control systems do not use locks at all.
3. In a centralized version control system, the project files are stored in a repository or database on a server.
4.Git and Mercurial are examples of distributed version control systems.
5.Version control systems can only be used by teams of developers, rather than individuals.

You have a linux system that has a 1000gb hard disk drive, which has a 90gb partition containing an ext4 filesystem mounted to the / directory and a 4gb swap partition. currently, this linux system is only used by a few users for storing small files; however, the department manager wants to upgrade this system and use it to run a database application that will be used by 100 users. the database application and the associated data will take up over 200gb of hard disk space. in addition, these 100 users will store their personal files on the hard disk of the system. each user must have a maximum of 5gb of storage space. the department manager has made it very clear that this system must not exhibit any downtime as a result of hard disk errors. how much hard disk space will you require, and what partitions would you need to ensure that the system will perform as needed? where would these partitions be mounted? what quotas would you implement? what commands would you need to run and what entries to /etc/fstab would you need to create? justify your answers.