Sadhana want her personal office PC to be secured and protected. Suggest some builtin features of the operating system that gives her the protection and security required.

Ans. Some of the built-in features of an operating system that would give Mrs Sadhana protection and security are:
• It allows user accounts for each individual accounts for each user,
• It allows user authorisation can be attained using password protection.
• It allows the user to define and thus allows accessibility of different kind of information for different people.
• It allows data encryption thus allowing protection of data by making it un-understandable for those for which it is not meant for.
• It allows data backup for storing data on a peripheral device other than the hard disk.
• In a networked environment, only trusted computers should be able to share data. Some of the common security threats occur due to hacking, viruses, etc.