The general way of protection is to associate identity-dependent access with all the files and directories an list called access-control list (ACL) which specify the names of the users and the types of access associate with each of the user.
What does file protection mean?
[′fīl prə‚tek·shən] (computer science) A mechanical device or a computer command which prevents erasing of or writing upon a magnetic tape but allows a program to read the data from the tape.
What mechanism is used for protection?
In computer science, protection mechanisms are built into a computer architecture to support the enforcement of security policies. A simple definition of a security policy is “to set who may use what information in a computer system”.
Which type of file protection is used to hide file?
Steganography is the technique of hiding secret data within an ordinary, non-secret, file or message in order to avoid detection; the secret data is then extracted at its destination. The use of steganography can be combined with encryption as an extra step for hiding or protecting data.
Why it is necessary to protect a document?
Documents are sent to the wrong “unauthorized” person by mistake, either via email or other means. Unsecured documents and data are found on a lost or stolen device. … Poor security or infrastructure on protected networks have left documents and data vulnerable to unauthorized sharing.
What is file explain types of file?
There are three basic types of files: regular. Stores data (text, binary, and executable). directory. Contains information used to access other files.
What is OS file structure?
A File Structure should be according to a required format that the operating system can understand. … An object file is a sequence of bytes organized into blocks that are understandable by the machine. When operating system defines different file structures, it also contains the code to support these file structure.
What resources does an operating system need to protect and secure?
Protection and security requires that computer resources such as CPU, softwares, memory etc. are protected. This extends to the operating system as well as the data in the system. This can be done by ensuring integrity, confidentiality and availability in the operating system.
What are the measures one should take to secure data?
Securing Your Devices and Networks
- Encrypt your data.
- Backup your data. …
- The cloud provides a viable backup option. …
- Anti-malware protection is a must.
- Make your old computers’ hard drives unreadable. …
- Install operating system updates. …
- Automate your software updates.
- Secure your wireless network at your home or business.
What is data protection mechanisms?
Protection mechanisms are used to enforce layers of trust between security levels of a system. Particular to operating systems, trust levels are used to provide a structured way to compartmentalize data access and create a hierarchical order.