OPERATING SYSTEMS - UNIT V

What is the primary function of a file manager?

• To manage network connections.

• To manage files and folders on a computer or storage device.

• To create new software applications.

• To enhance the computer's performance.

Explain the concept of physical storage allocation.

• Physical storage allocation is the process of compressing data to save space.

• Physical storage allocation is the assignment of physical space on a storage medium for data storage.

• Physical storage allocation involves the encryption of data for security purposes.

• Physical storage allocation refers to the logical organization of data in a database.

What are the different access methods in file management?

• Batch access

• Buffered access

• Stream access

• Sequential access, direct access, indexed access, random access

Describe the levels in a file management system.

• The three levels in a file management system are: physical level, logical level, and user level.

• File level, directory level, and system level.

• Storage level, access level, and presentation level.

• Data level, interface level, and application level.

What role does the Access Control Verification Module play?

• It verifies user permissions and access rights.

• It stores user data securely.

• It generates access logs for auditing.

• It manages network traffic.

How does file organization impact system performance?

• File organization has no effect on system performance.

• File organization is irrelevant to data security.

• File organization only affects user interface design.

• File organization significantly impacts system performance by influencing data access speed and storage efficiency.

What are the advantages of using a hierarchical file structure?

• Slower access times

• Limited user permissions

• Increased file size

• Advantages of using a hierarchical file structure include improved organization, easier navigation, better data management, reduced clutter, and enhanced security.

Define the term 'file allocation table' and its purpose.

• A file allocation table is a protocol for network communication.

• A file allocation table (FAT) is a data structure that manages disk space allocation for files, enabling efficient file storage and retrieval.

• A file allocation table is a type of file format used for images.

• A file allocation table is a backup system for lost files.

What is the difference between sequential and random access methods?

• Sequential access is ordered; random access allows any order.

• Sequential access can access any data point instantly.

• Random access requires a specific order to access data.

• Sequential access is faster than random access.

How can access control mechanisms enhance data security?

• Access control mechanisms allow anyone to access sensitive data.

• Access control mechanisms enhance data security by increasing data visibility.

• Access control mechanisms are only necessary for physical security measures.

• Access control mechanisms enhance data security by restricting access to sensitive data to authorized users only.