Operating System Concepts: Virtual File Systems

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What is the primary advantage of using a Virtual File System (VFS)?

Faster file access times

Enhanced security features

Improved disk space allocation

Modular and extensible design (correct)

What is the purpose of the system call interface (API) in VFS?

To optimize disk usage

To directly interact with specific file systems

To manage file system resources

To provide a common interface for different file systems (correct)

What type of design approach is used in VFS?

Functional-oriented

Object-oriented (correct)

Procedural-oriented

Aspect-oriented

What is the function of the function table in VFS?

To hold addresses of routines to implement file system operations Signup and view all the answers

What type of object represents an individual directory entry in VFS?

Dentry Signup and view all the answers

What is stored sequentially in a directory using a linear list implementation?

File names and pointers to their associated data blocks Signup and view all the answers

What is the primary function of the boot control block in a file system?

To contain information needed by the system to boot the OS from that volume Signup and view all the answers

What is the purpose of the volume control block in a file system?

To contain volume details such as total number of blocks and block size Signup and view all the answers

What is the benefit of having multiple file systems within an operating system?

It enables the use of different file formats such as ISO 9660 and UFS Signup and view all the answers

What is the role of the operating system in implementing a file system?

It provides a modular design for the file system implementation Signup and view all the answers

What is the significance of the superblock in a Unix file system?

It contains volume details such as total number of blocks and block size Signup and view all the answers

What is the purpose of on-disk and in-memory structures in a file system?

To implement a file system Signup and view all the answers

What happens when a file system implementation creates all FCBs at file-system creation time?

An FCB is allocated from the set of free FCBs Signup and view all the answers

What is the purpose of a boot block in a file system?

To point to the boot volume or boot loader Signup and view all the answers

What is typically contained in the root partition of a file system?

The OS files and system directories necessary for booting Signup and view all the answers

What happens to other partitions during the boot process?

They are mounted automatically or manually Signup and view all the answers

What is checked during the mount time of a file system?

The file system's consistency Signup and view all the answers

What is the primary purpose of a file control block (FCB)?

To represent a file in a file system Signup and view all the answers

Operating System Concepts: Virtual File Systems

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Questions and Answers

What is the primary advantage of using a Virtual File System (VFS)?

What is the purpose of the system call interface (API) in VFS?

What type of design approach is used in VFS?

What is the function of the function table in VFS?

What type of object represents an individual directory entry in VFS?

What is stored sequentially in a directory using a linear list implementation?

What is the primary function of the boot control block in a file system?

What is the purpose of the volume control block in a file system?

What is the benefit of having multiple file systems within an operating system?

What is the role of the operating system in implementing a file system?

What is the significance of the superblock in a Unix file system?

What is the purpose of on-disk and in-memory structures in a file system?

What happens when a file system implementation creates all FCBs at file-system creation time?

What is the purpose of a boot block in a file system?

What is typically contained in the root partition of a file system?

What happens to other partitions during the boot process?

What is checked during the mount time of a file system?

What is the primary purpose of a file control block (FCB)?

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