access for group and other, read/execute access for group and none for other, or read/execute access for both group and other. Briefly discuss the advantages and disadvantages of each of these cases, including an example of a type o

access for group and other, read/execute access for group and none for other, or read/execute access for both group and other. Briefly discuss the advantages and disadvantages of each of these cases, including an example of a type o

Programming Logic & Design Comprehensive

9th Edition

ISBN:9781337669405

Author:FARRELL

Publisher:FARRELL

Chapter7: File Handling And Applications

Section: Chapter Questions

Problem 6PE

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Machines that use artificial intelligence to learn from the environment and past experiences to perform better in the presence of variability and uncertainty are called intelligent machines. Intelligence develops according to environment and experience. It is human-like behavior. When the computer system or any programmed machine learns from the inputs and corresponding outputs, it can be called an intelligent machine.

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In the traditional UNIX file access model, UNIX systems provide a default setting for newly created files and directories, which the owner may later change. The default is typically full access for the owner combined with one of the following: no access for group and other, read/execute access for group and none for other, or read/execute access for both group and other. Briefly discuss the advantages and disadvantages of each of these cases, including an example of a type of organization where each would be appropriate

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Attributes associated with a file can be maintained in several places as discussed inthe course content:a. Within the set of open file descriptorsb. Within the system-wide file table entry for the filec. Within the ‘i-node’ (or ‘v-node’)These attributes can be associated with the actual file (e.g. the file size), or can be associatedwith an open instance of the file (e.g. whether the file is opened for reading or writing, whether thefile is opened for non-blocking I/O, etc.).What would be preferred location of the following attributes of a file and why? Discuss anytradeoffs if that attribute could be in more than one of the above.a. The owner of the file.b. The “read/write” pointer of the open file.c. Whether the file is opened for reading, writing, or both.
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