Enhance your understanding of file system access and storage permissions through practical questions on access modes, permission settings, and common storage concepts. This quiz is designed to clarify essential security practices and concepts for handling files and directories securely.
Which permission must a user have to open and view the contents of a text file on a typical computer system?
Explanation: The 'Read' permission allows a user to open and see the contents of a file. 'Write' permission lets users modify or add data to the file, which is not required for viewing. 'Execute' is typically needed for running programs, and 'Delete' refers solely to removing the file. Therefore, only 'Read' is essential for viewing file contents.
When a new text file is created, which permission is usually set by default to allow the user to edit its content?
Explanation: The 'Write' permission enables users to edit and modify the file's contents, which is commonly set by default for a file's creator. 'Execute' is reserved for running scripts or programs. 'Transfer' and 'Share' are not standard file system permissions; they may refer to actions but are not actual permission types. Thus, 'Write' is the correct choice.
If a user needs to access the list of files in a folder but not add or delete any files, which permission is most critical?
Explanation: 'Read' permission on a directory allows viewing the list of files inside it. 'Execute' permission on a directory lets users enter or browse into it but does not show the file list without 'Read.' 'Write' would be necessary to add or remove files, which isn't needed here. 'Format' is not a standard permission and could refer to erasing storage instead. Therefore, 'Read' best matches the scenario.
What happens if a user is denied write permission on a file, but retains read permission?
Explanation: If write permission is denied but read permission remains, users can see the file's content but cannot alter it. 'They can edit but not view the file' and 'They can delete the file' are both incorrect, as editing or deleting require write or specific delete permissions. 'They cannot open the file' is wrong since read permission allows opening. Thus, viewing without modifying is the result.
On a script file, which permission lets the user run the script as a program?
Explanation: The 'Execute' permission allows users to run files as programs or scripts. 'Write' enables modifications but does not permit execution. 'List' may refer to directories, not files, and 'Compile' is not a standard file permission; it is a programming action. Therefore, only 'Execute' meets the requirement for running scripts.
Which type of storage area is intended to be accessible only by the app or service that created the files?
Explanation: 'Private storage' is designed for access solely by the creating app or service, ensuring security and privacy. 'Public storage' is accessible to all users and apps, while 'Shared workspace' implies collaboration or open access. 'Temporary cache' is for short-term data but may be accessible by others if not protected. Hence, 'Private storage' is the correct answer.
Why is file ownership important when setting storage permissions on a multi-user system?
Explanation: File ownership allows the owner to set or change permissions on the file, enabling effective access control in a multi-user environment. It does not determine the file size or directly help recover deleted files. File fragmentation is related to storage structure and is unrelated to file ownership. Therefore, ownership's primary role is in permission management.
If an app requests permission to access your photos but you deny it, what will most likely happen?
Explanation: Denying permission means the app cannot access or use your photos, so any features requiring photos will not function. 'The app can still access the photos secretly' is incorrect, as permissions are enforced by the system. Photos are not deleted by denial, nor does denying permission cause the device to restart. Thus, loss of related features is the accurate outcome.
Given the permission setting 'rwxr--r--', which rights does the file owner have?
Explanation: The 'rwx' portion indicates that the owner has read (r), write (w), and execute (x) permissions. 'r--' for others means only read permission, not execute or write. 'Write and execute' and 'read and execute' are incomplete for the owner’s rights. 'Read only' is incorrect as the owner has more permissions. All three—read, write, and execute—are granted for the file owner.
Which scenario best describes the use of temporary storage on a device?
Explanation: Temporary storage is intended for short-lived files needed during an app session, and data can be cleared when the app closes or the device restarts. Storing photos permanently and backing up user documents require persistent storage, not temporary. Critical system files also require permanent and secure storage. Thus, temporary storage best fits short-term data management.