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In an operating system, which of the following data structures is used for directory information:Linked listSorted listHash tableLinked binary tree1, 2, and 41 and 32, 3, and 4All of these

Question

In an operating system, which of the following data structures is used for directory information:Linked listSorted listHash tableLinked binary tree1, 2, and 41 and 32, 3, and 4All of these

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Solution

In an operating system, directory information is typically stored using a data structure known as a Hash table. This is because Hash tables provide very efficient search, insert, and delete operations, which are commonly performed on directory information.

Here's a step-by-step explanation:

  1. A directory in an operating system is a file system cataloging structure which contains references to other computer files, and possibly other directories.

  2. The main operations performed on directories are: search for a file, add a new file, delete a file, and list all files.

  3. To perform these operations efficiently, we need a data structure that can provide fast access, insertion, and deletion.

  4. A Hash table is a data structure that fulfills these requirements. It uses a hash function to compute an index into an array of buckets or slots, from which the desired value can be found.

  5. Therefore, in an operating system, a Hash table is used for directory information.

So, the answer to your question is "2, 3, and 4".

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