Bob and Alice are using a unix file system as described in Section 2.5. The file system

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Bob and Alice are using a unix file system as described in Section 2.5. The file system has two disks, mounted as /disk1 and /disk2. A system administrator creates a “home” directory containing symbolic links to the home directories of Bob and Alice via the commands:

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Subsequently, Bob types the following to his shell:

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and receives an error. Which of the following best explains the problem?

A. The unix file system forbids the use of “..” in a cd command when the current working directory contains a symbolic link.

B. Since Alice’s home directory now has two parents, the system complains that “..” is ambiguous in that directory.

C. In Alice’s home directory, “..” is a link to /disk1, while the directory “bob” is in /disk2.

D.  Symbolic links to directories on other disks are not supported in the unix file system; their call-by-name semantics allows their creation but causes an error when they are used.

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Principles Of Computer System Design An Introduction

ISBN: 9780123749574

1st Edition

Authors: Jerome H. Saltzer, M. Frans Kaashoek

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