ITPEC IP April 2024 Question 17

Question

In a file system with the hierarchy structure shown in the Figure, when “..\..\DIRB\Fn.txt” is specified from the directory marked with an * (the current directory), which of the following is the file that is referenced? Here, [ ] in the Figure show the directory name, and the reference method for a file is as below.

[Reference method]
(1) A file is referenced as “directory name\ ⋯ \directory name\file name”, where the directory names on the path are listed with a separator “\” in sequence, followed by “\” and the file name.
(2) The current directory is represented by “.” (a period).
(3) The directory one (1) level above is represented by “..” (two periods).
(4) When a reference begins with a “\”, it is assumed that the leftmost root directory has been omitted.

[Figure: A directory tree drawn left to right with directories as boxes. Root has two subdirectories, DIRB and DIRA. That DIRB holds a directory DIRA, a file (2) Fn.txt, and a directory DIRB. The DIRA under it holds a directory DIRB marked * (the current directory), which holds the file (1) Fn.txt. The lower DIRB (Root\DIRB\DIRB) holds a directory DIRB, which holds the file (3) Fn.txt, and the file (4) Fn.txt.]

Accepted Answer

d) Fn.txt at (4)

Answer

a) Fn.txt at (1)

Answer

b) Fn.txt at (2)

Answer

c) Fn.txt at (3)

Part	Now at
start	`Root\DIRB\DIRA\DIRB`
`..`	`Root\DIRB\DIRA`
`..`	`Root\DIRB`
`DIRB`	`Root\DIRB\DIRB`
`Fn.txt`	the file directly in `Root\DIRB\DIRB`, which is (4)

Explanation