Operating System MCQ - File Systems

6 The statement fseek(fp,0L,0)i - if syntactically correct,means

A
fp is a file pointer
B
position the read-write-head at the start of the file
C
position the read-write-head at the end of the file
D
None of these

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7 The process of accessing data stored in a tape is similar to manipulating data on a

A
Stack
B
Queue
C
List
D
None of these

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8 If a file is opened in r+ mode then

A
reading is possible
B
writing is possible
C
both (A) & (B)
D
all the above comments are true

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r+ - If is opened successfully fopen( ) loads it into memory and sets up a pointer which points to the first character in it. Returns NULL, if unable to open the file.Operations possible - reading existing contents, writing new contents, modifying existing contents of the file
r - Searches file. If the file is opened successfully fopen( ) loads it into memory and sets up a pointer which points to the first character in it. If the file cannot be opened fopen( ) returns NULL.
Operations possible – reading from the file.

9 If a file is opened in w+ mode then

A
after write operation reading is possible without closing and re-opening
B
reading is possible
C
writing is possible
D
All of the above

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10 ftell

A
is a function
B
gives the current file position indicator
C
can be used to find the size of a file
D
All of the above

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