Match List-I with List-II:List-I List-II (A) f.seek(-10,1) (I) From beginning of file, move 10 bytes forward (B) f.seek(10,1) (II) From current position, move 10 bytes backward (C) f.seek(10) (III) From current position, move 10 bytes forward (D) f.seek(-10,2) (IV) From end of the file, move 10 bytes backward
| List-I | List-II |
| (A) f.seek(-10,1) | (I) From beginning of file, move 10 bytes forward |
| (B) f.seek(10,1) | (II) From current position, move 10 bytes backward |
| (C) f.seek(10) | (III) From current position, move 10 bytes forward |
| (D) f.seek(-10,2) | (IV) From end of the file, move 10 bytes backward |
- (A) - (I), (B) - (II), (C) - (III), (D) - (IV)
- (A) - (II), (B) - (III), (C) - (IV), (D) - (I)
- (A) - (III), (B) - (II), (C) - (IV), (D) - (I)
- (A) - (II), (B) - (III), (C) - (I), (D) - (IV)
The Correct Option is D
Approach Solution - 1
Solution: The task involves matching function calls related to file seeking with their respective descriptions. In Python, the seek() method is used with a file object to change the file's current position. The method signature is f.seek(offset, whence) where offset is the number of bytes to move and whence determines the reference position.
- whence=0: Move the pointer from the beginning of the file. This is the default. (e.g.,
f.seek(10)) - whence=1: Move the pointer from the current file position. (e.g.,
f.seek(10,1)orf.seek(-10,1)) - whence=2: Move the pointer from the end of the file. (e.g.,
f.seek(-10,2))
Now, match the statements to their meanings:
| (A) f.seek(-10,1) | (II) From current position, move 10 bytes backward |
| (B) f.seek(10,1) | (III) From current position, move 10 bytes forward |
| (C) f.seek(10) | (I) From beginning of file, move 10 bytes forward |
| (D) f.seek(-10,2) | (IV) From end of the file, move 10 bytes backward |
Therefore, the correct match is: (A) - (II), (B) - (III), (C) - (I), (D) - (IV)
Approach Solution -2
| Code | Interpretation | Correct Match |
|---|---|---|
f.seek(-10,1) | From current position, move 10 bytes backward | (II) |
f.seek(10,1) | From current position, move 10 bytes forward | (III) |
f.seek(10) | From beginning of file (default), move 10 bytes forward | (I) |
f.seek(-10,2) | From end of file, move 10 bytes backward | (IV) |
Correct Matching:
- (A) - (II)
- (B) - (III)
- (C) - (I)
- (D) - (IV)
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