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file system

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In particular unix OS each data block is of size 1024 bytes each node has 10 direct data blocks and 2-additional addresses one for single indirect block and one for double indirect block. Each block is addressed with 64 byte. The maximum possible size of file in the file system (in KB) is ?

My answer:282

answer given 256.? anyone help.

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4 4 votes

No. of addresses per disk block = 1024/64 = 16 

File size = 10*1024 + 16*1024 + 16*16*1024 = 282 KB

File size is 282 KB 

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