recategorized by
4,244 views
0 votes
0 votes

__________ maintains the list of free disk blocks in the Unix file system.

  1. I-node
  2. Boot block
  3. Super block
  4. File allocation table 
recategorized by

2 Answers

0 votes
0 votes

Super block maintains the list of free disk blocks in the Unix file system. The super block contains an array of free disk block numbers, one of which points to the next entry in the list. That entry in turn will be a data block, which contains an array of some other free blocks and a next pointer. When process requests for a block, it searches the free block list returns the available disk block from the array of free blocks in the super block. If the super block contains only one entry which is a pointer to a data block, which contains a list of other free blocks, all the entries from that block will be copied to the super block free list and returns that block to the process.

Hence,Option(C)Super Block.

Answer:

Related questions

1 votes
1 votes
2 answers
1
makhdoom ghaya asked Jul 11, 2016
3,376 views
The output generated by the LINUX command :$ seq 1 2 10will be 1 2 101 2 3 4 5 6 7 8 9 101 3 5 7 91 5 10
0 votes
0 votes
1 answer
2
makhdoom ghaya asked Jul 10, 2016
1,562 views
Match the following with reference to Unix shell scripts $:$$\begin{array}{clcl} & \textbf{List – I} & & \textbf{List – II} \\ \text{a.} & \text{\$?} & \text{i.} & ...
0 votes
0 votes
3 answers
4
makhdoom ghaya asked Jul 9, 2016
7,535 views
Consider a program that consists of $8$ pages (from $0$ to $7$) and we have $4$ page frames in the physical memory for the pages. The page reference string is :$1\; 2\; 3...