Type of non-contiguous storage linking: STORAGE LEVEL
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- With linked allocation, each file is a linked list of disk blocks; the disk blocks may be scattered anywhereon the disk. The directory contains a pointer to the first and last blocks of the file. Each block contains a pointerto the next block. Refer to the illustration below. Need help to fill in the codes in void main() --- #include<stdio.h>#include<stdlib.h>#define TOTAL_DISK_BLOCKS 32#define TOTAL_DISK_INODES 8int blockStatus[TOTAL_DISK_BLOCKS]; // free = 0int blockList[TOTAL_DISK_BLOCKS - TOTAL_DISK_INODES]; // list of blocks of a filestruct file_table {char fileName[20];int fileSize;struct block *sb;};struct file_table fileTable[TOTAL_DISK_BLOCKS - TOTAL_DISK_INODES];struct block {int blockNumber;struct block *next;};int AllocateBlocks(int Size) {---}void main(){int i = 0, j = 0, numFiles = 0, nextBlock= 0, ret = 1;char s[20]; struct block *temp;---for(i = 0; i < numFiles; i++) {---ret = AllocateBlocks(fileTable[i].fileSize);---}---//Seed the pseudo-random number…1:34 b a 2. Different operating systems use different file allocation techniques to store files in the secondary storage device such as HDD. One of the techniques is "Linked allocation". In this technique, each file is divided into several data blocks of same size. Each data block has a link to its next block like a singly linked list. So, the data blocks are scattered on the disk. The directory contains a pointer to the starting and the ending data block of a file. The diagram below depicts a sample linked allocation system of a file Abc.txt: Directory entry File Start End Abc.txt 100 900 Data 900 Data Data block 1 block 2 Data block 3 block N Write a Java program to implement the linked allocation of a given text file Assgn1_2.txt (uploaded with the assignment) who's each block will contain maximum 50 characters. Read the content of the given file and store it in data blocks (maximum 50 characters per block). Now show a menu that will ask the user to i) add new content at the end of…the state and variable display must be:Unsorted Partition Reference Index: 0, Traversing Index: 7, Current Traversing Index Value: mango, Next Index Value: plum, Swapping Condition: FalseCurrent Array: ['apple', 'avocado', 'orange', 'banana', 'strawberry', 'pineapple', 'plum', 'mango'] The input:["apple", "avocado", "orange", "banana", "strawberry", "pineapple", "plum", "mango"]Note:The sorted partition is on the left side. Then, the order is increasing based on the number of vowels of a string.the output must be like this:['plum', 'apple', 'strawberry', 'mango', 'orange', 'banana', 'avocado', 'pineapple'] ------- What is the 3rd item of the unsorted partition when there are already 2 items in sorted partition and after the 3rd traversal?
- A sorted file has the following details: Number of records = 13,10,720; record length = 200 bytes; size of the primary key field = 13 bytes; size of block pointer = 7 bytes; block size = 2048 bytes. For this file, we need to build a multi-level index on the primary key. The number of blocks in the first level index file isDoes the accumulation of entries in a file cause it to cluster?Instructions Your job is to write a program to encrypt outgoing messages and decrypt incoming messages using a Vigenere Cypher. In this assignment, you will parse a string of words from a file into tokens using the strtok_s command with pointers and then use the Vigenere Cypher algorithm to encrypt and decrypt the parsed words. Before you can perform any encryption/decryption activities, the first step is to read in messages from a file and parse the messages into individual words. The Program: Setting up classes and understanding tokenization The first step in encrypting/decrypting messages is to parse the messages into words before applying the encryption/decryption algorithms to them. This parsing process is called “tokenization.” Read the contents of a file into this array using the getline command. The objective of this assignment is to demonstrate the use of pointers in a program utilizing c-strings and tokenization. The use of pointers is foundational in C++. This…
- 79. The type of allocation in which blocks of file are allocated to consecutive blocks of disks is classified as a. indexed allocation b. header allocation c. contiguous allocation d. linked allocationIn a contiguous allocation, if the file has n blocks long and starts at location b, the starting and last blocks being occupied by the file is ___ respectively. a. b and b + n - 1 b. n and b + n + 2 c. b and b + n d. n and n + b -1C++ We want to build an address book that is capable of storing name, address & phone number ofa person. Address book provides functionality in the form of a menu. The feature list includes: • Add – to add a new person record• Delete – to delete an existing person record by name• Search – to search a person record by name .. Sort - to sort the file after adding a new person record. · Exit – to exit from application
- 5. Assume a file system is using combined indexing scheme to keep track of the blocks allocated to a file, as in Linux/Unix file system. In the inode of a file, there are 12 direct pointers, one single-indirect pointer, one double-indirect pointer, and one triple-indirect pointer. Assume the size of a disk block address (i.e., disk pointer size) is 8 bytes. Assume block size is 4 KB. a) What is the maximum file size? b) How many index blocks are required for files of size 30 KB, 256KB, 15 MB, 512 MB, 32 GB? c) Assume nothing is cached (no disk caching applied in the system) and we know the disk location of the inode of a file of size 1 GB. How many disk accesses are required to access a byte at offset 2^14 (16K) in the file? How many disk accesses are required to access a byte at offset 2^26 in the file?in the FILE structure : What two fields we used to determine the size of the internal buffer allocated : Group of answer choices read_ptr and write_ptr base and end pointer flags and fileio all of the abovePOWERSHELL TASK Try to swap two strings/names in a file and the file name should be a command-line argument.
