7. there are 35 blocks on a disk. Given the information below, show the storagelocation ofthe files if the contiguous allocation method is used.Nama failFile NameABCDFile Allocation TableBlok mulaStart Block05Shade the blocks involved and label the start block for each file.10152025301611162142812212712PanjangLength4172163813491418 1922 23 2426 27 28 2931 32 33 34

Name: 7. there are 35 blocks on a disk. Given the information below, show t
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Description: 7. there are 35 blocks on a disk. Given the information below, show the storagelocation ofthe files if the contiguous allocation method is used.Nama failFile NameABCDFile Allocation TableBlok mulaStart Block05Shade the blocks involved and label the

- We need to see for the contiguous memory allocation here.

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Computer Science

7. there are 35 blocks on a disk. Given the information below, show the storagelocation of the files if the contiguous allocation method is used. Nama fail File Name A B C D File Allocation Table Blok mula Start Block 0 Shade the blocks involved and label the start block for each file. 5 10 15 20 25 1 6 16 21 4 28 12 21 11 12 26 2 7 Panjang Length 4 2 1 6 3 13 17 18 30 31 32 4 9 14 19 22 23 24 27 28 29 33 34

7. there are 35 blocks on a disk. Given the information below, show the storagelocation of the files if the contiguous allocation method is used. Nama fail File Name A B C D File Allocation Table Blok mula Start Block 0 Shade the blocks involved and label the start block for each file. 5 10 15 20 25 1 6 16 21 4 28 12 21 11 12 26 2 7 Panjang Length 4 2 1 6 3 13 17 18 30 31 32 4 9 14 19 22 23 24 27 28 29 33 34

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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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 allocation
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…
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…
The figure below shows the allocation for file jeep. directory file start end 25 jeep 120130140150 16 1170180190 20021O220230 24O25126O270 28O29O300310 Linked Linear O Indexed O Contiguous
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?
Program in Java: topic: insertion sort The state and variable display: Unsorted Partition Reference Index: 7, Traversing Index: 1, Current Traversing Index Value: avocado, Condition Value Index: 0 Current Condition Value: apple, Swapping Condition: FalseCurrent Array: ['apple', 'avocado', 'orange', 'banana', 'strawberry', 'pineapple', 'plum', 'mango'] The Input must be:["apple", "avocado", "orange", "banana", "strawberry", "pineapple", "plum", "mango"]The assumptions and conditions: Sorted partition is on the right side.The order is increasing alphabetically but the strings that has an odd length should be the first to be sorted then the strings with the even length goes next The result or Output must be:['apple', 'avocado', 'mango', 'pineapple', 'banana', 'orange', 'plum', 'strawberry']
Q1. One of the major tasks of operating system is to maintain the recently accessed files. There are many algorithms are available to keep the index of the file in a sequence they are accessed, out of which the most common is Last In First Out algorithm. If you are asked to write program to implement that which data structure would you prefer? Why?
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Assume that a file contains an integer sequence: 18, 17, 1, 2, 3, 4, 16, 15, 14, 13, 5, 6, 7, 8, 9, 10, 12, 11 and the buffer (in main memory) is of size 5 blocks with each being able to hold 2 integers. Sort this file using the external sorting algorithm. Trace the computation process.
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?
Given the following declarations, write an assembly program segment that prompts the user to enter a 6-character secret word and an encryption key (a digit from I to 9). Then encrypt the secret word entered by adding the encryption key value to each of the character in the secret word and show the result of the encryption.