Choose the MOST correct match from the list of terms and descriptions.V000000mini disksUser & O/S respectivelyvolumeRAID setstrueTWXrenamefalse102.3.4.5.8.9.All file types are supported by most O/S.The name and identifier fields are used astags to a recognize a file by10.Databases use a hierarchical index file.6. bit used to designate a sub directorypartitions of the of the hard diskentity containing a file systemOwner, group, & universe utilizebit used to designate a filebits.multiple file copies in different locationsThe following sequence of key operations isthe same as:Create new file> Read old file >Write tonew file Delete old file

As per the given question, we need to choose the MOST correct match from the list of terms and…

Choose the MOST correct match from the list of terms and descriptions. 000000000 mini disks User & O/S respectively volume RAID sets true TWX rename false 1 2. 3. 4. 5. 6. 7. 8. 9. 10. All file types are supported by most O/S. The name and identifier fields are used as tags to a recognize a file by Databases use a hierarchical index file. partitions of the of the hard disk entity containing a file system bit used to designate a sub directory Owner, group, & universe utilize bit used to designate a file bits. multiple file copies in different locations The following sequence of key operations is the same as: Create new file> Read old file >Write to new file> Delete old file

Choose the MOST correct match from the list of terms and descriptions. 000000000 mini disks User & O/S respectively volume RAID sets true TWX rename false 1 2. 3. 4. 5. 6. 7. 8. 9. 10. All file types are supported by most O/S. The name and identifier fields are used as tags to a recognize a file by Databases use a hierarchical index file. partitions of the of the hard disk entity containing a file system bit used to designate a sub directory Owner, group, & universe utilize bit used to designate a file bits. multiple file copies in different locations The following sequence of key operations is the same as: Create new file> Read old file >Write to new file> Delete old file

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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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 specification for a typical disk storage system is shown in Table P18.1. An employee file consisting of 100,000 records is stored on the disk. The employee record structure and the size of the fields in bytes (shown in brackets) are given below: Employee Employee Designation Address Basic number name pay (6) (10) (30) (6) (20) External Sorting 217 Allowances Deductions Number of platters Number of cylinders Number of tracks (surfaces)/cylinder Number of sectors/track Number of bytes/sector Maximum seek time Average seek time Maximum Latency time Average latency time Time to read/write a sector (20) 6 800 10 50 512 50 ms 25 ms 16.66 ms 8.33 ms 0.33 ms Table P18.1. Specifications of a typical disk storage system Total salary (20) (6) a) What is the storage space (in terms of bytes) needed to store the employee file in the disk? b) What is the storage space (in terms of cylinders) needed to store the employee file in the disk?
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What is the purpose of try-catch blocks in programming, and how do they contribute to robust file handling?
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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 specification for a typical disk storage system is shown in Table P18.1. An employee file consisting of 100,000 records is stored on the disk. The employee record structure and the size of the fields in bytes (shown in brackets) are given below: Employee Employee number name (6) (20) Designation Address (10) (30) Basic pay (6) Number of platters Number of cylinders Allowances Deductions (20) Number of tracks (surfaces)/cylinder Number of sectors/track Number of bytes/sector Maximum seek time Average seek time Maximum Latency time Average latency time Time to read/write a sector 6 800 10 50 512 50 ms 25 ms 16.66 ms 8.33 ms 0.33 ms (20) Total salary (6) a) What is the storage space (in terms of bytes) needed to store the employee file in the disk? b) What is the storage space (in terms of cylinders) needed to store the employee file in the disk?
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 is