Illustrate the different types of users in a database environment and the distinct purpose of each?(Java/Python)

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
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i need the solutions for those questions. the deadline is tomorrow 

  • Database systems are exposed to many attacks, including dictionary attack, show with implantation how dictionary attack is launched?(Java or Python)

 

  • Files is one of the components of an operating system security, show with example how file permission in Unix operating system provide layer of security?

 

  • Illustrate with examples the importance of documentation of user administration, what are the best practices for administrators and managers?

 

  • Illustrate the different types of users in a database environment and the distinct purpose of each?(Java/Python)

 

  • Hash encryption algorithms are widely used to secure password, implement one of the Hash function algorithms, and show with example the pros of the hash function?
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