Database System Concepts
7th Edition
ISBN: 9781260084504
Author: Abraham Silberschatz, S. Sudarshan, Abraham, Henry Korth, Silberschatz Abraham, Silberschatz Professor
Publisher: McGraw-Hill Education
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Expert Solution & Answer
Chapter 26, Problem 1PE
Explanation of Solution
Blockchain fork:
- It generally occurs when a block is being added to the block other than the most recent one in the chain is called as blockchain fork.
- The blockchain is forked in order to change the aspect of protocol or its data structure.
- Forking will occur when a malicious activity occurs.
Explanation of Solution
Two types of block chain fork:
There are two types of block chain fork and they are:
- Soft fork
- Hard fork
Difference between them:
Soft fork occurs at the rare case and will cause major controversy but does not invalidate prior block but whereas the hard fork will do it that is in a hard fork an older version of the block chain software will remain in use and it will lead to separate block chains that holds different contents in them.
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this module is java 371. please answer all questions correctly , include all comments etc and follow all requirements.
Question 1: (40 MARKS)
E-Hailing Bicycle Management System
Case Study:An e-hailing company that rents out bicycles needs a system to manage its bicycles, users, and borrowing process. Each user can borrow up to 2 bicycles at a time, specifically for families with children 18 years or below. The system must track the bicycles (name, make, type, and availability) and users (name, ID, and borrowed bicycles).
The company also wants to ensure that the system uses a multidimensional array to store information about the bicycles.
Requirements:
Add and View Bicycles:
Borrow Bicycles:
Return Bicycles
Display Borrowed Bicycles and Search for a bicycle
Create a menu-driven program to implement the above.
Sample Output:
Add Bicycle
View All Bicycles
Borrow Bicycle
Return Bicycle
View Borrowed Bicycles
Search Bicycle
ExitEnter your choice:
Question 2…
this module is java 371. please answer all questions correctly , include all comments etc and follow all requirements.
Question 1: (40 MARKS)
E-Hailing Bicycle Management System
Case Study:An e-hailing company that rents out bicycles needs a system to manage its bicycles, users, and borrowing process. Each user can borrow up to 2 bicycles at a time, specifically for families with children 18 years or below. The system must track the bicycles (name, make, type, and availability) and users (name, ID, and borrowed bicycles).
The company also wants to ensure that the system uses a multidimensional array to store information about the bicycles.
Requirements:
Add and View Bicycles:
Borrow Bicycles:
Return Bicycles
Display Borrowed Bicycles and Search for a bicycle
Create a menu-driven program to implement the above.
Sample Output:
Add Bicycle
View All Bicycles
Borrow Bicycle
Return Bicycle
View Borrowed Bicycles
Search Bicycle
ExitEnter your choice:
Question 2…
this module is java 371. please answer all questions correctly , include all comments etc and follow all requirements.
Question 1: (40 MARKS)
E-Hailing Bicycle Management System
Case Study:An e-hailing company that rents out bicycles needs a system to manage its bicycles, users, and borrowing process. Each user can borrow up to 2 bicycles at a time, specifically for families with children 18 years or below. The system must track the bicycles (name, make, type, and availability) and users (name, ID, and borrowed bicycles).
The company also wants to ensure that the system uses a multidimensional array to store information about the bicycles.
Requirements:
Add and View Bicycles:
Borrow Bicycles:
Return Bicycles
Display Borrowed Bicycles and Search for a bicycle
Create a menu-driven program to implement the above.
Sample Output:
Add Bicycle
View All Bicycles
Borrow Bicycle
Return Bicycle
View Borrowed Bicycles
Search Bicycle
ExitEnter your choice:
Question 2…
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