Suppose we have Marketing, Accounts and HR departments and all these departments are connected locally that is they are in one local area network. Now we want that HR department users can not directly access data of Accounts and Marketing departments and similary Marketing department user can not directly access HR and Accounts departments data. So in this case what will be the simple and feasible solution and also write the names and role of the hardware devices use in the solution.

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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Question 4:
a. Suppose we have Marketing, Accounts and HR departments and all these departments are connected
locally that is they are in one local area network. Now we want that HR department users can not
directly access data of Accounts and Marketing departments and similary Marketing department user
can not directly access HR and Accounts departments data. So in this case what will be the simple and
feasible solution and also write the names and role of the hardware devices use in the solution.
b. Why Cyclic Redundancy Check (CRC) technique is used in the world of networking? Also show the
CRC calculation process at the sender end and the verification process at the receiver end for the given
data “10111010 by using Generator Ploynomial X+X3+1.
Transcribed Image Text:Question 4: a. Suppose we have Marketing, Accounts and HR departments and all these departments are connected locally that is they are in one local area network. Now we want that HR department users can not directly access data of Accounts and Marketing departments and similary Marketing department user can not directly access HR and Accounts departments data. So in this case what will be the simple and feasible solution and also write the names and role of the hardware devices use in the solution. b. Why Cyclic Redundancy Check (CRC) technique is used in the world of networking? Also show the CRC calculation process at the sender end and the verification process at the receiver end for the given data “10111010 by using Generator Ploynomial X+X3+1.
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