I just need help with question 3 & 4 Discussion 2Suppose a mobile operating system (OS) wants to conduct an analysis onthe frequency of occurrence of a new crying emoji in text messages. TheOS sends as response whether on a given day, any of the text messagesincluded the new crying emoji. They apply the decentralized differentialprivacy mechanism, where noise is added to the response on the mobilephone, before it is being sent to the server.1. What could potentially be inferred about an individual if the actualresponse for that person would be revealed?2. Suppose the mobile OS sends this information from your mobilephone daily. Would this increase the privacy risk, and how?3. In the observed responses 30% of the texts have reportedly used theemoji. What would be the actual number if the procedure outlined inthe previous paragraph was used, where in 75% of the cases the trueanswer is provided?4. What is the risk if the actual answer is recorded in 99% instead of 75%of the cases?

Answered: 3. In the observed responses 30% of the…

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 just need help with question 3 & 4

Discussion 2
Suppose a mobile operating system (OS) wants to conduct an analysis on
the frequency of occurrence of a new crying emoji in text messages. The
OS sends as response whether on a given day, any of the text messages
included the new crying emoji. They apply the decentralized differential
privacy mechanism, where noise is added to the response on the mobile
phone, before it is being sent to the server.
1. What could potentially be inferred about an individual if the actual
response for that person would be revealed?
2. Suppose the mobile OS sends this information from your mobile
phone daily. Would this increase the privacy risk, and how?
3. In the observed responses 30% of the texts have reportedly used the
emoji. What would be the actual number if the procedure outlined in
the previous paragraph was used, where in 75% of the cases the true
answer is provided?
4. What is the risk if the actual answer is recorded in 99% instead of 75%
of the cases?

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Operating System:

An operating system is the most important type of system software in any computer system, which is responsible for running application software and acts as an interface between the user and the hardware. It manages the input/output operations of the hardware, configures and maintains peripheral devices such as printers and scanners, and provides an environment for running applications. It also provides services such as memory management, multitasking, scheduling, networking, security, and data management. Operating systems also provide a user interface, which allows users to interact with the system and access their programs, files, and other resources.

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