Data Base Management System Short Questions

we are IT's

Q#1 What are the types of tasks that are carried out during Data Mining?

•Data Description task:
 
 Concrete information gleaned from large amount of known data. Data you may not 

have known, but which is supported by recorded facts or given patterns .

Knowledge Prediction task:

From users known data it forecast future trends, events, etc.(e.g: Stock market predictions)  

Q#2 What is the effect of data mining on business?

    Q#3 what is the Government role in protecting your digital information ?

Ans:
           Corporation  compromise is needed to resolve the growing tension between security and privacy. Many Cyber laws are introduced to secure your digital online information but still its not enough.Because Grovt. is not pay head to Ethical Hacking and White hat hackers.

Q#4 How has technology affected your personal Privacy?

Ans:

Technology has a number of social and ethical implications that cause debate and concern. One specific issue is privacy. Information Technology has opened us society and described privacy.
For More Click Here
Q#5 Should low enforcement have “back door” access to encrypted data if it helps to solves crimes?
Ans::
        Yes low enforcement should  have “back door” access to encrypted data . It May can helps to solves crimes And find clues about crimnals . But it should be in safe hands otherwise it can use for negaitve pupouses like Hacking etc.. 
                                                                 OR

This is concern to US law enforcement and security forces who say the produces of  highly encrypted Communication devices must make available to them. They Argue they need access to private emails, social media messages  and other electronic communication. 

Q# 6 What is Difference Between Knowledge Prediction and Knowledge Description in D.M?

•Knowledge Prediction -

                                         Data mining uses known data for prediction/forecasting. It is also known as                                               predictive data.

          •Knowledge Description -
                                                   Concrete information gleaned from data is known as data description.It is  also                                                     known as descriptive data. 

Q# 7 Jot down the sources of data mining?

1.                 Data Base
2.                 Text Documents
3.                 Pictures(images)
4.                 Web. 
5.                 Hard Drive
6.                 CD/DVD             etc.....

Q#8 Differentiate between Data privacy and Data Security?

 

Data security
                                   is commonly referred to as the confidentiality, availability, and integrity of data. In other words, it is all of the practices and processes that are in place to ensure data isn't being used or accessed by unauthorized individuals or parties.  
Data privacy 
                           is suitably defined as the appropriate use of data. When companies and merchants use data or information that is provided or entrusted to them, the data should be used according to the agreed purposes .

Q#9 What steps do/should you take to protect your data?

The following steps may help you to protect your data.

1.   Back up early and often
2.   Use file-level and share-level security.
3.   Password-protect document.
4.   Use EFS(encrypting file explorer system) encryption.
5.   Use disk encryption
6.   Make use of a public key infrastructure.
7.   Hide data with stenography.
8.   Protect data in transit with IP security.
9.   Secure wireless transmissions.
10.  Use rights management to retain control   Etc....

  
Q# 10 What do you know About data warehousing?
Ans..
          Data warehousing is the process of constructing and using a data warehouse. A data warehouse is constructed by integrating data from multiple heterogeneous sources that support analytical reporting, structured and/or ad HOC queries, and decision making.
                                                                 OR
A data warehouse is a subject-oriented, integrated, time-variant and non-volatile collection of data in support of management's decision making process. Subject-Oriented: A data warehouse can be used to analyze a particular subject area.

Q#_11 What are advantages of Data Mining?

Ans::
          Following are some important advantages....

• Rapid computerization of businesses produce huge amount of data
• How to make best use of data?
• A growing realization: knowledge discovered from data can be used for competitive advantage.
• Make use of your data assets
• There is a big gap from stored data to knowledge; and the transition won’t occur automatically.
• Many interesting things you want to find cannot be found using database queries

“find me people likely to buy my products”

“Who are likely to respond to my promotion”

 Q#12 What alternative methods could showdown used  to make their respective points about government  surveillance?

Ans::

By exposing  the secrets of the government they claim to have related its systematic disregard for individual freedom and privacy. Theirs are not the politics of left against right or literals conversations or democrats against republicans.