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All questions of Managing Data for Class 8 Exam
What term describes individuals who illegally access or modify database systems?- a)Hackers
- b)Hawkers
- c)Hikers
- d)Analysts
Correct answer is option 'A'. Can you explain this answer?
What term describes individuals who illegally access or modify database systems?
a)
Hackers
b)
Hawkers
c)
Hikers
d)
Analysts
 | Shruti Das answered |
Understanding Hackers
Hackers are individuals who exploit computer systems and networks, often with the intent to access or modify data illegally. Here’s a breakdown of why "hackers" is the correct term for individuals who engage in unauthorized activities related to database systems.
Types of Hackers
- Black Hat Hackers: These are the malicious hackers who break into systems for personal gain, such as stealing data or installing malware.
- White Hat Hackers: Also known as ethical hackers, these individuals use their skills to improve security systems by identifying vulnerabilities, often with permission.
- Grey Hat Hackers: These hackers may violate laws or ethical standards but do not have malicious intent. They sometimes inform organizations of vulnerabilities without permission.
Illegal Activities
- Hackers may access databases to steal sensitive information, such as personal identification, credit card data, or proprietary business data.
- They can modify database entries, leading to data corruption or misinformation, which can have devastating effects on businesses and individuals.
Consequences of Hacking
- Legal Repercussions: Engaging in hacking activities can lead to severe legal consequences, including fines and imprisonment.
- Security Breaches: Organizations suffer from financial losses, reputational damage, and loss of customer trust due to hacking incidents.
Conclusion
In summary, the term "hackers" refers to individuals who illegally access or modify database systems, encompassing a range of motivations and methods. Understanding the different types of hackers and the implications of their actions is crucial in today’s digital world.
Hackers are individuals who exploit computer systems and networks, often with the intent to access or modify data illegally. Here’s a breakdown of why "hackers" is the correct term for individuals who engage in unauthorized activities related to database systems.
Types of Hackers
- Black Hat Hackers: These are the malicious hackers who break into systems for personal gain, such as stealing data or installing malware.
- White Hat Hackers: Also known as ethical hackers, these individuals use their skills to improve security systems by identifying vulnerabilities, often with permission.
- Grey Hat Hackers: These hackers may violate laws or ethical standards but do not have malicious intent. They sometimes inform organizations of vulnerabilities without permission.
Illegal Activities
- Hackers may access databases to steal sensitive information, such as personal identification, credit card data, or proprietary business data.
- They can modify database entries, leading to data corruption or misinformation, which can have devastating effects on businesses and individuals.
Consequences of Hacking
- Legal Repercussions: Engaging in hacking activities can lead to severe legal consequences, including fines and imprisonment.
- Security Breaches: Organizations suffer from financial losses, reputational damage, and loss of customer trust due to hacking incidents.
Conclusion
In summary, the term "hackers" refers to individuals who illegally access or modify database systems, encompassing a range of motivations and methods. Understanding the different types of hackers and the implications of their actions is crucial in today’s digital world.
Printed output from a database is called a .......- a)result
- b)response
- c)report
- d)retort
Correct answer is option 'C'. Can you explain this answer?
a)
result
b)
response
c)
report
d)
retort
 | EduRev Class 8 answered |
It can be easier to read printed data than looking directly at the database fields
What is the primary function of a spreadsheet software like Microsoft Excel?- a)Creating presentations
- b)Managing databases
- c)Performing calculations and analysis
- d)Writing documents
Correct answer is option 'C'. Can you explain this answer?
What is the primary function of a spreadsheet software like Microsoft Excel?
a)
Creating presentations
b)
Managing databases
c)
Performing calculations and analysis
d)
Writing documents
| | EduRev Class 8 answered |
Spreadsheet software like Microsoft Excel is primarily used for organizing data in rows and columns, performing calculations, creating charts, and analyzing data through formulas and functions.
In database management, what does the term "query" refer to?- a)A calculation performed on data in a spreadsheet
- b)A search or request for specific data from a database
- c)A function to format data in a table
- d)A tool to create graphical representations of data
Correct answer is option 'B'. Can you explain this answer?
In database management, what does the term "query" refer to?
a)
A calculation performed on data in a spreadsheet
b)
A search or request for specific data from a database
c)
A function to format data in a table
d)
A tool to create graphical representations of data
 | Trisha Vashisht answered |
In database management, a query is a request for specific data or information from a database. It is used to retrieve, filter, and manipulate data based on specified criteria or conditions.
Making copies of data in case of a data loss is called .......- a)getting your back up
- b)making a back-up
- c)making a stuff up
- d)putting your feet up
Correct answer is option 'B'. Can you explain this answer?
a)
getting your back up
b)
making a back-up
c)
making a stuff up
d)
putting your feet up
| | EduRev Class 8 answered |
Frequently changing stored data needs frequent back-ups. The longer that you leave it between back-ups, the more data you could lose if you had a disaster like the computer breaking down
Which is most suitable for use as a flat file database?- a)Graphics editor
- b)Spreadsheet
- c)Web browser
- d)Word processor
Correct answer is option 'B'. Can you explain this answer?
a)
Graphics editor
b)
Spreadsheet
c)
Web browser
d)
Word processor
| | Trisha Vashisht answered |
Flat file databases are best used where the amount of data is not too large
What is meant by a 'flat file' database?- a)It is a database split into several separate data files
- b)It is a database using a single table for all records
- c)It is a database without any records
- d)It is a relational database which has been squashed
Correct answer is option 'B'. Can you explain this answer?
a)
It is a database split into several separate data files
b)
It is a database using a single table for all records
c)
It is a database without any records
d)
It is a relational database which has been squashed
| | Trisha Vashisht answered |
Often saved as a CSV (comma separated variable) text file
Which of these is not a good way of protecting data?- a)Storing it on a CD-ROM and copying to magnetic tape
- b)Storing it on one flash drive and copying to a second
- c)Storing it on a hard disc alone
- d)Storing it on a hard disc and copying to a flash drive
Correct answer is option 'C'. Can you explain this answer?
a)
Storing it on a CD-ROM and copying to magnetic tape
b)
Storing it on one flash drive and copying to a second
c)
Storing it on a hard disc alone
d)
Storing it on a hard disc and copying to a flash drive
| | EduRev Class 8 answered |
Not making a second copy of valuable data is a serious error
Which software application is typically used for storing, organizing, and manipulating structured data?- a)Microsoft Word
- b)Microsoft Excel
- c)Microsoft PowerPoint
- d)Microsoft Access
Correct answer is option 'D'. Can you explain this answer?
Which software application is typically used for storing, organizing, and manipulating structured data?
a)
Microsoft Word
b)
Microsoft Excel
c)
Microsoft PowerPoint
d)
Microsoft Access
| | EduRev Class 8 answered |
Microsoft Access is a database management system (DBMS) used for storing, organizing, and managing structured data. It allows users to create and maintain databases, run queries, and generate reports based on the data stored.
Data can be very valuable so needs storing on .......- a)flash drives
- b)hard discs
- c)DVD or CD-ROM
- d)any of the above
Correct answer is option 'D'. Can you explain this answer?
a)
flash drives
b)
hard discs
c)
DVD or CD-ROM
d)
any of the above
| | Trisha Vashisht answered |
Whatever seems most suitable in the circumstances
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