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ISQS Delgadillo Exam 3 TTU Questions and Correct Answers the Latest Update and Recommended Version $11.49
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ISQS Delgadillo Exam 3 TTU Questions and Correct Answers the Latest Update and Recommended Version
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Data Resource Management → -when you use technology to mange data. Database Administrator (DBA) → -Responsible for managing the data, work with programmers and systems analyst to design and implement database. → -Also work with users and managers of the firm to establish policies for ma...

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  • October 19, 2024
  • 18
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • isqs delgadillo exam 3 ttu questions and correct

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2 0 2 4 /2025 | © copyright | This work may not be copied for profit gain Excel!


ISQS Delgadillo Exam 3 TTU Questions
and Correct Answers the Latest Update
and Recommended Version
Data Resource Management


→ -when you use technology to mange data.


Database Administrator (DBA)

→ -Responsible for managing the data, work with programmers and systems analyst to
design and implement database.
→ -Also work with users and managers of the firm to establish policies for managing.


Why is there a demand for more and better data?

→ -competitive environment.
→ -powerful workstations that can handle data quickly.
→ -more computer literate personnel.


Equivalent of DBMS : Office

→ Database: file cabinet
→ File: file drawer
→ Record: file folder
→ Record Attributes: Report


Hierarchy of data




1|Page| GradeA+ | 2 0 0 2 5

,2 0 2 4 /2025 | © copyright | This work may not be copied for profit gain Excel!

→ -Database
→ -Files
→ -Records
→ -Attributes
→ -Characters
→ -Bits


Database


→ -Integrated collection of logically related data elements.
→ -Personnel File, Payroll File, Department File


File

→ -(e.g. personnel file)
→ ◦ 098-40-1370 Clooney, George 1-20-2010
→ ◦ 594-39-3948 Kidman, Nicole 3-24-2009
→ ◦ 234-34-3483 Hanks, Tom 2-02-2009
→ ◦ 457-74-3854 Winslet, Kate 1-23-2009


Record

→ -(Record containing SSN, Last and
→ First name, Hire date)
→ -594-41-3955 Bullock, Sandra 4-24-07


Attribute


→ -(last name)
→ ◦ Bullock
→ -Characters (bytes)
→ ◦ 01100010 (Letter "B" in Binary Code)




1|Page| GradeA+ | 2 0 0 2 5

, 2 0 2 4 /2025 | © copyright | This work may not be copied for profit gain Excel!

Bits

→ - 0 or 1


flat file

→ -A table storing all database information in one large two-dimensional table.


Traditional approach disadvantages


→ - you have to change your address at every place where everyone has their own file
on you.
→ -Data are stored, organized and processed in independent files
→ -Data duplication- everyone has your address.
→ -Lack of integration- its impossible to combine two different databases or files.
→ -data dependence- when you change files you have to change program.


Database approach


→ -when you need to change an address now just change it on raider link. Its from one
central location.
→ -files are consolidated into a common pool of records available to many different
application programs.
→ -requires the use of a database management system.


advantages of database approach

→ -minimal data redundancy (data duplication minimized)
→ data integration
→ -program-data independence (no data dependence)


hierarchal model




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