DATABASE DESIGN

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Test your understanding of ANSI-SPARC Architecture and Database Life Cycle (DBLC)

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MUHAMMAD AZRI

Malasia

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DATABASE DESIGN


Froggy Jumps DATABASE DESIGNVersión en línea Test your understanding of ANSI-SPARC Architecture and Database Life Cycle (DBLC) por MUHAMMAD AZRI 1 What does software-independent mean? a A system can be created or used without relying on a specific software. b It needs one exact software to operate. c It runs only on one operating system. 2 Which level shows the end-user's view of data? a Internal Level b Conceptual Level c External Level 3 Which level provides the global view of data? a External Level b Conceptual Level c Physical Level 4 The Internal Level focuses on which aspect? a Specific database model hardware b Global data structure c End-user hardware 5 Which level is described as the designer’s view? a External Level b Internal Level c Conceptual Level 6 What is an advantage of external models regarding data visibility? a It requires all teams to see all data. b It hides all user data. c It helps determine what data each user needs. 7 What is the main purpose of the ANSI-SPARC Three-Level Architecture? a Store all data in physical form only b Connect users to data without knowing physical details c Replace the computer operating system 8 The three levels of data abstraction in ANSI-SPARC are: a Internal, Conceptual, External b Logical, Physical, External c User, Designer, Hardware 9 What is the main advantage of the three-level ANSI-SPARC architecture? a Faster DBMS installation b Data Independence and Security c Reduce data size 10 In the Tiny College scenario, the Registration Department only needs access to: a STUDENT, ENROLL, CLASS, COURSE b ROOM, CLASS, PROFESSOR c STUDENT, ROOM, PAYMENT 11 The model that shows the overall organization with entities and relationships is called: a External Model b Conceptual Model c Internal Model 12 When a department only accesses part of the data it needs, this refers to: a External Schema b Physical Storage c Logical Schema 13 What is the main advantage of the External Model? a Easier to define user requirements & improve security b Controls indexing and partitioning c Provides global organizational view 14 Which concept ensures DBMS changes do not affect the conceptual model? a Physical Independence b Logical Independence c Hardware Dependence 15 How many phases are there in the Database Life Cycle (DBLC)? a 5 b 6 c 7 16 Which phase emphasizes analyzing company situation, objectives, scope & problems? a Operation b Testing & Evaluation c Database Initial Study 17 Activities like Entity-Relationship modeling & normalization are done in: a Database Design b Testing & Evaluation c Maintenance & Evolution 18 Activities like backup & recovery planning are usually done during: a Testing & Evaluation b Operation c Maintenance & Evolution 19 Adding new entities or attributes into the system occurs in which phase? a Implementation & Loading b Operation c Maintenance & Evolution 20 Which level ensures data independence between physical storage and logical structure? a Conceptual b Internal c External

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DATABASE DESIGN

Froggy Jumps

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Froggy Jumps

DATABASE DESIGNVersión en línea

por MUHAMMAD AZRI

What does software-independent mean?

Which level shows the end-user's view of data?

Which level provides the global view of data?

The Internal Level focuses on which aspect?

Which level is described as the designer’s view?

What is an advantage of external models regarding data visibility?

What is the main purpose of the ANSI-SPARC Three-Level Architecture?

The three levels of data abstraction in ANSI-SPARC are:

What is the main advantage of the three-level ANSI-SPARC architecture?

In the Tiny College scenario, the Registration Department only needs access to:

The model that shows the overall organization with entities and relationships is called:

When a department only accesses part of the data it needs, this refers to:

What is the main advantage of the External Model?

Which concept ensures DBMS changes do not affect the conceptual model?

How many phases are there in the Database Life Cycle (DBLC)?

Which phase emphasizes analyzing company situation, objectives, scope & problems?

Activities like Entity-Relationship modeling & normalization are done in:

Activities like backup & recovery planning are usually done during:

Adding new entities or attributes into the system occurs in which phase?

Which level ensures data independence between physical storage and logical structure?