Podcast
Questions and Answers
Which normal form requires that there are no transitive dependencies?
Which normal form requires that there are no transitive dependencies?
- Boyce-Codd normal form (BCNF)
- Second normal form (2NF)
- Third normal form (3NF) (correct)
- First normal form (1NF)
What is the purpose of a dependency diagram?
What is the purpose of a dependency diagram?
- To depict all relationships among table's attributes (correct)
- To eliminate multi-valued attributes
- To identify all dependencies
- To identify the primary key
In the unnormalized dataset, why is it not in 1NF?
In the unnormalized dataset, why is it not in 1NF?
- Because it has composite keys
- Because it has transitive dependencies
- Because it has repeating groups
- Because it has multi-valued attributes (correct)
What is the attribute known as when it fully functionally depends on a composite key?
What is the attribute known as when it fully functionally depends on a composite key?
Which of the following best describes normalization in the database design process?
Which of the following best describes normalization in the database design process?
Which normal form assigns attributes to tables based on determination?
Which normal form assigns attributes to tables based on determination?
Denormalization results in increased performance and greater data redundancy.
Denormalization results in increased performance and greater data redundancy.
Which of the following is NOT one of the normal forms mentioned in the text?
Which of the following is NOT one of the normal forms mentioned in the text?
Which attribute represents the number of hours an employee worked on a specific project?
Which attribute represents the number of hours an employee worked on a specific project?
What does the CHG_HOUR attribute represent?
What does the CHG_HOUR attribute represent?
What is the purpose of normalization in database design?
What is the purpose of normalization in database design?
What is a surrogate key?
What is a surrogate key?
Which term describes a functional dependence in which an attribute depends on only part of the primary key?
Which term describes a functional dependence in which an attribute depends on only part of the primary key?
In the 'Students' table, what attribute is fully functionally dependent on 'StudentID'?
In the 'Students' table, what attribute is fully functionally dependent on 'StudentID'?
In the 'Students' table, what attribute is partially dependent on 'StudentID'?
In the 'Students' table, what attribute is partially dependent on 'StudentID'?
What term describes a functional dependence among nonprime attributes?
What term describes a functional dependence among nonprime attributes?
In the 'Students' table, what attribute is indirectly dependent on 'StudentID' through 'MajorName'?
In the 'Students' table, what attribute is indirectly dependent on 'StudentID' through 'MajorName'?
Which normal form describes a tabular format in which all key attributes are defined, there are no multi-valued attributes, and all attributes are dependent on the primary key?
Which normal form describes a tabular format in which all key attributes are defined, there are no multi-valued attributes, and all attributes are dependent on the primary key?
What is the purpose of converting a table from First Normal Form (1NF) to Second Normal Form (2NF)?
What is the purpose of converting a table from First Normal Form (1NF) to Second Normal Form (2NF)?
In Second Normal Form (2NF), what type of dependencies should be eliminated by creating new tables?
In Second Normal Form (2NF), what type of dependencies should be eliminated by creating new tables?
What is the purpose of converting a table from Second Normal Form (2NF) to Third Normal Form (3NF)?
What is the purpose of converting a table from Second Normal Form (2NF) to Third Normal Form (3NF)?
Which of the following statements is true about the normalization process?
Which of the following statements is true about the normalization process?
What is the objective of the normalization process?
What is the objective of the normalization process?
In the first example given, why is 'EmployeeName' not fully functionally dependent on 'EmployeeID'?
In the first example given, why is 'EmployeeName' not fully functionally dependent on 'EmployeeID'?
In the second example given, why is 'EmployeeName' fully functionally dependent on 'EmployeeID'?
In the second example given, why is 'EmployeeName' fully functionally dependent on 'EmployeeID'?
According to the data-modeling checklist, what should attribute names be?
According to the data-modeling checklist, what should attribute names be?
According to the data-modeling checklist, what should entity names be?
According to the data-modeling checklist, what should entity names be?
According to the data-modeling checklist, what should relationship names be?
According to the data-modeling checklist, what should relationship names be?
According to the data-modeling checklist, what should entities represent?
According to the data-modeling checklist, what should entities represent?
According to the data-modeling checklist, what should be clearly defined for each entity?
According to the data-modeling checklist, what should be clearly defined for each entity?
According to the data-modeling checklist, what should be included in the naming conventions for entity names?
According to the data-modeling checklist, what should be included in the naming conventions for entity names?
According to the data-modeling checklist, what should attribute names be?
According to the data-modeling checklist, what should attribute names be?
According to the data-modeling checklist, what should entity names be?
According to the data-modeling checklist, what should entity names be?
According to the data-modeling checklist, what should relationship names be?
According to the data-modeling checklist, what should relationship names be?
What should be clearly defined for each entity according to the data-modeling checklist?
What should be clearly defined for each entity according to the data-modeling checklist?
According to the data-modeling checklist, what should entities represent?
According to the data-modeling checklist, what should entities represent?
What should attribute names use as a prefix according to the data-modeling checklist?
What should attribute names use as a prefix according to the data-modeling checklist?
What should not be contained in attribute names according to the data-modeling checklist?
What should not be contained in attribute names according to the data-modeling checklist?
What should be unique within the model according to the data-modeling checklist?
What should be unique within the model according to the data-modeling checklist?
What should not be a reserved word according to the data-modeling checklist?
What should not be a reserved word according to the data-modeling checklist?
What should document abbreviations, synonyms, and aliases for each entity according to the data-modeling checklist?
What should document abbreviations, synonyms, and aliases for each entity according to the data-modeling checklist?
ما هي الخطوة التالية بعد تحديد التخطيط المطلوب من القائمة؟
ما هي الخطوة التالية بعد تحديد التخطيط المطلوب من القائمة؟
ما هو الرمز الذي يجب النقر عليه لتغيير عدد الشاشات؟
ما هو الرمز الذي يجب النقر عليه لتغيير عدد الشاشات؟
كم عدد الكاميرات المعروضة على الشاشة عند عرض كاميرا واحدة؟
كم عدد الكاميرات المعروضة على الشاشة عند عرض كاميرا واحدة؟
ما هو الرمز الذي يجب النقر عليه لتحديد عدد نوافذ العرض؟
ما هو الرمز الذي يجب النقر عليه لتحديد عدد نوافذ العرض؟
كم عدد الكاميرات المعروضة على الشاشة عند عرض 6 كاميرات؟
كم عدد الكاميرات المعروضة على الشاشة عند عرض 6 كاميرات؟
ما هو التصنيف الذي يستخدم لهذا النظام؟
ما هو التصنيف الذي يستخدم لهذا النظام؟
ما هو الهدف من تدريب مشغلي ومشرفي غرفة التحكم وأنظمة المرئية؟
ما هو الهدف من تدريب مشغلي ومشرفي غرفة التحكم وأنظمة المرئية؟
