Introduction to Database System Which type of entity cannot exist in the database unless another type of entity also exists in the database, but does not require that the identifier of that other entity be included as part of its own identifier? Strong entity Weak entity ID-dependent entity ID- independent entity Strong entity Weak entity ID-dependent entity ID- independent entity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In which of the following is a single-entity instance of one type related to many entity instances of another type? One-to-Many Relationship Many-to-Many Relationship One-to-One Relationship Composite Relationship One-to-Many Relationship Many-to-Many Relationship One-to-One Relationship Composite Relationship ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A maximum cardinality is the maximum number of entity instances that can participate in a relationship instance. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System If attribute A determines both attributes B and C, then it is also true that: A → B → C → (B,C) → A → B → C → (B,C) → ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which two files are used during operation of the DBMS? query language and utilities data dictionary and transaction log None of the listed here data dictionary and query language query language and utilities data dictionary and transaction log None of the listed here data dictionary and query language ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System When the values in one or more attributes being used as a foreign key must exist in another set of one or more attributes in another table, we have created a(n): normal form. referential integrity constraint. insertion anomaly. transitive dependency. normal form. referential integrity constraint. insertion anomaly. transitive dependency. ANSWER DOWNLOAD EXAMIANS APP
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