Introduction to Database System The primary key is selected from the: composite keys. determinants. foreign keys. candidate keys. composite keys. determinants. foreign keys. candidate keys. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An entity class is a collection of entities and is described by the structure of the entities in that class. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Data encryption techniques are particularly useful for improving data integrity None of these All of these reducing storage space requirements protecting data in data communication systems improving data integrity None of these All of these reducing storage space requirements protecting data in data communication systems ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A data dictionary doesn't provide information about: It allows a many-to-many relationship where data is located It is conceptually simple the size of the disk storage device It will be the dominant data base of the future It allows a many-to-many relationship where data is located It is conceptually simple the size of the disk storage device It will be the dominant data base of the future ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is not a relational database? Reflex FoxPro 4th Dimension dBASE IV Reflex FoxPro 4th Dimension dBASE IV ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is not an advantage of the data-base approach? increased security ability to associate related data program/data independence elimination of the data redundancy All of these increased security ability to associate related data program/data independence elimination of the data redundancy All of these ANSWER DOWNLOAD EXAMIANS APP
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