Introduction to Database System Data encryption techniques are particularly useful for improving data integrity None of these reducing storage space requirements All of these protecting data in data communication systems improving data integrity None of these reducing storage space requirements All of these protecting data in data communication systems ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An on-line commercial site such as Amazon.com is an example of a(n) ________ . data mining database application e-commerce database application single-user database application multiuser database application data mining database application e-commerce database application single-user database application multiuser database application ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A good query system allows non-programmers to access information stored in a database can accept English language commands None of these can be accessed only by data processing professionals both (a) and (b) allows non-programmers to access information stored in a database can accept English language commands None of these can be accessed only by data processing professionals both (a) and (b) ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A _____ means that one record in a particular record type may be related to more than one record of another record type. Many-to-one relationship One-to-many relationship One-to-one relationship Many-to many relationship Many-to-one relationship One-to-many relationship One-to-one relationship Many-to many relationship ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Entity instances are associated by relationship classes. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The distinguishable parts of a record are called None of these database files data fields None of these database files data fields ANSWER DOWNLOAD EXAMIANS APP
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