Introduction to Database System Which of the following is NOT a basic element of all versions of the E-R model? Entities Primary keys Relationships Attributes Entities Primary keys Relationships Attributes ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Entities can be associated with one another in which of the following? Identifiers Attributes Relationships Entities Identifiers Attributes Relationships Entities ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A relation is a two-dimensional table. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A race condition occurs when two users of the DBMS are interacting with different files at the same time Two concurrent activities interact to cause a processing error None of the listed here Both of the listed here two users of the DBMS are interacting with different files at the same time Two concurrent activities interact to cause a processing error None of the listed here Both of the listed here ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The model for a _____ resembles the hierarchical model in many respects. Relational database Hierarchical database Distributed database Network database None of these Relational database Hierarchical database Distributed database Network database None of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is not a logical data-base structure? relational network tree chain relational network tree chain ANSWER DOWNLOAD EXAMIANS APP
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