Recent Final Term Papers MCQ’s CS403 – Database Management Systems Solved by Abdul Fahd MCS-3 rd ~ Momie MCS-4 th ~ Saif BSCS-4 th 1. Which of the following is true about NOT NULL constraint? Enforce domain integrity. Limit the values that can be placed in a column. Prevents any actions that would destroy links between tables with the corresponding data values (correct) Enforces the uniqueness of the values in a set of columns. 2. Which of the following constraints enforces Referential Integrity? FOREIGN KEY CHECK PRIMARY KEY SECONDARY KEY (correct) //Referential integrity > Secondary key 3. An Entity is defined when the database is physically constructed in DBMS a specific type such as an integer, text, date, logical etc...
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