Consider the following Assertion (A) and the Reason (R) - Assertion (A) : "In object-oriented databases, persistent objects can survive after program termination and can be retrieved in future sessions". Reason (R) : Persistent objects are stored in volatile memory for faster access and cease to exist when program ends. Which of the following is correct?

Asked in Analyst Cum Programmer (Deputy Director) 2024 · Topic: Basics of Computers and Information Technology (Database Management Systems (DBMS) Basics: Concepts, Types of Databases)

1. (A) is false but (R) is true
2. (A) is true and (R) is true
3. (A) is true but (R) is false
4. (A) is false and (R) is false

More Information and Communication Technology questions

• Which property ensures that a transaction is either fully executed or not performed at all? - Question not attempted
• In ER diagrams, a 'weak entity' is characterized by which of the following? - Question not attempted
• What is the primary goal of BCNF in database normalization? - Question not attempted
• Which SQL query retrieves all employees whose address contains the substring ‘AJMER’ from EMPLOYEE table? - SELECT * FROM EMPLOYEE WHERE Address = ‘AJMER’; - SELECT * FROM EMPLOYEE WHERE Address LIKE ‘%AJMER’; - SELECT * FROM EMPLOYEE LIKE Address = ‘AJMER’; - SE‐ LECT * FROM EMPLOYEE WHERE Address LIKE ‘AJMER’;
• Suppose we have two relations: R(A, B, C) and S(B, C, D). Consider the natural join operation: R ⋈ S Which of the following could be the resulting schema of this operation?
• Which relational algebra expression selects all employees from the emp table whose salary is greater than 40000 and who work in the Delhi location?
• What is the primary purpose of the embedded SQL?
• Which statement best describes the goal of data abstraction in a DBMS?

All 1,360 Information and Communication Technology questions →