Disk File Records Notes Questions with Answers PDF Download – Test 107

MCQ 531: In high level programs, the command which sets the pointer of file to the beginning of that file is classified as:

1. modify command
2. open command
3. locate command
4. reset command

MCQ 532: In unary relational operations, the symbol π is used to represent the operation called:

1. OR operation
2. AND operation
3. TABLE operation
4. PROJECT operation

MCQ 533: The number of entity types participating in the E-R diagrams is represented by:

1. structure of relationship
2. instance of relationship
3. degree of relationship
4. role of relationship

MCQ 534: The search value which is present on each node in search tree diagram of order 'p' is as:

1. p - 1
2. p - 2
3. p + 1
4. p + 2

MCQ 535: The system used by database administrators to specify restrictions of accounts and creation of new accounts is classified as:

1. controlled redundancy subsystem
2. program dependence subsystem
3. security and authorization subsystem
4. program independence subsystem