In …………… independence, any changes made in the table format do not change the data residing on the disc.

1. Physical
2. Logical
3. Network
4. None of these

Pool of values from where a column draws its value is called …………… .

1. Table
2. Attribute
3. Data set
4. Domain

Records are also known as …………… and fields are also known as …………… .

1. Horizontal Data, Vertical Data
2. Attribute, Tuple
3. Tuple, Attribute
4. Column, Row

Which of the following are valid field names of the table: Employee?

1. empid, ename, esalary
2. empid, ename, stu_name
3. stu_Id, ename, esalary
4. stu_Id, ename, stu_name