View of Data Quiz PDF: Questions and Answers - 51

MCQ 251: The structure of the database is known as

1. Data Binding
2. Data organization
3. Data models
4. Data schemas

MCQ 252: In terms of its effect on application programs, the most important schema is

1. Virtual Schema
2. Logical schema
3. Physical Schema
4. Subschemas

MCQ 253: SQL statements that must end the transaction are of type

1. 2 types
2. 3 types
3. 4 types
4. 5 types

MCQ 254: A logical unit of disks consisting of a fixed number of consecutive sectors is known to be

1. Segment
2. Cluster
3. Block
4. Compound

MCQ 255: For performance calculations of an efficient database system, the main metrics is/are of type(s)

1. 1 type
2. 2 types
3. 3 types
4. 4 types