Relational Algebra MCQ (Multiple Choice Questions) PDF - 170

MCQ 846: Instead of rename operation it is possible for attributes to use a

1. Positional notation
2. Nonpositional notation
3. Fixed notation
4. Logical notation

MCQ 847: Repeating information wastes

1. Integrity
2. Associations
3. Spaces
4. Indexes

MCQ 848: Every weak entity must be associated with a/an

1. Identifying entity
2. Relatable entity set
3. Strong entity set
4. Relational entity set

MCQ 849: Composition of relational-algebra operations to relational-algebra expressions is similar to composition of

1. Arithmetic operations
2. Geometric operations
3. Logarithmic operations
4. Boolean operations

MCQ 850: In the encryption process, the key that is used to encrypt data is known as

1. Encryption key
2. Private key
3. Public key
4. Asymmetric key