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Database Systems MCQs – Mock Test 170

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Free Relational Algebra Study App Download (iOS & Android): Instead of rename operation it is possible for attributes to use a; MCQ with answers: nonpositional notation, positional notation, logical notation, and fixed notation. Practice Formal Relational Query Languages Questions and Answers, Google Book to download free chapter for DBMS online curriculum.

Relational Algebra MCQs – Mock Test 170 PDF Download

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

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