Database Systems Certification MCQs – Practice Test 19 (Chapter 20)

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Free "Relational Database Design Quiz" App (iOS & Android) with MCQ: A legal instance of a database is one where all the relation instances are; with answers: domain instance, legal instance, associated instance, and participant instance. Study Indexing in DBMS Quiz Questions, download Google Book (Free Chapter) for DBMS online tutorials.

Relational Database Design Quiz – Practice Test 19 PDF Download

MCQ 91: A legal instance of a database is one where all the relation instances are:

Legal instance
Domain instance
Associated instance
Participant instance

MCQ 92: In the encryption process, a parameter of the algorithm is called:

Modulation key
Encryption key
Asymmetric key
Symmetric-key

MCQ 93: A collection of rules to find functional dependences, is called Armstrong's axioms, which includes reflexivity, augmentation rule and:

Transitivity rule
Composition rule
Pseudo rule
Axioms rule

MCQ 94: A more complex approach for web service implementation, is referred to as:

JavaScript Object Notation
Representation State Transfer
JavaScript Entity Notation
Big Web Services

MCQ 95: Mapping in the Hibernate system, each Java class to one or more relations is specified in a:

Workflow file
Mapping file
Business-logic file
View-access file

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