In role-based access control (RBAC), permissions are assigned to ____________ rather than individual users.

  • Roles
  • Groups
  • Users
  • Profiles
In RBAC systems, permissions are associated with roles rather than individual users. This approach simplifies access management by assigning permissions to predefined roles, and users are then assigned to those roles. Hence, the correct option is "Roles."

Which of the following is NOT a common access control method used in database systems?

  • Attribute-based access control
  • Discretionary access control
  • Role-based access control
  • Single sign-on
Single sign-on (SSO) is not typically considered a common access control method used in database systems. Instead, SSO is more commonly associated with authentication systems that allow users to access multiple applications or systems with a single set of credentials, rather than directly controlling access to database resources.

Which testing technique ensures that ETL processes can handle large volumes of data efficiently?

  • Performance Testing
  • Regression Testing
  • Stress Testing
  • Volume Testing
Volume Testing ensures that ETL processes can handle large volumes of data efficiently by testing the system's ability to manage and process a significant amount of data. This helps in identifying bottlenecks and scalability issues before deployment.

In performance testing, what is the purpose of stress testing?

  • To assess database scalability
  • To evaluate system behavior under heavy loads
  • To identify memory leaks
  • To measure response time for typical transactions
Stress testing is used in performance testing to evaluate system behavior under heavy loads. It involves subjecting the system to extreme conditions beyond its normal operational capacity to determine its robustness and ability to handle stress. By simulating high user concurrency, stress testing helps identify performance bottlenecks, weaknesses, and potential failure points in the system.

Which database system feature can help improve query performance by storing precomputed results?

  • Cursors
  • Materialized Views
  • Stored Procedures
  • Triggers
Materialized Views are database objects that store the results of a query as a physical table. They contain precomputed results based on the underlying query, which can help improve query performance by reducing the need to recompute the results every time the query is executed. Materialized Views are especially useful for queries that involve complex calculations or aggregations, as they allow the system to retrieve the results directly from the stored data without having to recompute them from scratch.

Which type of data consistency issue involves duplicate records with slight variations in data values?

  • Data corruption
  • Data duplication
  • Data fragmentation
  • Data normalization
The type of data consistency issue involving duplicate records with slight variations in data values is known as data duplication. This can occur due to various reasons such as human error, system bugs, or improper data entry processes.

Test ____________ is an essential component of effective test reporting, as it helps identify areas for improvement in the testing process.

  • Analysis,
  • Evaluation,
  • Review,
  • Inspection,
The correct option is "Evaluation". Test evaluation is crucial for effective test reporting as it helps in assessing the overall testing process and identifying areas for improvement. Through evaluation, testers can determine the effectiveness of their testing strategies, identify weaknesses, and make necessary adjustments to enhance the testing process.

Which best practice involves documenting test cases and test data comprehensively?

  • Requirement analysis
  • Test case management
  • Test data generation
  • Test execution
Documenting test cases and test data comprehensively is a best practice in database testing. It involves creating detailed documentation of the test cases to be executed and the corresponding test data to be used. This helps ensure that testing is thorough and systematic, facilitating efficient test execution and defect tracking.

Which testing technique is used to evaluate the performance of a database under heavy loads?

  • Boundary Testing
  • Regression Testing
  • Stress Testing
  • Unit Testing
Stress Testing evaluates the performance of a system under extreme conditions, such as heavy loads, to ensure its stability and reliability. In database testing, stress testing helps identify performance bottlenecks and assesses how well the database handles large volumes of data and concurrent user requests.

Which factors should you consider when selecting a test data generation tool for your database testing project?

  • Cost-effectiveness
  • Ease of integration with existing tools
  • Speed of data generation
  • Support for multiple database platforms
When selecting a test data generation tool for a database testing project, it's crucial to consider factors such as ease of integration with existing tools to ensure seamless workflow, cost-effectiveness to stay within budget constraints, support for multiple database platforms to cater to diverse testing needs, and the speed of data generation to optimize testing efficiency. These factors collectively contribute to the effectiveness and efficiency of the testing process.