Scenario: You are working with a healthcare database that contains sensitive patient information. The organization's compliance requirements mandate strong data encryption. Which encryption method should you implement to ensure the highest level of security for this database?
- Advanced Encryption Standard (AES)
- Data Encryption Standard (DES)
- Rivest Cipher 6 (RC6)
- Triple Data Encryption Standard (3DES)
AES
In the context of large data sets, what does the term "data partitioning" refer to?
- Deleting unnecessary data
- Dividing the data into smaller, manageable chunks distributed across multiple nodes
- Encrypting the data to ensure security
- Storing data in a single, centralized location
Data partitioning involves dividing the data into smaller, manageable chunks distributed across multiple nodes in a distributed system. This allows for parallel processing and efficient utilization of resources, enabling better performance and scalability when dealing with large data sets.
Indexes improve query performance by allowing the database system to quickly locate ____________ in large datasets.
- Data
- Entries
- Records
- Rows
Indexes improve query performance by allowing the database system to quickly locate records in large datasets. By creating indexes on columns frequently used in search conditions, the database can efficiently retrieve relevant data without scanning the entire table, resulting in faster query execution.
Stress testing evaluates a database's performance beyond its ____________ capacity to identify failure points.
- Dynamic
- Elastic
- Flexible
- Scalability
Stress testing evaluates a database's performance beyond its scalability capacity to identify failure points. It involves pushing the system to its limits or beyond to determine how it behaves under extreme conditions, such as high concurrent user loads or large data volumes. Identifying failure points helps in optimizing the system for better performance and reliability.
A ____________ is a sudden and significant increase in the number of users or system activity.
- Burst
- Jump
- Spike
- Surge
A spike represents a sudden and significant increase in system activity or users accessing the system. It helps in evaluating how the system handles unexpected surges in workload and whether it can scale effectively.
What is the primary goal of database security?
- Enhancing database performance
- Ensuring high availability
- Protecting data integrity
- Securing data confidentiality
The primary goal of database security is to secure data confidentiality, ensuring that only authorized users can access sensitive information and preventing unauthorized access.
What role does test automation play in adhering to best practices in database testing?
- Database administration
- Improved efficiency and reliability
- Manual testing
- Test planning
Test automation plays a crucial role in adhering to best practices in database testing by improving efficiency and reliability. Automated testing tools allow for the execution of repetitive and complex tests with greater speed and accuracy compared to manual testing methods. By automating database tests, teams can reduce the time and effort required for testing activities, enhance test coverage, and detect defects early in the development lifecycle. Additionally, test automation facilitates continuous testing practices, enabling faster feedback loops and supporting agile and DevOps methodologies. Overall, leveraging test automation helps teams achieve higher levels of productivity, consistency, and quality in their database testing efforts.
When testing a database schema, what is the role of normalization?
- Ensuring data is stored efficiently
- Ensuring data is stored in a single table
- Ensuring data is stored redundantly
- Ensuring data is stored with minimal redundancy and in an organized manner
Normalization in database testing ensures that data is stored efficiently by reducing redundancy and organizing it logically. This helps in maintaining data integrity and improves query performance. Normalization involves breaking down larger tables into smaller ones and establishing relationships between them to minimize redundancy and dependency.
In the database testing process, test ____________ are executed to ensure the database functions as expected.
- Test Cases
- Test Plans
- Test Scenarios
- Test Scripts
Test scenarios are executed in the database testing process to ensure that the database functions as expected under various conditions and scenarios.
To compare data between the source and target systems, testers use SQL ____________.
- Joins
- Procedures
- Queries
- Triggers
SQL queries are commonly used by testers to compare data between source and target systems during database testing. These queries retrieve data from both systems and enable testers to perform comparisons, identify discrepancies, and validate the accuracy and completeness of data migration or transformation processes. SQL queries provide a powerful means for testers to verify the integrity and consistency of data across different systems.