Continuous integration aims to integrate code changes into the shared repository ____________.
- After every commit
- Daily
- Every hour
- Weekly
Continuous integration aims to integrate code changes into the shared repository after every commit. This ensures that any changes made to the codebase are quickly integrated, helping to identify and resolve integration issues early in the development process.
You are conducting security testing on a database application. You discover that the application is vulnerable to SQL injection attacks. What should be the immediate action to mitigate this vulnerability?
- Escaping Special Characters
- Implementing Encryption
- Input Validation
- Use of Prepared Statements
Use of Prepared Statements
Which type of testing focuses on finding errors in the database schema and data consistency?
- Functional testing
- Performance testing
- Security testing
- Structural testing
Structural testing in database testing focuses on finding errors in the database schema and ensuring data consistency. It involves examining the structure of the database, including tables, columns, relationships, and constraints, to identify issues such as missing or incorrect data types, keys, or constraints.
In the context of CI/CD (Continuous Integration/Continuous Delivery), when should database tests be executed?
- After each database change or migration
- At the beginning of the development cycle
- At the end of the development cycle
- Only during scheduled testing phases
Database tests should be executed after each database change or migration in a CI/CD pipeline. This ensures that any modifications made to the database are immediately validated, preventing integration issues and maintaining the stability of the system throughout the development process.
You are testing a database system used for an e-commerce platform. Customers have reported that their order history sometimes displays incorrect information, such as duplicate orders. Which type of testing would be most suitable to identify and resolve this data consistency issue?
- Data Consistency Testing
- Integration Testing
- Performance Testing
- Unit Testing
Data Consistency Testing involves verifying the integrity, accuracy, and consistency of data in the database. It checks for anomalies such as duplicate records, missing data, or inconsistent values, making it suitable for identifying and resolving issues like duplicate orders in the order history.
Scenario: You are testing the scalability of a popular e-commerce website during a sale event. The website experiences a sudden surge in traffic, and the response time degrades significantly. Which type of scalability testing should you have conducted to prevent this issue?
- Load Testing
- Performance Testing
- Spike Testing
- Stress Testing
Spike Testing is a type of scalability testing that evaluates how a system handles sudden spikes or surges in traffic. Unlike gradual increases in load, spike testing specifically focuses on abrupt changes, simulating real-world scenarios such as flash sales or breaking news events. Conducting spike testing helps identify potential bottlenecks and weaknesses in the system under extreme conditions, allowing for better preparedness and optimization before such events occur.
What is the primary purpose of database test scripting?
- Automating test execution
- Generating test data
- Identifying bugs
- Validating data integrity
In database testing, the primary purpose of test scripting is to automate the execution of tests. Test scripts are written to perform specific actions on the database and verify the expected outcomes. Automating tests helps in improving efficiency, reducing human errors, and ensuring consistency in testing processes.
SQL ____________ is a technique that prevents SQL injection attacks by escaping special characters.
- Normalization
- Parameterization
- Sanitization
- Validation
Parameterization involves using parameterized queries to separate SQL code from user input. This technique helps prevent SQL injection attacks by automatically escaping special characters.
SQL injection attacks can lead to unauthorized ____________ access in a database.
- Administrator
- Data
- System
- User
SQL injection attacks can lead to unauthorized user access in a database. Attackers exploit vulnerabilities in input validation to inject malicious SQL code into an application's SQL statements, which can allow them to gain unauthorized access as regular users.
During database table testing, you find that certain columns lack appropriate indexing, resulting in slow query performance. How would you optimize the database tables to improve query performance?
- Add Indexes; Identify frequently queried columns and apply appropriate indexes
- Denormalize Tables; Combine related tables to reduce query complexity
- Increase RAM; Allocate more memory resources to the database server
- Optimize Queries; Rewrite SQL queries to improve efficiency
Inefficient query performance due to lack of appropriate indexing can be addressed by identifying frequently queried columns and adding appropriate indexes to them. This optimization technique helps the database engine locate and retrieve data more efficiently, resulting in improved query performance.