A company is designing a database to store large volumes of transactional data with a focus on read performance. Which database design technique might they consider to optimize data retrieval times?
- Denormalization
- Indexing
- Normalization
- Partitioning
To optimize read performance for large volumes of data, denormalization is a technique. It involves reducing the level of normalization to decrease the number of joins and improve query performance.
Which type of testing assesses the software's performance under a specific load, such as a large number of concurrent users?
- Black Box Testing
- Integration Testing
- Stress Testing
- Unit Testing
Stress testing evaluates how software performs under extreme conditions, like high user loads or resource constraints. It helps identify bottlenecks and weaknesses under stress.
What is the primary goal of the requirement gathering process in software development?
- Conduct product testing
- Define the color scheme
- Identify potential team members
- Understand and document the needs of stakeholders
The primary goal of the requirement gathering process is to understand and document the needs and expectations of stakeholders, which helps in creating a software system that meets their requirements.
The _______ phase of the SDLC involves validating the requirements to ensure they align with the project's objectives.
- Design
- Planning
- Requirements
- Testing
The Requirements phase of the SDLC involves validating the requirements to ensure they align with the project's objectives. This phase is crucial for establishing a clear project scope and ensuring that the requirements are realistic and achievable.
During _____ testing, a software application is tested with a specific expected load to evaluate its performance.
- Acceptance
- Alpha
- Beta
- Stress
During "Stress" testing, a software application is tested under a specific expected load to assess its performance under extreme conditions and to identify its breaking point.
How does the V-Model in SDLC ensure that the processes in the development and testing phases correspond with each other?
- By conducting testing before the development phase to identify issues earlier
- By defining corresponding development and testing phases in a sequential and parallel manner
- By outsourcing the testing phase to a different team
- By overlapping development and testing phases for quicker results
The V-Model ensures that development and testing processes correspond by defining corresponding development and testing phases that run in a sequential and parallel manner. It emphasizes testing requirements based on corresponding development phases, improving alignment and effectiveness.
The _______ model of SDLC combines the features of both the waterfall model and the prototype model.
- Agile
- Spiral
- V-Model
- Waterfall-Prototype
The Waterfall-Prototype model combines characteristics of the traditional Waterfall model and the iterative Prototype model. It allows for early feedback like prototyping while maintaining a structured approach like Waterfall.
The _____ SOLID principle states that classes should be open for extension but closed for modification.
- Dependency
- Liskov
- Open-Closed
- Single
The Open-Closed SOLID principle states that classes should be open for extension but closed for modification. It promotes software design that allows for new functionality to be added without altering existing code.
By creating _____ in a database, you can speed up the retrieval of rows from a database table.
- Aggregates
- Indexes
- Procedures
- Views
By creating "Indexes" in a database, you can speed up the retrieval of rows from a database table. Indexes provide a faster way to locate specific data, enhancing database query performance.
To simulate network latency and test how an application performs under stress, _____ testing is conducted.
- Load
- Penetration
- Performance
- Stress
Load testing is a type of testing that simulates network latency and tests how an application performs under stress by subjecting it to various loads. It helps determine the application's response time, scalability, and reliability under different levels of user activity, ensuring it can handle the expected workload.