Database _______ is the process of ensuring that data in a database remains accurate and consistent over time.
- Maintenance
- Normalization
- Optimization
- Security
Database maintenance is the process of ensuring that data in a database remains accurate and consistent over time. It involves tasks such as backups, performance monitoring, and data integrity checks.
In AWS, _______ is a service for scalable storage in the cloud.
- Amazon S3
- EC2
- Elastic Beanstalk
- Lambda
In AWS, Amazon S3 (Simple Storage Service) is a scalable storage service in the cloud. It allows users to store and retrieve any amount of data at any time. S3 is commonly used for backup, archiving, content distribution, and data storage for web applications.
What is the purpose of containerization in software development?
- All of the above
- Isolation
- Portability
- Standardization
Containerization in software development serves multiple purposes, including isolation of applications, standardization of deployment environments, and enhancing portability. Containers encapsulate applications and dependencies, making them consistent across various environments and easing the deployment process.
Which design pattern is used to define a family of algorithms, encapsulate each algorithm, and make them interchangeable?
- Command
- Decorator
- Observer
- Strategy
The Strategy design pattern is used to define a family of algorithms, encapsulate each algorithm, and make them interchangeable. It allows the client to choose the appropriate algorithm at runtime.