In database optimization, _________ refers to the process of storing frequently accessed data in a temporary storage area.
- caching
- indexing
- locking
- normalization
In database optimization, caching refers to the process of storing frequently accessed data in a temporary storage area, reducing the need to fetch it from the original source repeatedly.
_________ in JDBC helps in reusing the same connection for multiple database operations.
- CallableStatement
- Connection Pooling
- PreparedStatement
- ResultSet
Connection Pooling in JDBC helps in reusing the same connection for multiple database operations, enhancing efficiency and reducing the overhead of opening and closing connections repeatedly.
An ORM framework's ability to automatically generate SQL queries from object-oriented code is known as _________.
- Auto-Generating
- Caching
- Lazy Loading
- Mapping
The ability of an ORM framework to automatically generate SQL queries from object-oriented code is known as Auto-Generating, streamlining the process of interacting with databases using object-oriented code.
A developer is optimizing an application that frequently queries a large database. What strategies should be considered?
- Caching, Database Indexing, Query Optimization, Load Balancing
- Data Sharding, Denormalization, Connection Pooling, Logging
- Partitioning, Asynchronous Processing, Compression, Replication
- Stored Procedures, Vertical Scaling, Horizontal Scaling, Normalization
Strategies such as caching, database indexing, query optimization, and load balancing can be effective in optimizing an application that frequently queries a large database.
Which interface must be implemented by a servlet for asynchronous processing?
- AsyncListener
- AsyncProcessor
- Asynchronous
- Callable
A servlet must implement the Async interface to support asynchronous processing. This interface provides methods for starting and completing asynchronous tasks.
What is the purpose of the AsyncContext in asynchronous servlets?
- To manage asynchronous operations
- To manage request attributes
- To manage servlet configuration
- To manage session attributes
The purpose of the AsyncContext in asynchronous servlets is to manage asynchronous operations, providing methods for starting and completing asynchronous tasks.
What method is used to complete the asynchronous process and send a response?
- complete()
- finalize()
- finish()
- sendResponse()
The complete() method is used to complete the asynchronous process and send a response in asynchronous servlets.
How can a servlet determine if an incoming request supports asynchronous processing?
- canAsyncProcess()
- isAsyncRequest()
- isAsyncSupported()
- supportsAsync()
The isAsyncSupported() method is used by a servlet to determine if an incoming request supports asynchronous processing.
How does asynchronous processing in servlets improve server resource utilization?
- Increases server load
- Increases thread blocking
- No impact on thread blocking
- Reduces thread blocking
Asynchronous processing reduces thread blocking, allowing the server to handle more requests without waiting for each to complete, thus improving resource utilization.
What is the role of the AsyncListener in the servlet's asynchronous mode?
- Controlling servlet initialization
- Handling asynchronous errors
- Initiating asynchronous tasks
- Monitoring asynchronous operations
The AsyncListener plays a role in monitoring asynchronous operations, allowing developers to respond to events such as the start and completion of asynchronous tasks or handling errors in asynchronous processing.