Bandhan Bank Interview Questions and Answers

Offline reorg requires database to be offline, while online reorg can be done while database is still accessible.

• Offline reorg requires exclusive access to the database, while online reorg can be done concurrently with database operations.

• Offline reorg is typically faster as it doesn't have to deal with concurrent transactions, while online reorg may take longer but allows for continuous access.

• Offline reorg is usually used for larger maintenance tasks, while online reorg is ...read more

Different types of backups include full, incremental, differential, and snapshot backups.

• Full backup: backs up all data in the database

• Incremental backup: backs up only the data that has changed since the last backup

• Differential backup: backs up all data that has changed since the last full backup

• Snapshot backup: creates a point-in-time copy of the database

Polyfills for map, forEach, reduce and flatten object. React optimization and general questions.

• Polyfills are used to provide modern JavaScript features in older browsers.

• map() is used to create a new array with the results of calling a provided function on every element in the array.

• forEach() is used to execute a provided function once for each array element.

• reduce() is used to reduce the array to a single value by executing a provided function for each element.

• Flattening an...read more

Java 11 was used in the current project.

• Java 11 was chosen for its long-term support and new features.

• Migration from older versions to Java 11 was smooth due to backward compatibility.

• Java 11 introduced features like local-variable type inference and HTTP client API.

SQL is a traditional relational database system, while NoSQL is a non-relational database system.

• SQL databases are table-based and have a predefined schema, while NoSQL databases are document, key-value, wide-column, or graph-based and have dynamic schemas.

• SQL databases use structured query language for defining and manipulating the data, while NoSQL databases use different query languages for accessing data.

• SQL databases are vertically scalable, while NoSQL databases are hor...read more