10+ Backbase Interview Questions and Answers

Optimizing slow-performing Power BI reports requires various strategies.

• Identify and remove unnecessary visuals or data

• Optimize DAX calculations and queries

• Reduce the number of visuals on a single page

• Use aggregations and summary tables for large datasets

• Consider using DirectQuery mode for real-time data

• Use query folding to push data transformation operations to the data source

Use Angular services to manage multiple APIs, create separate services for each API, and handle interdependencies using observables and RxJS operators.

• Create separate Angular services for each API to encapsulate API calls and logic.

• Use observables and RxJS operators to handle asynchronous data flow and manage interdependencies between APIs.

• Implement error handling and retry mechanisms to ensure robustness when dealing with multiple APIs.

• Consider using Angular's HttpClient mod...read more

I have used Jira for project management, Trello for product backlog, Balsamiq for wireframing, Slack for communication, and Confluence for documentation.

• Jira for project management

• Trello for product backlog

• Balsamiq for wireframing

• Slack for communication

• Confluence for documentation

RLS restricts data access based on user roles, ensuring users only see relevant data.

• RLS filters data based on user's role or attributes

• It limits access to rows in a table based on user's role

• Users can only see data that they have permission to access

Nulls in data sets are handled by filtering them out, replacing them with default values, or using functions like COALESCE.

• Filter out null values using WHERE clause in SQL queries

• Replace null values with default values using COALESCE function in SQL

• Use IFNULL function in MySQL to handle null values

• Handle null values in Power BI by using DAX functions like ISBLANK and IF

I have 5 years of experience in digital banking and engagement banking as a product owner.

• Developed and launched a mobile banking app with enhanced user experience

• Implemented AI chatbot for customer support resulting in 30% reduction in call center traffic

• Conducted market research and identified customer pain points to improve product offerings

• Collaborated with cross-functional teams to prioritize and deliver product roadmap

• Managed product backlog and ensured timely delivery ...read more

HR core operating principles and workforce metrics enhance the value proposition of the workforce by aligning HR strategies with business goals.

• HR core operating principles include fairness, transparency, compliance, and continuous improvement.

• Workforce metrics such as turnover rate, employee engagement, productivity, and diversity can help measure the effectiveness of HR strategies.

• By focusing on these principles and metrics, HR can ensure that the workforce is engaged, moti...read more

Best practices for data modelling

• Understand the business requirements before designing the data model

• Normalize data to reduce redundancy and improve data integrity

• Use surrogate keys for better performance and scalability

• Avoid complex relationships and keep the model simple and easy to understand

• Regularly review and optimize the data model for efficiency

The Map interface in Java provides a way to store key-value pairs and retrieve values based on keys.

• Different implementations of the Map interface include HashMap, TreeMap, LinkedHashMap, and ConcurrentHashMap.

• HashMap provides constant-time performance for basic operations but does not guarantee the order of elements.

• TreeMap maintains elements in sorted order based on keys.

• LinkedHashMap maintains the insertion order of elements.

• ConcurrentHashMap allows for concurrent access b...read more

The !! operator is used to convert a value to a boolean type by negating it twice.

• The !! operator is used to convert a value to a boolean type.

• It first negates the value, then negates it again to return a boolean.

• Example: !!'hello' will return true, as a non-empty string is truthy.

Spring IoC (Inversion of Control) is a design pattern where the control of object creation and lifecycle is shifted to a container or framework.

• In Spring IoC, objects are created and managed by the Spring container.

• It helps in achieving loose coupling between classes.

• Dependency Injection is a key feature of Spring IoC, where dependencies of a class are injected by the container.

• Example: @Autowired annotation in Spring is used for dependency injection.

Yes, I have 5 years of experience working in the banking domain.

• Managed projects for implementing new banking software systems

• Worked closely with stakeholders to ensure project goals aligned with business objectives

• Led a team of developers to customize banking applications for client needs

Real time application refers to software that processes data as it is received, providing instant feedback or results.

• Real time applications require low latency for immediate response

• Examples include live chat applications, stock trading platforms, and online gaming

• Data is processed and displayed instantly without delay