DynPro Interview Questions and Answers

Amazon Redshift recently introduced features like RA3 instances and materialized views for improved performance and cost efficiency.

• RA3 Instances: Allow for separate scaling of compute and storage, optimizing costs.

• Materialized Views: Improve query performance by storing precomputed results.

• Concurrency Scaling: Automatically adds capacity to handle spikes in query loads.

• Data Sharing: Enables real-time data sharing...read more

AWS S3 offers various storage classes to optimize cost and performance based on data access patterns.

• S3 Standard: High durability and availability for frequently accessed data.

• S3 Intelligent-Tiering: Automatically moves data between two access tiers when access patterns change.

• S3 Standard-IA: Lower-cost option for infrequently accessed data with rapid access needs.

• S3 One Zone-IA: Lower-cost option for infrequently...read more

Calculate salary ranks using SQL to determine employee standings based on their salaries.

• Use the RANK() function to assign ranks based on salary: SELECT name, salary, RANK() OVER (ORDER BY salary DESC) AS rank FROM employees;

• Handle ties with DENSE_RANK() to avoid gaps in ranking: SELECT name, salary, DENSE_RANK() OVER (ORDER BY salary DESC) AS rank FROM employees;

• Use PARTITION BY to rank within specific groups, e....read more

My notice period is typically two weeks, allowing for a smooth transition and knowledge transfer.

• Standard notice period is two weeks for most companies.

• In some cases, I can negotiate a shorter notice if needed.

• For example, if I am in a critical project, I can discuss a phased handover.

• I believe in leaving my current role on good terms, ensuring all responsibilities are covered.

The process for Software Development Engineer involves planning, designing, coding, testing, and deploying software solutions.

• Gather requirements from stakeholders

• Create a design based on requirements

• Write code to implement the design

• Test the software for bugs and issues

• Deploy the software for users to use

• Iterate on feedback and make improvements

XML is a markup language while JSON is a lightweight data interchange format.

• XML uses tags to define elements while JSON uses key-value pairs.

• XML is more verbose and complex than JSON.

• JSON is easier to read and parse than XML.

• XML supports namespaces and validation while JSON does not.

• XML is widely used in web services and document exchange while JSON is preferred for data exchange between applications.

Django follows Model-View-Controller (MVC) architectural pattern.

• Django has a high-level architecture that follows the Model-View-Controller (MVC) architectural pattern.

• The Model layer represents the database schema and business logic.

• The View layer is responsible for rendering the templates and presenting the data to the user.

• The Controller layer handles the user's input and interacts with the Model and View laye...read more

Severity is based on impact on system functionality, priority is based on business needs.

• Severity is determined by the impact of the defect on the system functionality

• Priority is determined by the business needs and urgency of the defect

• Defects with high severity and high priority should be fixed first

• Severity levels can be categorized as critical, major, minor, and cosmetic

• Priority levels can be categorized as hi...read more