ACI Worldwide Technical Consultant Interview Questions and Answers

ICE stands for Intercontinental Exchange, a global network of exchanges and clearing houses for financial and commodity markets.

• ICE operates exchanges for futures and options trading in energy, agriculture, metals, and financial markets.

• It also provides data services and technology solutions for market participants.

• Some of the well-known exchanges operated by ICE include NYSE, ICE Futures Europe, and ICE Futures US.

• ICE...read more

Implemented the Observer design pattern.

• Used to maintain consistency between related objects

• Allows for one-to-many relationships between objects

• Used in event-driven systems

• Example: Used to update UI when data changes in backend

I have implemented a microservices architecture for scalability and flexibility.

• Implemented microservices architecture using Docker and Kubernetes

• Used API Gateway for routing and load balancing

• Implemented service discovery using Consul

• Implemented circuit breaker pattern using Hystrix

• Implemented centralized logging using ELK stack

• Implemented distributed tracing using Zipkin

• Implemented event-driven architecture using Kaf...read more

I improved stored procedure performance by optimizing queries and indexes.

• Identified and removed unnecessary joins and subqueries

• Used appropriate indexing to speed up query execution

• Reduced the number of round trips to the database by using batch processing

• Rewrote complex queries to simpler ones

• Used stored procedure parameters instead of variables to avoid recompilation

• Used SET NOCOUNT ON to reduce network traffic

• Used