Data Analyst Technical Interview Questions

Mohammedsiraj A. - " Here is the breakdown of the information in those images: \\1. The Amharic Letter (Financial Request)\** This is a formal letter from the \Dawa Zone Muslim Affairs Council\\ addressed to the \\Commercial Bank of Ethiopia (CBE)\. \Date:\\ 30/6/2018 (Ethiopian Calendar) \\Subject:\\ Opening a savings account. \\Purpose:\\ The letter requests the opening of a savings account for \\Nuur Mosque\**, located in Bale Zone, Dawa City. \Authorized Signatories:\\"See full answer

Kusheta K. - "In one of my projects, l analyzed customer purchase data for a retail company to under why sales were decrease"See full answer

Yashasvi V. - "WITH RECURSIVE fibonacci_series AS ( SELECT 1 AS n, 0 AS fib1, 1 AS fib2 UNION ALL SELECT n + 1 AS n, fib2 AS fib1, fib1 + fib2 AS fib2 FROM fibonacci_series WHERE n < 20 -- Limit the series to 20 numbers ) SELECT n, fib1 AS fib FROM fibonacci_series ORDER BY n; `"See full answer

Ankit kumar S. - " logo Contact Interview Preparation Application Process Career Advancement Onboarding and Orientation Common Interview Questions Dashboard Creation Interview Questions and Answers Dashboard Creation Interview Questions and Answers What is a dashboard? Answer: A dashboard is a visual representation of key performance indicators (KPIs) and other important data, designed to provide a high-level overview of a specific area or business process. It typically uses charts, graphs, and other da"See full answer

Kusheta K. - "After cleaning and organizing the data the dataset become retable and ready for analysis. This helped the tame make accurate decision based on clean data"See full answer

Aishwarya J. - "Simplify a technical concept for a business user :- Explain the technical concept by concentrating on the impact of the methodologies implemented , stress on the value addition [Data Inflow/ Outflow Diagrams ] Simplify a business concept to a technical user :- Explain a business concept to a technical user by expanding on the tools and technologies used for highlighting the results in a certain report / dashboard/ data transformation method employed to achieve Feature documentation along with"See full answer

Ali H. - "SQL databases are relational, NoSQL databases are non-relational. SQL databases use structured query language and have a predefined schema. NoSQL databases have dynamic schemas for unstructured data. SQL databases are vertically scalable, while NoSQL databases are horizontally scalable."See full answer

Kusheta K. - "“I once worked with a dataset that had missing and inconsistent tracking. I first evaluated data quality, cleaned what was reliable, and documented assumptions. Then I collaborated with engineers to implement improved event tracking. This ensured more accurate analysis in the future and improved decision-making.”"See full answer

Aaron W. - "Clarification questions What is the purpose of connecting the DB? Do we expect high-volumes of traffic to hit the DB Do we have scalability or reliability concerns? Format Code -> DB Code -> Cache -> DB API -> Cache -> DB - APIs are built for a purpose and have a specified protocol (GET, POST, DELETE) to speak to the DB. APIs can also use a contract to retrieve information from a DB much faster than code. Load balanced APIs -> Cache -> DB **Aut"See full answer