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DecisionTree Analytics & Services Data Analyst Intern Interview Questions and Answers
DecisionTree Analytics & Services Data Analyst Intern Interview Experiences
1 interview found
I appeared for an interview in Nov 2024.
It was a completely logical aptitude test.
(1 Question)
- Q1. What are different types of Joins
- Ans.
Different types of joins in SQL include inner join, left join, right join, and full outer join.
Inner join: Returns rows when there is a match in both tables.
Left join: Returns all rows from the left table and the matched rows from the right table.
Right join: Returns all rows from the right table and the matched rows from the left table.
Full outer join: Returns rows when there is a match in either table.
Skills evaluated in this interview
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I applied via Naukri.com and was interviewed in Dec 2020. There was 1 interview round.
Interview Questionnaire
1 Question
- Q1. What is Company payroll Process
- Ans.
Company payroll process is the system used to manage employee compensation and benefits.
Payroll process includes calculating employee salaries, taxes, and deductions
It also involves managing employee benefits such as health insurance and retirement plans
Payroll process can be done in-house or outsourced to a third-party provider
It is important to ensure compliance with labor laws and regulations
Payroll process can be a
Interview Preparation Tips
I applied via Walk-in and was interviewed before Apr 2020. There were 4 interview rounds.
Interview Questionnaire
1 Question
- Q1. Special situations, pregnancy scenario's and other general pv guidelines
Interview Preparation Tips
I applied via Walk-in and was interviewed before Aug 2021. There were 2 interview rounds.
(1 Question)
- Q1. How to transpose data set
- Ans.
Transposing a data set involves flipping rows and columns.
Identify the data set to be transposed
Create a new table with the columns and rows flipped
Copy the data from the original table to the new table
Transpose can be done using Excel, Python, R, SQL, etc.
Example: Transposing a table of sales data to have products as rows and months as columns
Interview Preparation Tips
Data Analyst Interview Questions & Answers
Virtusa Consulting Services
Anonymous
posted on 7 Aug 2021
I applied via Naukri.com and was interviewed before Aug 2020. There was 1 interview round.
Interview Questionnaire
1 Question
- Q1. I interviewed here for Fidelity, so bith technical rounds were conducted by Fidelity associates. They asked me deeper as well as common questions from Power Bi and SQL query writing.
Interview Preparation Tips
I applied via Walk-in and was interviewed before Apr 2021. There were 4 interview rounds.
There were atleast 200 Aaplicants in which there separation of groups into 30 applicants and names were called out and have to say more that 4 to 5 lines on any topic u want to talk about as extempore.
There were quest as pharmacology, pharmaceutics, reasoning knowledge, mathematics, English section.
(1 Question)
- Q1. The questions were asked on Pharma knowledge with subjective knowledge
(1 Question)
- Q1. Question were asked regarding my expectations my working flexibility ets
Interview Preparation Tips
- Pharmacovigilance
- Clinical Trials
- ICH - GCP Guidelines
- Pharmacology
- Pharmaceutics
- Current Profile
- Basic
I applied via Walk-in and was interviewed in Apr 2021. There were 4 interview rounds.
Interview Questionnaire
1 Question
- Q1. What is c++.
- Ans.
C++ is a high-level programming language used for developing system software, application software, and video games.
C++ is an extension of the C programming language.
It supports object-oriented programming concepts like classes, inheritance, and polymorphism.
C++ is used for developing operating systems, device drivers, and embedded systems.
It is also popular for developing video games and high-performance applications.
...
Interview Preparation Tips
Skills evaluated in this interview
I applied via Naukri.com and was interviewed in Jan 2021. There were 4 interview rounds.
Interview Questionnaire
1 Question
- Q1. The question were related to Pharmacovigilance domain related to ICSRs and behavioral aspect.
Interview Preparation Tips
I appeared for an interview in Apr 2021.
Interview Questionnaire
2 Questions
- Q1. Self introduction first
- Q2. Explain yourself
Interview Preparation Tips
Increase vocabulary of English which will impact better
I applied via Naukri.com and was interviewed in Jun 2021. There was 1 interview round.
(1 Question)
- Q1. Difference between C and Java
- Ans.
C is a procedural language while Java is an object-oriented language.
C is compiled while Java is interpreted
C has pointers while Java does not
Java has automatic garbage collection while C does not
Java is platform-independent while C is not
Java has built-in support for multithreading while C does not
Interview Preparation Tips
- Java
Skills evaluated in this interview
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DecisionTree Analytics & Services Data Analyst Intern Interview Process
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