Tredence Analytics interview experience Real time questions & tips from candidates to crack your interview

Data Analytics

Tredence Analytics
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2 rounds | 4 Coding problems

Interview preparation journey

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Journey
Tredence visited our campus for campus placement this year and I got my test cleared and then there were 2 rounds of Interviews, which went really smooth and I cleared that.
Application story
Tredence visited our campus for hiring for Data Analytical Role. I got an opportunity to apply there and after clearing the tests got a chance for Interview and they went also good.
Why selected/rejected for the role?
I got selected in this role because I prepared well for SQL, Python topics and they were asked in Interviews. DSA not so hard level was asked but It was of easy to medium level.
Preparation
Duration: 6 months
Topics: DSA, OOPS, DBMS, SQL Queries, Python, OS
Tip
Tip

Tip 1 : Have good medium knowledge of DSA
Tip 2 : Have good knowledge about your Projects
Tip 3 : As this was data analytical role, You should have knowledge of Python, SQL

Application process
Where: Campus
Eligibility: 7 CGPA
Resume Tip
Resume tip

Tip 1 : Have good Projects mentioned
Tip 2 : Try to mention SQL and Python also

Interview rounds

01
Round
Medium
Online Coding Interview
Duration90 minutes
Interview date10 Nov 2022
Coding problem2

It was a round mix of everything like DSA Questions, Aptitude Questions, Writing Analytical Questions and some SQL and Python based were also there.

1. Middle of Linked List

Easy
20m average time
80% success
0/40
Asked in companies
SamsungInfosysCognizant

Given a singly linked list of 'N' nodes. The objective is to determine the middle node of a singly linked list. However, if the list has an even number of nodes, we return the second middle node.

Note:
1. If the list is empty, the function immediately returns None because there is no middle node to find.
2. If the list has only one node, then the only node in the list is trivially the middle node, and the function returns that node.
Problem approach

I solved it using fast and slow pointer in coding exam

Try solving now

2. Guestimate

How many users use smartphones in India? Like proper explanation was given and that too in very handy way, so this was the good process.

Problem approach

Tip 1 : Try to solve some guesstimates writing problem before
Tip 2 : It is easy problem if you know basic maths, calculations and writing
 

02
Round
Medium
Video Call
Duration60 minutes
Interview date16 Nov 2022
Coding problem2

This was first technical round of Interviews. Basic DSA Questions were asked and a lot of SQL questions were also asked in this.

1. Middle Of Linked List

Easy
20m average time
80% success
0/40
Asked in companies
SamsungInfosysCognizant

Given a singly linked list of 'N' nodes. The objective is to determine the middle node of a singly linked list. However, if the list has an even number of nodes, we return the second middle node.

Note:
1. If the list is empty, the function immediately returns None because there is no middle node to find.
2. If the list has only one node, then the only node in the list is trivially the middle node, and the function returns that node.
Problem approach

I explained 2 approaches, first using length and then using fast and slow pointer.

Try solving now

2. First unique character in a string

Moderate
15m average time
85% success
0/80
Asked in companies
WalmartOlaQuest Technologies

You are given a string S of length N. Your task is to find the index(considering 1-based indexing) of the first unique character present in the string. If there are no unique characters return -1.

Note

A unique character in a string is the character that appears only once in the string. For example, ‘h’, ‘e’, and ‘o’ are the unique characters in the string “hello”.
Problem approach

Used Hashmap and properly explained the approach to them

Try solving now

Here's your problem of the day

Solving this problem will increase your chance to get selected in this company

Skill covered: Programming

Which SQL keyword removes duplicate records from a result set?

Choose another skill to practice
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