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Codetentacles Technologies Blockchain Developer Interview Questions and Answers

Updated 23 Jan 2025

Codetentacles Technologies Blockchain Developer Interview Experiences

1 interview found

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I was interviewed before Jan 2024.

Round 1 - One-on-one 

(3 Questions)

  • Q1. What are the different types of blockchains, and what are the differences between them?
  • Ans. 

    Different types of blockchains include public, private, and consortium blockchains.

    • Public blockchains are open to anyone and allow for anonymous participation, examples include Bitcoin and Ethereum.

    • Private blockchains are restricted to a specific group or organization, providing more control over permissions and data access.

    • Consortium blockchains are semi-decentralized, where multiple organizations share the responsibi...

  • Answered by AI
  • Q2. What are the different types of data types and their visibility?
  • Ans. 

    Different data types in blockchain development and their visibility

    • Primitive data types: int, float, bool, string (visible to all)

    • Structs: custom data structures (visible within the contract)

    • Arrays: collection of data (visible within the contract)

    • Mappings: key-value pairs (visible within the contract)

  • Answered by AI
  • Q3. How does a proxy contract work?
  • Ans. 

    A proxy contract acts as an intermediary between a user and a target contract, allowing the user to interact with the target contract through the proxy.

    • Proxy contract holds the logic of the target contract and delegates calls to it.

    • Users interact with the proxy contract, which forwards the calls to the target contract.

    • Proxy contracts can be upgraded without affecting the user's interaction with the target contract.

  • Answered by AI

Interview questions from similar companies

Interview Questionnaire 

1 Question

  • Q1. React life cycle

I applied via Campus Placement and was interviewed before Feb 2020. There were 4 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. Hr

Interview Preparation Tips

Interview preparation tips for other job seekers - You should be true to what you are putting before the interviewer . Try to put your ideas Add something you did well in your career like in projects /research which you know very well and versed in concepts about it for open interview so that interviewer can get bandwidth where he can ask questions from. This is simply a key .

Interview Questionnaire 

1 Question

  • Q1. HTML, CSS, BOOTSTRAP, PHP. SQL

I applied via Campus Placement and was interviewed in Oct 2020. There were 4 interview rounds.

Interview Questionnaire 

3 Questions

  • Q1. C++ basic
  • Q2. Hh
  • Q3. Yy

Interview Preparation Tips

Interview preparation tips for other job seekers - Hh

I applied via Company Website and was interviewed before May 2020. There was 1 interview round.

Interview Questionnaire 

2 Questions

  • Q1. Explain about your project you did
  • Q2. I did the kolhapur tourism websites in visual studio using asp.net c# sql server and html css javascript

Interview Preparation Tips

Interview preparation tips for other job seekers - Be Confident and try to answer every question . And good communication skills are important

I was interviewed before Sep 2020.

Round 1 - Coding Test 

(1 Question)

Round duration - 140 minutes
Round difficulty - Medium

Test timing was at 2:00 pm , it was conducted in a college and the environment was good for the test. Camera was a primary part of test, so no suspicious activity.

  • Q1. 

    Sum of Two Numbers Represented as Arrays

    Given two numbers in the form of two arrays where each element of the array represents a digit, calculate the sum of these two numbers and return this sum as an ar...

  • Ans. 

    Given two numbers represented as arrays, calculate their sum and return the result as an array.

    • Iterate through the arrays from right to left, adding digits and carrying over if necessary

    • Handle cases where one array is longer than the other by considering the remaining digits

    • Ensure the final sum array does not have any leading zeros

  • Answered by AI
Round 2 - Face to Face 

Round duration - 20 minutes
Round difficulty - Easy

The round was conducted at around 12 p.m. I was called at the college location and then it was conducted. The interviewer was quite polite and frank.

Round 3 - HR 

Round duration - 8 minutes
Round difficulty - Easy

This round was conducted right after finishing and clearing the technical round at the same place and on the same day.

Interview Preparation Tips

Eligibility criteriaAbove 60 %Wipro Limited interview preparation:Topics to prepare for the interview - OOPS, Data Structures, Database Concepts, Coding problemsTime required to prepare for the interview - 2-3 monthsInterview preparation tips for other job seekers

Tip 1 : Practice atleast 2-3 Coding problems daily so your logic building becomes stronger.
Tip 2 : Exercise problems based on OOPS concepts and others too.
Tip 3 : If you can have your own project built, then it's the major point and will act as a plus point.

Application resume tips for other job seekers

Tip 1 : Your resume should be in standard form, short and simple will be more effective.
Tip 2 : Whatever you have learned, you need to mention it in your resume as that will be your primary source of selection and having project on your resume is important.

Final outcome of the interviewSelected

Skills evaluated in this interview

I applied via Naukri.com and was interviewed in Jul 2020. There were 4 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. SOLID principals, oops, c# basics, SQL server, azure, design pattern

Interview Preparation Tips

Interview preparation tips for other job seekers - Clear basics of oops and design pattern

I applied via Amcat and was interviewed before Jul 2021. There were 2 interview rounds.

Round 1 - Aptitude Test 

Refer R S Agarwal book for apptitude

Round 2 - One-on-one 

(1 Question)

  • Q1. Write a c program on fractional numbers
  • Ans. 

    A C program to perform arithmetic operations on fractional numbers.

    • Use float or double data type to store fractional numbers.

    • Use scanf() to take input from the user.

    • Perform arithmetic operations like addition, subtraction, multiplication, and division.

    • Use printf() to display the result.

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Be prepared refer R S Agarwal book for apptitude test

Skills evaluated in this interview

I applied via Campus Placement and was interviewed before May 2021. There were 4 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Aptitude Test 

VERBAL QUANT DI/LR and Picture based test

Round 3 - Technical 

(1 Question)

  • Q1. Write a fibonaci series in c++ or C?
  • Ans. 

    Fibonacci series can be easily implemented using loops in C++ or C.

    • Declare variables for first two numbers of the series

    • Use a loop to calculate and print the next number in the series

    • Repeat the loop until desired number of terms are printed

  • Answered by AI
Round 4 - HR 

(1 Question)

  • Q1. Informed about the policies and made us sign a document

Interview Preparation Tips

Interview preparation tips for other job seekers - Just be calm and composed while answering the questions.

Skills evaluated in this interview

Codetentacles Technologies Interview FAQs

How many rounds are there in Codetentacles Technologies Blockchain Developer interview?
Codetentacles Technologies interview process usually has 1 rounds. The most common rounds in the Codetentacles Technologies interview process are One-on-one Round.
What are the top questions asked in Codetentacles Technologies Blockchain Developer interview?

Some of the top questions asked at the Codetentacles Technologies Blockchain Developer interview -

  1. What are the different types of blockchains, and what are the differences betwe...read more
  2. What are the different types of data types and their visibili...read more
  3. How does a proxy contract wo...read more

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Codetentacles Technologies Blockchain Developer Interview Process

based on 2 interviews

Interview experience

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4.5/5

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3.5

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3.5

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4.0

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4.0

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3.5

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4.0

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