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Codetentacles Technologies
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I was interviewed before Jan 2024.
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...
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)
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.
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I applied via Campus Placement and was interviewed before Feb 2020. There were 4 interview rounds.
I applied via Campus Placement and was interviewed in Oct 2020. There were 4 interview rounds.
I applied via Company Website and was interviewed before May 2020. There was 1 interview round.
I was interviewed before Sep 2020.
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.
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...
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
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 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.
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.
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.
I applied via Naukri.com and was interviewed in Jul 2020. There were 4 interview rounds.
I applied via Amcat and was interviewed before Jul 2021. There were 2 interview rounds.
Refer R S Agarwal book for apptitude
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.
I applied via Campus Placement and was interviewed before May 2021. There were 4 interview rounds.
VERBAL QUANT DI/LR and Picture based test
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
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