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Blockchain Developer Online Test
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Test duration:
20
min
Notes
No. of questions:
10
Tie
Level of experience:

Blockchain Test

The Blockchain developer online test helps tech recruiters and hiring managers evaluate Blockchain development skills. The Blockchain developer assessment test helps in hiring for various job roles, including Blockchain Developer and Blockchain Engineer. Our tests help build winning teams by increasing the interview-to-selection ratio by up to 62% and reducing hiring time by up to 45%.

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Candidates
Assessed
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Organizations Served
Fujitsu
Paypal
Capgemini
Deloitte
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About

Blockchain Developer Online Test

Blockchain is one of the digitized, decentralized, public ledgers of all cryptocurrency transactions. Constantly growing as ‘completed’ blocks (the most recent transactions) are recorded and added to it in chronological order, it allows market participants to keep track of digital currency transactions without central record keeping. Blockchain is the main technological innovation of Bitcoin.

Blockchain developer assessment test helps recruiters and hiring managers to assess candidate’s ability to design and develop Blockchain technologies. iMocha’s Blockchain developer skills assessment test is created and validated by industry experts to assess and hire Blockchain developer as per industry standards. This test evaluates candidate's practical knowledge and identifies job-readiness and fitment. Candidates can take the Blockchain developer skills tests from anywhere in the world, irrespective of timezone.

Two important use cases for Blockchain Technology skill test

#1 Identifying job-fit candidates based on job roles

You can create customized skill assessments for any given job role. Using this feature, you can choose questions from different skill types, including functional, technical, and soft skills. For example, with our customized Blockchain developer online test, you can evaluate candidates’ knowledge of Blockchain mining, EVM, Ethereum application, chain code, Hyperledger Composer, Ethereum mining and more.

#2 Skill-gap analysis of your employees

iMocha allows you to measure employees' skill competency through Blockchain developer online test. It determines the existing skill level and identifies the areas for growth. It also measures the knowledge and impact of the training and traces individual employees’

Use iMocha's assessment to hire skill fit, remove bias, and save money!
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How it works

Test Summary

The Blockchain developer assessment test is created by subject matter experts (SMEs) specializing in the domain. iMocha’s test platform helps you to invite candidates to take the Blockchain online test. You can get instant results and an option to share this result with your recruiting team. Our powerful reporting helps you to analyze section wise performance of candidate to gauge his strengths and weaknesses. Features like window violation and webcam proctoring help detect cheating during the test.

Test Creation Process

Our Blockchain developer assessment tests will help you assess candidates' specific skills. Industry experts follow a methodical approach to create questions based on their knowledge and difficulty levels – easy, medium, and hard.  Example: questions based on Hyperledger Composer, Ethereum Application, and Blockchain Mining will only be created by Blockchain specialists.

You can pick the questions you like or request us to create more questions if required.

Test Analytics Report

Our Blockchain developer test reports are insightful and easy to analyze, which will help you select relevant candidates for interview. You can use our role-based access control feature to restrict system access based on the roles of individual users within the recruiting team. Features like window violation and webcam proctoring included in the proctoring suit helps detect cheating while candidates attempt the Blockchain developer test.

Test Question Format

Blockchain developer online test may contain MCQ's (Multiple Choice Questions), MAQ's (Multiple Answer Questions), Fill in the Blanks, Descriptive, Whiteboard Questions, Audio / Video Questions, AI-LogicBox (AI-based Pseudo-Coding Platform), Coding Simulations, True or False Questions, etc.

Test Design Guidelines

Blockchain developer skills test is designed considering EEOC guidelines; it will help you assess and hire diverse talent without bias.

Test Duration
20
No. of Questions
10
Level of Expertise
Useful for hiring
  • Blockchain Developer
  • Blockchain Engineer
Topics Covered
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Participant Roles

Blockchain networks have participants playing various roles. Participants are business users permitted to join the network and carry out transactions with network participants.

Validation

Validation ensures the integrity of blockchain. Validators are dedicated computers connected to the network. Validator nodes store full blockchain or abbreviated versions for quick analysis.
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Chain code

Chain code are smart contracts – software used for reading and updating data on blockchain ledger. Chain code turns business logic into executable programs verified by members of the network.
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Hyperledger Composer

It comprises a set of collaboration tools to build blockchain business network that facilitates developers and business owners to develop blockchain applications and smart contracts to resolve business problems.
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Ethereum Mining

This process involves building and adding a block of transactions to the Ethereum network of blockchain. It uses the PoW (Proof-of-Work) consensus mechanisms.
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Ethereum- geth

Also called Go-ethereum, it is the Ethereum client implemented in Go.
Sample Question
Choose from our 100,000+ questions library or add your own questions to make powerful custom tests.

Question types :

Multiple Option

Topic:

Difficulty:

Hard


Q 1. You have been asked to train « Naive Bayes model for spam detection dataset

Using Python command, what wil you add in the given code at XXXX to deciore, it and train your modal for the given dataset?

import numpy os np

X= nporroyll 3. 2b[1 21 [2.21.[3,21)
Y= nporray(fi.a,a.1))

XXXX

from skinamnaive_bayas import

Gaussianna

otf = Gaussianne()

ceataie(x ¥)

from skinamnaive_bayas import

Gaussianna

otf = Gaussianne()

ceataie(x ¥)

from skinamnaive_bayas import

Gaussianna

otf = Gaussianne()

ceataie(x ¥)

from skinamnaive_bayas import

Gaussianna

otf = Gaussianne()

ceataie(x ¥)

Question types :

Multiple Option

Topic:

Machine teaming

Difficulty:

Hard


Q 1. Q2 Lets assume that you have 6 Pandas DataFrome(af) in the below tole.

Index Code Open High
0 AAPL 19877 70074
1 AAPL 19877 70074
2 AAPL 19877 70074
3 AAPL 19877 70074
4 AAPL 19877 70074

When the following commend is executed, what hoppens to the DatoFrome?

df= defiinat()
Y= nporray(fi.a,a.1))

Index Code Open High
0 AAPL 19877 70074
1 AAPL 19877 70074
2 AAPL 19877 70074
3 AAPL 19877 70074
4 AAPL 19877 70074
Index Code Open High
0 AAPL 19877 70074
1 AAPL 19877 70074
2 AAPL 19877 70074
3 AAPL 19877 70074
4 AAPL 19877 70074
it gives an error becouse of the third row which has on empty string.
None of these

Question types :

Multiple Option

Topic:

Hyperledger Composer

Difficulty:

Hard

Question:

You own an organization, and you need to reduce the time to market, hide the complexity of DLT technology, and manage and offer domain modeling capabilities. Which of the following will help you implement these requirements?


Options

  • Channel<br />&nbsp;
  • Fabric CA<br />&nbsp;
  • Peers<br />&nbsp;
  • Hyperledger Composer<br />&nbsp;
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You can customize this test by
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Setting the difficulty level of the test

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Requesting a tailor-made test

Receive a tailored assessment created by our subject matter experts to ensure adequate screening.

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Now my team of 25 recruiters has adopted this measure and it has done wonders for our clients. Thanks to the Customer Success Team of iMocha. They have shared the best practices of quick test creation and also helped us in training all our recruiters for various functionalities of the tool.
Client

Vipin Sharma,

Mobile Programming
FAQ
What is Data Science?
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.NET Design Pattern test helps recruiters to evaluate candidates' ability to work on GOF Decorator Design Pattern to solve recurring design problems and design flexible and reusable object-oriented software

Why use iMocha’s online data science test?
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What are the key skills that recruiter should look for while hiring a Data Scientist?
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What are few interview questions that recruiter/hiring manager should ask while hiring a data scientist?
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How do you assess the data scientists?
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How is Blockchain developer online test customized?
Down Arrow Circle

Our SMEs prepare customized Blockchain developer assessments depending on the desired primary and secondary skills, such as Blockchain, Small Contracts, Solidity, Ethereum. In addition, proficiency in some of the major programming languages like JavaScript, C++ etc is also accounted. Questions can be customized according to the difficult level depending on the experience of candidates.

What are the certifications required for this role?
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Some of the certifications required for the role are:

• Blockchain Fundamentals Professional Certificate

• Certified Blockchain Expert by Blockchain Council

• Certified Blockchain Security Expert

• Blockchain Foundations and Uses Cases by Coursera and ConsenSys Academy

• Blockchain Basics

• Blockchain Specialization by Coursera and University at Buffalo

• Learn the Basics of Blockchain with Python

What are the most common interview questions for this role?
Down Arrow Circle

Some of the common interview questions for the role includes:

• What is the difference between Bitcoin Blockchain and Ethereum Blockchain?

• What is the principle of Blockchain technology?

• What are the different types of Blockchains?

• What are the two types of records present on Blockchain database?

• What is the role of encryption in Blockchain?

• What are the key features of Blockchain?

• How is a block identified in the Blockchain approach?

• What are Merkle trees and why is it important in Blockchain?

• What are the popular platforms for developing Blockchain applications?

What are roles and responsibilities of Blockchain developer?
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Some of the roles and responsibilities of Blockchain developer includes:

• Blockchain developers work closely with the technical and management teams to understand the needs and visualize innovative features.

• Leverage programming languages to generate new ideas for allied tools and technologies to help in developing user interfaces and application features.

• Build infrastructure using the latest security methods and using it to secure digital transaction data from hackers.

• Maintaining and extending existing server-side and client-side programs.

• Employing the latest tools and technologies to improve and protect Block-chain based applications.

• Maintain record of different stages of Blockchain development including both current and new solutions.

What are the required skillsets of Blockchain developer?
Down Arrow Circle

Some of the required skillsets are:

Hard Skills

• Understanding of Data Structures

• Sound knowledge of Smart Contracts

• Solid grasp of security principles

• In-depth experience in distributed systems

• Understanding of eco-systems and standards

• Knowledge of Blockchain architecture and how it works

• Knowledge of Cryptography for proper functioning

• Well versed with programming languages like C, Python, JavaScript, C#, Golang, and Java

• Practical Blockchain expertise and skills with concepts such as distributed ledger technology, cryptographic hash functions, and consensus

Soft Skills

• Communication

• Aptitude

What is the package of Blockchain developer?
Down Arrow Circle

A Blockchain Developer with 2 to 4 years of experience in Blockchain technology can expect an annual salary of $1,64,761 per year, which is also the highest Blockchain developer salary on record.