ZKTeco Biometrics Java Trainee Interview Questions and Answers

Page development using a framework you are familiar with.

All the languages you have mentioned.

Q1. Compensation and other details
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Q1. EXPERIENCE BASED QUESTIONS
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Q2. BASICS 0F MECHANICAL ENGINEERING
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Q1. GENERAL INTRODUCTION
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Q2. STRENGTH AND WEAKNESS
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Q1. NodeJS event loop
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Q2. What isClosure explain with example
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A closure is a function that has access to its own scope, as well as the outer function's scope.
• Closure allows a function to access variables from its outer function even after the outer function has finished executing.

• Example: function outerFunction() { let outerVar = 'I am outer'; return function innerFunction() { console.log(outerVar); }; }

• When innerFunction is called, it can still access outerVar even though outerF
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Q1. What do you know about brd, srs
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BRD stands for Business Requirements Document and SRS stands for Software Requirements Specification.
• BRD outlines the business objectives and requirements for a project.

• SRS details the software requirements needed to meet the business objectives.

• BRD is more high-level and focuses on business needs, while SRS is more detailed and technical.

• BRD is typically created by business analysts, while SRS is created by software d...read more
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Q2. What is the flow chart, process,
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A flow chart is a visual representation of a process or workflow, showing the steps and decisions involved.
• Flow charts use different shapes to represent different actions or steps in a process.

• Arrows indicate the flow of the process from one step to another.

• Decision points are represented by diamonds, with different paths depending on the outcome.

• Examples: process of ordering a product online, steps in a software devel
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Q3. What is wireframe
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A wireframe is a visual representation of a website or app layout that shows the basic structure and functionality without design elements.
• Wireframes are used to plan and communicate the layout and functionality of a digital product.

• They are typically created using simple shapes and placeholders for content.

• Wireframes help stakeholders visualize the structure and flow of a project before investing in design and develop...read more
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Q4. What tools you are use
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I use a variety of tools such as Microsoft Excel, SQL, Tableau, Jira, and Visio to analyze data and create visualizations for stakeholders.
• Microsoft Excel for data analysis and manipulation

• SQL for querying databases

• Tableau for creating visualizations

• Jira for project management

• Visio for creating process flow diagrams
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Q5. Schenerio based questions
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Q1. Threads vs process
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Threads are lightweight processes within a single process, sharing memory space, while processes are independent instances of a program with their own memory space.
• Threads share memory space within a process, allowing for efficient communication and data sharing.

• Processes have their own memory space, making them more isolated and secure.

• Threads are faster to create and switch between compared to processes.

• Processes are...read more
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Q2. Thread synchronization program using semaphore/mutex
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Thread synchronization using semaphore/mutex in programming
• Use semaphores to control access to shared resources among multiple threads

• Mutex can be used to ensure only one thread can access a resource at a time

• Implement a program where threads wait for a semaphore signal before accessing a shared resource
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Aptitude followed by core C++ questions.

Q1. What are the expectations
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Expectations for a Senior Software Engineer
• Strong technical skills and expertise in relevant programming languages and technologies

• Ability to lead and mentor junior team members

• Experience in designing and implementing complex software systems

• Excellent problem-solving and analytical skills

• Strong communication and collaboration skills
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Q2. Why you want to join
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Q1. Tel about yourself
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I am a passionate software developer with experience in Java, Python, and web development.
• Proficient in Java, Python, and web development technologies such as HTML, CSS, and JavaScript

• Experience working on various projects including a web-based inventory management system using Django framework

• Strong problem-solving skills and ability to work well in a team environment
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White board coding test

Q1. Any other offers in hand?
Ans. 
Yes, I have received offers from two other companies.
• Received offers from Company A and Company B

• Currently evaluating all offers before making a decision
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Q2. Situation based question
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