Knoldus Inc Interview Questions, Process, and Tips

It was basic one you need to prepare according to your resume

Q1. Tell me about yourself Where you see yourself in 5 years
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Q1. Write a java program to return the prime number for a given range?
Ans. 
Java program to return prime numbers in a given range
• Iterate through the given range and check if each number is prime

• A prime number is a number that is only divisible by 1 and itself

• Use a nested loop to check for divisibility by numbers less than the current number
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Q2. How to achieve synchronisation in selenium?
Ans. 
Synchronization in Selenium ensures that the automation script waits for the web page to load completely before performing actions.
• Use implicit wait to wait for a certain amount of time before throwing an exception

• Use explicit wait to wait for a specific condition to be met before proceeding

• Use fluent wait to wait for a specific condition with a polling frequency
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Q3. Difference between driver.close() and driver.quit()
Ans. 
driver.close() closes the current window, while driver.quit() closes all windows and ends the WebDriver session.
• driver.close() closes the current window or tab in the browser.

• driver.quit() closes all windows and tabs opened by the WebDriver and ends the WebDriver session.

• driver.close() is used when you want to close a specific window, while driver.quit() is used when you want to close the entire browser session.
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Q4. Difference between soap and rest api ?
Ans. 
SOAP is a protocol, while REST is an architectural style for APIs.
• SOAP is a protocol that uses XML for messaging and operates over HTTP, SMTP, etc.

• REST is an architectural style that uses standard HTTP methods like GET, POST, PUT, DELETE.

• SOAP is more rigid and requires more bandwidth, while REST is lightweight and flexible.

• SOAP has built-in security features like WS-Security, while REST relies on external security meas...read more
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Q5. What are the different http methods? Explain each one of them!
Ans. 
HTTP methods are used to indicate the desired action to be performed on a resource.
• GET - Retrieve data from a server

• POST - Send data to a server to create/update a resource

• PUT - Update a resource on the server

• DELETE - Remove a resource from the server

• PATCH - Update a resource partially

• OPTIONS - Get information about the communication options available for a resource

• HEAD - Retrieve headers from a server without the body
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There were 2 coding question on the hacker rank platform , questions were easy , both were string and java related issue problem of DSA

Q1. Write a java program to count the triplet in a given array ?
Ans. 
Java program to count triplets in a given array
• Create a nested loop to iterate through all possible triplets in the array

• Use a counter to keep track of the number of triplets that satisfy the condition

• Check if the sum of the triplet is equal to a given target value
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Q2. What are the different exceptions you have faced in selenium?
Ans. 
Some common exceptions in Selenium include NoSuchElementException, ElementNotVisibleException, TimeoutException, StaleElementReferenceException.
• NoSuchElementException occurs when an element could not be found in the DOM.

• ElementNotVisibleException occurs when an element is present in the DOM but not visible on the page.

• TimeoutException occurs when a command does not complete in the specified time.

• StaleElementReferenceEx...read more
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Q3. What is json schema?
Ans. 
JSON Schema is a vocabulary that allows you to annotate and validate JSON documents.
• JSON Schema defines the structure of JSON data

• It provides clear guidelines on what data is allowed and how it should be structured

• JSON Schema can be used to validate JSON data against a predefined schema
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Q1. Why should we hire you ?
Ans. 
I have a strong technical background, excellent problem-solving skills, and a proven track record of delivering successful software solutions.
• Extensive experience in software development and consulting

• Strong problem-solving skills

• Proven track record of delivering successful software solutions

• Excellent communication and teamwork abilities
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Q2. Where do you see yourself in next 5 years?
Ans. 
In the next 5 years, I see myself growing into a senior software consultant role, leading projects and mentoring junior team members.
• Continuing to enhance my technical skills and knowledge in software development

• Taking on more responsibilities in project management and client interactions

• Mentoring and guiding junior team members to help them grow in their careers

• Possibly pursuing certifications or advanced degrees to f...read more
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Q3. What is your strength and weaknesses?
Ans. 
Strength: Strong problem-solving skills. Weakness: Sometimes too detail-oriented.
• Strength: Ability to quickly analyze complex problems and find effective solutions

• Weakness: Can get caught up in minor details and lose sight of the bigger picture

• Strength: Strong communication skills to explain technical concepts to non-technical stakeholders

• Weakness: Difficulty delegating tasks and trusting others to complete them

• Strengt...read more
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Q1. Be firm with Agile Principles
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Q2. Real time project handling
Ans. 
Real time project handling involves managing tasks and resources efficiently to ensure timely completion.
• Prioritize tasks based on deadlines and dependencies

• Regularly update project status and communicate with team members

• Use project management tools for real-time tracking and collaboration

• Adjust plans as needed to address any delays or issues

• Ensure clear communication channels for quick decision-making
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Q1. Questions related to Agile, team handling, project management , scrum etc
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Q1. Ask questions from my resume related to the tech stack I have worked on.
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Q2. Basic Java questions
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Hard level of coding

Q1. Ds algo and oops concepts
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Q2. Machine learning algorithms
Ans. 
Machine learning algorithms are used to train models to make predictions or decisions based on data.
• Machine learning algorithms can be supervised, unsupervised, or semi-supervised

• Examples of machine learning algorithms include linear regression, decision trees, and neural networks

• Machine learning algorithms require large amounts of data to train and improve accuracy
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