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I applied via Naukri.com and was interviewed before Dec 2020. There were 4 interview rounds.
Echo and print are both used to output text in PHP, but echo is faster and can output multiple values at once.
Echo is a language construct, while print is a function.
Echo can output multiple values separated by commas, while print can only output one value at a time.
Echo does not return a value, while print returns a value of 1.
Echo is faster than print because it does not need to return a value.
Example of echo: echo '...
require and include are both used to include external PHP files, but require will cause a fatal error if the file is not found, while include will only produce a warning.
require is used when the included file is essential for the script to run
include is used when the included file is not essential for the script to run
require_once and include_once are used to prevent multiple inclusions of the same file
require will sto...
Printing * using loops is a basic programming exercise.
Use nested loops to print * in a pattern
Use a for loop to print * in a straight line
Use a while loop to print * until a certain condition is met
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Absolute xpath specifies the complete path from the root element to the desired element, while relative xpath specifies the path relative to the current element.
Absolute xpath starts with a single forward slash (/) and is more specific.
Relative xpath starts with a double forward slash (//) and is more flexible.
Absolute xpath is more prone to breaking if the structure of the page changes.
Relative xpath is easier to main...
posted on 14 Apr 2025
I appeared for an interview before Apr 2024, where I was asked the following questions.
I prioritize collaboration, risk assessment, and continuous improvement in test planning and strategy.
Define clear objectives: Establish what success looks like for the project, e.g., 95% test coverage.
Involve stakeholders: Collaborate with developers, product owners, and users to gather requirements and expectations.
Risk assessment: Identify high-risk areas and prioritize testing efforts accordingly, such as focusing ...
I manage QA metrics through systematic tracking, analysis, and reporting to ensure quality and continuous improvement.
Define key metrics: Examples include defect density, test coverage, and pass/fail rates.
Use tools: Implement tools like JIRA or TestRail for tracking defects and test cases.
Regular reporting: Create dashboards for real-time visibility of QA metrics to stakeholders.
Analyze trends: Review historical data ...
I appeared for an interview in Mar 2025, where I was asked the following questions.
Supervised learning uses labeled data for training, while unsupervised learning identifies patterns in unlabeled data.
Supervised learning requires labeled datasets, e.g., predicting house prices based on features like size and location.
Unsupervised learning works with unlabeled data, e.g., clustering customers based on purchasing behavior.
In supervised learning, the model is trained to minimize error between predicted ...
Key considerations for RESTful API design include resource identification, statelessness, and error handling strategies.
Use meaningful resource URIs (e.g., /users, /products).
Implement HTTP methods correctly: GET for retrieval, POST for creation, PUT for updates, DELETE for removal.
Ensure statelessness: each request should contain all necessary information.
Use appropriate status codes (e.g., 200 for success, 404 for no...
Designing a scalable backend for a learning management system requires careful planning for performance, reliability, and security.
Use microservices architecture to allow independent scaling of components like user management, course content, and analytics.
Implement load balancers to distribute traffic evenly across servers, ensuring no single point of failure.
Utilize a cloud provider (e.g., AWS, Azure) for auto-scalin...
Assign tasks based on past performance by analyzing employee's strengths and weaknesses.
Analyze employee's past performance data
Identify their strengths and weaknesses
Assign tasks that align with their strengths
Provide training or support for areas of weakness
Regularly review and adjust task assignments based on performance
Consider employee preferences and career goals
Assuming the blog covers popular sports, the number of viewers can range from a few thousand to millions depending on the quality of content and marketing strategies.
Consider the popularity of the sports covered in the blog
Evaluate the quality of content and frequency of updates
Assess the marketing strategies used to promote the blog
Look at the engagement level of the blog's social media accounts
Take into account the c...
A thief operating in shopping can earn anywhere from a few thousand to millions of dollars per year depending on their tactics and location.
The thief's location and the type of stores they target will greatly impact their earnings
Factors such as the thief's level of experience, skill, and risk-taking behavior will also play a role in their earnings
Some thieves may work alone while others may operate in organized groups...
Understanding car passing probabilities over time helps in traffic analysis and planning.
Probability can be calculated using the formula: P = (number of successful outcomes) / (total outcomes).
If a car passes every 10 minutes on average, in one hour (60 minutes), you expect 6 cars.
For a subset time, adjust the expected number of cars based on the time interval.
Example: In 15 minutes, if 6 cars pass in 60 minutes, expec...
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