LambdaTest Project Engineer Interview Questions and Answers

Q1. How to print numbers 1-100 using two go routines sequentially
Ans. 
Use two go routines to print numbers 1-100 sequentially
• Create two go routines, one for printing odd numbers and one for printing even numbers

• Use channels to synchronize the two go routines and ensure sequential printing

• Start the odd number go routine first, then start the even number go routine
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Q2. How to write generator functions using go language
Ans. 
Generator functions in Go language allow for efficient iteration over a sequence of values.
• Use the 'yield' keyword to return values one at a time from the generator function.

• Generator functions are defined with a 'func' keyword followed by the function name and 'chan' keyword.

• Example: func myGenerator() chan int { }

• Use a 'for' loop to iterate over the values returned by the generator function.
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Q1. Why do we use sync.Cond and sync.once
Ans. 
sync.Cond is used for signaling between goroutines and sync.Once is used for running initialization code only once.
• sync.Cond is used for goroutines to wait for or signal each other when a certain condition is met

• sync.Once is used to ensure a function is only executed once, typically used for initialization tasks

• Example: Using sync.Cond to coordinate multiple goroutines accessing a shared resource

• Example: Using sync.Onc...read more
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Q2. Understanding about reflect package
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Q1. Technology related question on basics if API
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Q1. Manager level discussion - Technologies and Frameworks
Ans. Framework Structure overview and Technologies usage over the experience
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Q1. Client Interview - Technologies and Frameworks
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Q2. Framework explanation and Technologies usage
Ans. 
Frameworks are tools that provide structure and guidelines for developing software applications. Technologies are the specific tools and languages used in development.
• Frameworks like Angular, React, and Spring provide pre-built components and architecture for web development.

• Technologies like HTML, CSS, JavaScript, Java, and SQL are commonly used in software development.

• Choosing the right framework and technologies dep...read more
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Q1. Technical round
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Q1. Salary discussion
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Q1. All about functional testing
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Q2. All about basic SQL, and testing methodologies
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Q1. Manager round. al about the management queries,
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Q1. Behavoural and CTC discussion
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Array code to sort array in descending order

Q1. Which should prefer flow or trigger
Ans. 
It depends on the specific requirements and use case.
• Use flows for declarative automation and to automate standard processes.

• Use triggers for more complex automation and to perform custom logic.

• Flows are easier to build and maintain, while triggers offer more flexibility and control.

• Consider the complexity of the automation, the need for custom logic, and the scalability of the solution.
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