Uber Advanced Technologies Group Interview Questions and Answers

Recursive functions solve problems by breaking them down into smaller subproblems, often leading to elegant solutions.

• A recursive function calls itself with modified parameters.

• Base case is crucial to prevent infinite recursion.

• Example: Factorial function - factorial(n) = n * factorial(n-1) with base case factorial(0) = 1.

• Example: Fibonacci sequence - fib(n) = fib(n-1) + fib(n-2) with base cases fib(0) = 0, fib(1) = 1.

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Bug/defect life cycle is a process of identifying, reporting, prioritizing, fixing, and verifying software defects.

• Defect identification

• Defect reporting

• Defect prioritization

• Defect fixing

• Defect verification

Smoke testing is a quick and shallow test to check basic functionality, while sanity testing is a more thorough test to ensure system stability.

• Smoke testing is done to check if the critical functionalities of the system are working or not.

• Sanity testing is done to check if the system is stable enough to proceed with further testing.

• Smoke testing is usually done after a build is deployed, while sanity testing is done a...read more