Riskcovry Interview Questions and Answers

In Ruby, you can sort objects based on keys using the sort_by method.

• Use the sort_by method with a block to specify the key to sort by.

• For example, sorting an array of hashes by a specific key: array_of_hashes.sort_by { |hash| hash['key_to_sort_by'] }

• You can also sort objects by multiple keys by chaining sort_by calls.

Calculate the frequency of elements in an array

• Iterate through the array and count occurrences of each element

• Use a hash map to store element frequencies

• Return the hash map with element frequencies

Use random function and two pointer approach to pick a random number from an array of strings.

• Initialize two pointers at the start and end of the array

• Generate a random index between the two pointers

• Return the element at the random index

A sprint for Facebook would involve planning and executing a short, focused period of work to achieve specific goals.

• Define the goals and objectives of the sprint, such as increasing user engagement or improving ad targeting

• Break down the tasks into smaller, manageable chunks to be completed within the sprint timeframe

• Assign roles and responsibilities to team members based on their expertise and skills

• Set a timeline fo...read more

Software testing is the process of evaluating a software application to find defects and ensure it meets requirements.

• Smoke testing is a preliminary test to check if the software build is stable enough for further testing.

• Sanity testing is a subset of regression testing, focusing on specific areas of functionality after changes.

• Test cases for a glass water bottle could include checking for leaks, verifying the lid seal...read more