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Optum Global Solutions Interview Questions and Answers

Updated 10 Mar 2024
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Q1. Reverse a string with spaces present in same position Ex: i am indian o/p:n ai dnimai

Ans.

To reverse a string with spaces present in the same position, we can split the string by spaces, reverse each word, and then join them back together.

  • Split the string by spaces to get individual words

  • Reverse each word

  • Join the reversed words back together with spaces in between

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Q2. Permutations of string of length n in string of length m

Ans.

Generate all permutations of a string of length n within a string of length m.

  • Use recursion to generate all possible permutations of the string of length n.

  • Iterate through the string of length m and insert the permutations at different positions.

  • Return an array of strings containing all permutations of the string of length n within the string of length m.

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Q3. How do you run your automation Regression scripts

Ans.

I run automation Regression scripts using a test automation framework and scheduling tools.

  • I organize regression scripts into test suites based on functionality

  • I use a test automation framework like Selenium or Appium to execute the scripts

  • I schedule the regression runs using tools like Jenkins or TeamCity

  • I analyze the test results and report any failures for further investigation

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Q4. What is bad request in api testing

Ans.

A bad request in API testing is when the server cannot process the request due to incorrect syntax or missing parameters.

  • Bad request status code is 400

  • Common causes include missing or incorrect parameters, invalid data format, or unauthorized access

  • Examples: missing required parameters, incorrect data type in request body

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Discover Optum Global Solutions interview dos and don'ts from real experiences

Q5. Difference between put and post in sql

Ans.

PUT is used to update an existing resource in SQL, while POST is used to create a new resource.

  • PUT is idempotent, meaning multiple identical requests will have the same effect as a single request.

  • POST is not idempotent, meaning multiple identical requests may have different effects.

  • PUT is used to update specific resources identified by the request URI.

  • POST is used to create new resources under the request URI.

  • PUT is typically used for updating existing records in a database.

  • P...read more

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Q6. Find second highest salary in sql

Ans.

Use SQL query with ORDER BY and LIMIT to find the second highest salary.

  • Use ORDER BY clause to sort the salaries in descending order

  • Use LIMIT 1,1 to get the second row after skipping the first row

  • Consider handling cases where there might be ties for the highest salary

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Q7. Count ocurrence of characters in digit

Ans.

Count occurrences of characters in a digit

  • Iterate through each digit in the input array

  • For each digit, convert it to a string and iterate through each character

  • Use a hashmap to keep track of the count of each character

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Q8. Http status in API

Ans.

HTTP status codes are used to indicate the result of a HTTP request made to an API.

  • HTTP status codes range from 1xx to 5xx, with each range representing a different type of response.

  • Some common HTTP status codes include 200 (OK), 404 (Not Found), and 500 (Internal Server Error).

  • Status codes starting with 2 indicate success, 4 indicate client errors, and 5 indicate server errors.

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