What Okta coding interview questions are asked?

Preparing for a coding interview at Okta involves understanding the types of technical questions that may be asked, which often assess problem-solving abilities, coding proficiency, and system design knowledge. Below are some examples of coding questions that candidates have encountered during Okta interviews:

1. IP Address Validation

Design a function that parses an IP address and returns true if it is correctly constructed. The IP addresses take the form w.x.y.z:port, where w, x, y, and z are each one byte. The port must be in the range 1 to 65,535 inclusive.

2. Detecting DDoS Attacks from Log Files

Create a function to parse log files to detect IP addresses that are participating in a Distributed Denial of Service (DDoS) attack. The function should return a list of any IP addresses that made three requests in a second resulting in a 400 error code.

3. Name Abbreviation Implementation

Write a Java implementation of a method that abbreviates names. For example, given the input "John Doe Smith," the output should be "J. D. Smith."

4. Searching in a Rotated Sorted Array

Write a function to search for a target value in a rotated sorted array. Suppose an array sorted in ascending order is rotated at some pivot unknown to you beforehand. You are given a target value to search. If the value is in the array, return its index; otherwise, return -1. Your algorithm's runtime complexity should be in the order of O(log n).

5. SQL Query for Actor-Movie Relationship

Write a SQL query that retrieves each actor and all the movies they were in, using the rent-a-movie database.

6. SQL Query for Highest or Lowest Rated Movie

Write a SQL query that retrieves the movie with the highest or lowest rating, using the rent-a-movie database.

Preparation Tips

• Practice Coding Challenges: Okta frequently asks coding questions with medium/intermediate difficulty. Ensure you're well-prepared by practicing similar questions on platforms like Interview Query's question bank or AI interviewer.

• System Design Proficiency: Be ready to tackle system design questions. Understanding the fundamentals and practical applications of system design can make a significant difference.

• Clarify Questions During the Interview: If the interviewer seems uninterested or does not provide clarifying answers, stay calm. Take the initiative to ask for more details and clarify the problem statement to the best of your ability.

By focusing on these areas and practicing relevant coding problems, you can enhance your readiness for a coding interview at Okta.