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O3 Hire Interview Questions and Answers

Updated 8 Apr 2024

O3 Hire Interview Experiences

Popular Designations

6 interviews found

I applied via Company Website and was interviewed in Sep 2022. There were 3 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Properly align and format text in your resume. A recruiter will have to spend more time reading poorly aligned text, leading to high chances of rejection.
View all tips
Round 2 - One-on-one 

(2 Questions)

  • Q1. Introductions Small Talk Information Gathering Question/Answer Wrapping Up
  • Q2. Stages of an Interview #1) Introductions. One of the most important steps in the interview process just so happens to be the first. ... #2) Small Talk. After introductions are finished, it is a good idea c...
Round 3 - Assignment 

Assignment. Enter the title and any instructions. You can continue to edit and customize your assignment. Otherwise, if you're ready, see below to post, ...

Interview Preparation Tips

Topics to prepare for O3 Hire Work from Home-NON IT Recruitment interview:
  • 10 step guide on how to prepare
Interview preparation tips for other job seekers - Straight from the job seekers themselves, we're sharing the best job search advice people have ever received. Check out these 15 great pieces of wisdom.

Work from Home-NON IT Recruitment Interview Questions asked at other Companies

Q1. What is customer empathy?
View answer (3)

I applied via Naukri.com and was interviewed in Feb 2022. There were 3 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Don’t add your photo or details such as gender, age, and address in your resume. These details do not add any value.
View all tips
Round 2 - HR 

(3 Questions)

  • Q1. Tell us about yourself?
  • Q2. What is Responsibility and functions of a recruiter?
  • Ans. 

    A recruiter is responsible for sourcing, screening, and selecting qualified candidates for job openings.

    • Sourcing and attracting candidates through various channels

    • Screening resumes and conducting initial phone interviews

    • Assessing candidates' skills, qualifications, and cultural fit

    • Coordinating and scheduling interviews with hiring managers

    • Conducting reference checks and background screenings

    • Making job offers and negoti...

  • Answered by AI
  • Q3. What is the process of recruitment?
Round 3 - Behavioral 

(3 Questions)

  • Q1. Tell us about yourself
  • Q2. What is the process of recruiting?
  • Ans. 

    Recruiting process involves identifying job vacancies, sourcing candidates, screening and selecting the best fit for the job.

    • Identify job vacancies and create job descriptions

    • Source candidates through job portals, social media, referrals, etc.

    • Screen resumes and conduct initial interviews

    • Conduct further interviews and assessments to select the best fit

    • Make an offer and onboard the selected candidate

    • Maintain communicatio...

  • Answered by AI
  • Q3. Meaning of you name?
  • Ans. 

    My name means 'grace' in Latin.

    • My name has Latin origins.

    • It signifies grace or elegance.

    • It is a common name in many cultures.

    • It is often associated with positive qualities.

  • Answered by AI

Interview Preparation Tips

Topics to prepare for O3 Hire HR Recruitment Intern interview:
  • HR
Interview preparation tips for other job seekers - Working environment is really good.
Be confident and having great communication.

HR Recruitment Intern Interview Questions asked at other Companies

Q1. What is Responsibility and functions of a recruiter?
View answer (2)

HR Executive Interview Questions & Answers

user image Anonymous

posted on 29 Nov 2022

I applied via Naukri.com and was interviewed in Oct 2022. There were 2 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Double-check your resume for any spelling mistakes. The recruiter may consider spelling mistakes as careless behavior or poor communication skills.
View all tips
Round 2 - HR 

(2 Questions)

  • Q1. Intro, why do you want to join here?
  • Q2. Short and long term goals? And about the company

Interview Preparation Tips

Interview preparation tips for other job seekers - Be honest, confident, know truely about your job role as well as about the company you trying to join.

HR Executive Interview Questions asked at other Companies

Q1. What do you know about Labor Law
View answer (6)

HR Trainee Interview Questions & Answers

user image Anonymous

posted on 8 Apr 2024

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Naukri.com and was interviewed before Apr 2023. There were 2 interview rounds.

Round 1 - HR 

(1 Question)

  • Q1. Tell me something about yourself? What is your strength ? How do you handle in pressure?
Round 2 - HR 

(1 Question)

  • Q1. Tell me something about yourself? What is your weakness? Tell me something about your family? What do you know about Human resource and Recruitment?

HR Trainee Interview Questions asked at other Companies

Q1. What do you know about Manufacturing Industry and Tv Manufacturing ?
View answer (1)

O3 Hire interview questions for popular designations

 HR Executive

 (1)

 Sales Promoter

 (1)

 Business for Work from Home

 (1)

 Work from Home-NON IT Recruitment

 (1)

 HR Trainee

 (1)

 HR Recruitment Intern

 (1)

I applied via Naukri.com and was interviewed in Dec 2021. There were 2 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - HR 

(2 Questions)

  • Q1. What is your family background?
  • Q2. Share details of your previous job.

Interview Preparation Tips

Interview preparation tips for other job seekers - Build your skills update knowledge

Sales Promoter Interview Questions asked at other Companies

Q1. What I Know about device... what is ram,room, Android etc
View answer (11)

I applied via Company Website and was interviewed in Jan 2022. There was 1 interview round.

Round 1 - HR 

Interview Preparation Tips

Interview preparation tips for other job seekers - I am b.a complited , data entry

Business for Work from Home Interview Questions asked at other Companies

Q1. Jeff Bezos is an American entrepreneur who played a key role in the growth of e-commerce as the founder and chief executive officer of Amazon.com, an online retailer.
View answer (1)

Interview questions from similar companies

Interview Questionnaire 

12 Questions

  • Q1. Given a no K and an array. Find pair of elements whose sum is equal to given no K
  • Ans. 

    Find pair of elements in an array whose sum is equal to a given number K.

    • Iterate through the array and for each element, check if K minus the element exists in the array.

    • Use a hash table to store the elements and their indices for faster lookup.

    • If multiple pairs exist, return any one of them.

    • If no pair exists, return null or an appropriate message.

  • Answered by AI
  • Q2. If there is a website run by 2 servers. These 2 servers balances the load using Load Balancer. So, if 1 session is created on 1 server and say load is shift to another server immediately, then how session ...
  • Ans. 

    Session is maintained using session affinity or sticky sessions.

    • Session affinity ensures that a user's session is always directed to the same server.

    • Load balancer uses a unique identifier to route requests to the same server.

    • Sticky sessions can be implemented using cookies or URL rewriting.

    • Session replication can also be used to maintain session data across multiple servers.

  • Answered by AI
  • Q3. WAP to implement some basic Design Patterns like Singleton?
  • Ans. 

    Singleton pattern ensures only one instance of a class is created and provides a global point of access to it.

    • Create a private constructor to prevent direct instantiation of the class

    • Create a private static instance of the class

    • Create a public static method to access the instance

    • Ensure thread safety by using synchronized keyword or static initialization block

    • Examples: Logger, Configuration Manager, Database Connection

  • Answered by AI
  • Q4. Abstract class? How it is different from interface? Is multiple inheritance possible in php? How?
  • Ans. 

    Explaining abstract class, interface and multiple inheritance in PHP.

    • Abstract class is a class that cannot be instantiated and can have abstract methods.

    • Interface is a collection of abstract methods and constants that can be implemented by a class.

    • Multiple inheritance is not possible in PHP, but can be achieved using interfaces.

    • Interfaces can be implemented by multiple classes, allowing for multiple inheritance-like be

  • Answered by AI
  • Q5. Write a stored procedure from a given set of tables and conditions. Simple one
  • Ans. 

    Write a stored procedure from given tables and conditions

    • Identify the tables and their relationships

    • Determine the conditions to be used in the stored procedure

    • Write the SQL code for the stored procedure

    • Test the stored procedure to ensure it returns the desired results

  • Answered by AI
  • Q6. How to increase php memory at run time, if it exhausts?
  • Ans. 

    To increase PHP memory at run time, modify the php.ini file or use ini_set() function.

    • Edit the memory_limit value in php.ini file

    • Use ini_set('memory_limit', '256M') function to increase memory limit at run time

    • Check for memory leaks in the code

    • Use unset() function to free up memory after use

  • Answered by AI
  • Q7. What all we can do with php.ini?
  • Ans. 

    php.ini is a configuration file for PHP that allows users to customize various settings.

    • Change PHP settings such as memory limit, file upload size, and error reporting

    • Enable or disable extensions and modules

    • Set timezone and language settings

    • Configure email settings

    • Control caching and session settings

  • Answered by AI
  • Q8. Session and cookies?
  • Q9. Javascript clausers?
  • Q10. Jquery function to get domain from a url?
  • Ans. 

    Use window.location to get domain from a url in jQuery.

    • Use window.location to get the full url

    • Use .hostname to get the domain name

    • Use .replace() to remove 'www.' if present

  • Answered by AI
  • Q11. WAP to get smallest plindron number larger than the given no?
  • Ans. 

    WAP to find smallest palindrome number larger than given number.

    • Convert the given number to string and check if it is already a palindrome.

    • If not, increment the number and check if it is a palindrome.

    • Repeat until a palindrome number larger than the given number is found.

    • Use a while loop to implement the above steps.

  • Answered by AI
  • Q12. WAP to check if linked list elements is a palindrome without using any extra space?
  • Ans. 

    WAP to check if linked list elements is a palindrome without using any extra space.

    • Traverse the linked list and reverse the second half of the list

    • Compare the first half with the reversed second half

    • Use two pointers to traverse the list, one at normal speed and other at double speed

  • Answered by AI

Interview Preparation Tips

Skills: Algorithm, JQuery, Javascript
College Name: na

Skills evaluated in this interview

Interview Questionnaire 

7 Questions

  • Q1. Find the first non repetitive character in a string?
  • Ans. 

    Find the first non-repeating character in a string.

    • Create a hash table to store the frequency of each character in the string.

    • Iterate through the string and check the frequency of each character.

    • Return the first character with a frequency of 1.

  • Answered by AI
  • Q2. What is connection pooling
  • Ans. 

    Connection pooling is a technique of reusing database connections to improve performance.

    • Connection pooling helps to reduce the overhead of creating and destroying database connections.

    • It maintains a pool of connections that can be reused by multiple clients.

    • Connection pooling is commonly used in web applications to handle multiple requests simultaneously.

    • It can be configured with parameters like maximum number of conn...

  • Answered by AI
  • Q3. Write a singleton class in php?
  • Ans. 

    A singleton class in PHP is a class that can only be instantiated once.

    • Create a private constructor to prevent direct instantiation

    • Create a private static variable to hold the instance of the class

    • Create a public static method to get the instance of the class

    • Ensure that the public static method always returns the same instance

  • Answered by AI
  • Q4. How to write a Connection class to MySQL database using PHP?
  • Ans. 

    To connect to MySQL database using PHP, create a Connection class.

    • Use mysqli_connect() function to establish a connection

    • Pass the database credentials as parameters to the function

    • Create a constructor method to initialize the connection

    • Create a query method to execute SQL queries

    • Close the connection using mysqli_close() method

  • Answered by AI
  • Q5. What are the different types of error in php?
  • Ans. 

    There are three types of errors in PHP: syntax errors, runtime errors, and logical errors.

    • Syntax errors occur when the code is not written correctly, such as missing semicolons or parentheses.

    • Runtime errors occur during the execution of the code, such as trying to access an undefined variable.

    • Logical errors occur when the code runs without errors, but produces unexpected results, such as a miscalculation in a formula.

  • Answered by AI
  • Q6. How session works in php?
  • Ans. 

    Session in PHP allows to store user data on the server for later use.

    • Session starts when a user logs in and ends when the user logs out or the session expires.

    • Session data is stored on the server and identified by a unique session ID.

    • Session variables can be set and accessed using the $_SESSION superglobal array.

    • Session can be destroyed using the session_destroy() function.

    • Session can be used to store user-specific dat...

  • Answered by AI
  • Q7. Find missing element in an array of elements from 0 to n-1?
  • Ans. 

    Find missing element in an array of elements from 0 to n-1

    • Calculate sum of all elements in array and subtract from sum of n natural numbers

    • Use XOR operation on all elements and n natural numbers

    • Sort the array and find the missing element

  • Answered by AI

Interview Preparation Tips

Round: Test
Experience: You have been given stack of documents that have already been processed and some that have not. your task is to classify these documents into one of the eight categories: [1,2,3..8]. However you notice that there are already large amount of documents which have already been correctly processed(training data). you decide to use machine learning on this data in order to categorize.First line of the input file contain T number of documents. T lines will follow each containing a series of space separated words which represents the processed word.

Skills: PHP, data base, data structure
College Name: NA

Skills evaluated in this interview

I was interviewed before Jan 2021.

Round 1 - Coding Test 

(2 Questions)

Round duration - 60 minutes
Round difficulty - Easy

This was a written coding test with 2 coding questions to be solved in 60 minutes.

  • Q1. 

    Find Missing Number In String Problem Statement

    You have a sequence of consecutive nonnegative integers. By appending all integers end-to-end, you formed a string S without any separators. During this pro...

  • Ans. 

    Given a string of consecutive nonnegative integers with one missing number, find the missing integer.

    • Iterate through the string to find the missing number by checking the consecutive integers.

    • If there is more than one missing number, all integers are present, or the string is invalid, return -1.

    • Handle cases where the missing number is at the beginning or end of the sequence.

    • Consider edge cases such as single-digit numb

  • Answered by AI
  • Q2. 

    First Non-Repeating Character Problem Statement

    You are given a string consisting of English alphabet characters. Your task is to identify and return the first character in the string that does not repeat...

  • Ans. 

    The task is to find the first non-repeating character in a string, or return the first character if all characters repeat.

    • Iterate through the string to count the frequency of each character

    • Find the first character with a frequency of 1, or return the first character if no such character exists

    • Handle both uppercase and lowercase characters separately

    • Use a hashmap to store character frequencies efficiently

  • Answered by AI
Round 2 - Face to Face 

(5 Questions)

Round duration - 60 minutes
Round difficulty - Medium

Technical interview round with questions around PHP and DBMS.

  • Q1. What is connection pooling?
  • Ans. 

    Connection pooling is a technique used to manage a pool of database connections to improve performance and efficiency.

    • Connection pooling reduces the overhead of opening and closing database connections for each request.

    • It allows multiple clients to reuse a pre-established set of connections to the database.

    • Connection pooling helps in improving the scalability and performance of applications by efficiently managing data...

  • Answered by AI
  • Q2. How would you create a singleton design pattern in PHP 5?
  • Ans. 

    To create a singleton design pattern in PHP 5, use a private static variable to store the instance and a static method to retrieve it.

    • Create a private static variable to store the instance of the class.

    • Create a private constructor to prevent outside instantiation of the class.

    • Create a static method to check if an instance already exists and return it, or create a new instance if it doesn't.

  • Answered by AI
  • Q3. Can you write code to connect PHP to MySQL?
  • Ans. 

    Yes, PHP can be used to connect to MySQL by using MySQLi or PDO extensions.

    • Use MySQLi extension to connect PHP to MySQL

    • Use PDO extension to connect PHP to MySQL

    • Example using MySQLi: $conn = new mysqli($servername, $username, $password, $dbname);

    • Example using PDO: $conn = new PDO('mysql:host=$servername;dbname=$dbname', $username, $password);

  • Answered by AI
  • Q4. What are the different types of errors in PHP?
  • Ans. 

    Different types of errors in PHP include syntax errors, runtime errors, and logical errors.

    • Syntax errors: Occur when there is a mistake in the code syntax, preventing the script from running.

    • Runtime errors: Happen during script execution, such as division by zero or calling a function that does not exist.

    • Logical errors: Difficult to detect as the code runs without errors, but produces incorrect results.

    • Fatal errors: St...

  • Answered by AI
  • Q5. How does session management work in PHP?
  • Ans. 

    Session management in PHP involves storing user data on the server to maintain state between multiple requests.

    • Sessions are started using session_start() function in PHP.

    • Session data is stored on the server and a unique session ID is sent to the client's browser.

    • Session variables can be set, accessed, and unset using $_SESSION superglobal array.

    • Sessions can be destroyed using session_destroy() function.

  • Answered by AI

Interview Preparation Tips

Eligibility criteriaAbove 7 CGPAQuikr interview preparation:Topics to prepare for the interview - PHP, data base, data structures, AlgorithmsTime required to prepare for the interview - 3 monthsInterview preparation tips for other job seekers

Tip 1 : Must do Previously asked Interview as well as Online Test Questions.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.

Application resume tips for other job seekers

Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.

Final outcome of the interviewRejected

Skills evaluated in this interview

I was interviewed before Jan 2021.

Round 1 - Coding Test 

(2 Questions)

Round duration - 60 minutes
Round difficulty - Easy

This was a coding test where we had to solve 2 coding questions in 60 minutes.

  • Q1. 

    Buy and Sell Stock Problem Statement

    Imagine you are Harshad Mehta's friend, and you have been given the stock prices of a particular company for the next 'N' days. You can perform up to two buy-and-sell ...

  • Ans. 

    The task is to determine the maximum profit that can be achieved by performing up to two buy-and-sell transactions on a given set of stock prices.

    • Iterate through the array of stock prices to find the maximum profit that can be achieved by buying and selling stocks.

    • Keep track of the maximum profit that can be obtained by performing up to two transactions.

    • Consider all possible combinations of buying and selling stocks to...

  • Answered by AI
  • Q2. 

    Subsequences of String Problem Statement

    You are provided with a string 'STR' that consists of lowercase English letters ranging from 'a' to 'z'. Your task is to determine all non-empty possible subsequen...

  • Ans. 

    Generate all possible subsequences of a given string.

    • Use recursion to generate all possible subsequences by including or excluding each character in the string.

    • Maintain a current index to keep track of the characters being considered.

    • Append the current character to each subsequence generated so far.

    • Recursively call the function with the next index to include the next character in subsequences.

  • Answered by AI
Round 2 - Face to Face 

(2 Questions)

Round duration - 60 minutes
Round difficulty - Easy

This was a technical round where the interviewer asked me questions related to OS and Java.

  • Q1. What is the critical section problem?
  • Ans. 

    The critical section problem is a synchronization issue in concurrent programming where multiple processes access shared resources.

    • Critical section is a code segment that accesses shared resources and must be executed by only one process at a time.

    • The goal is to prevent race conditions and ensure mutual exclusion.

    • Solutions include using locks, semaphores, and mutex to control access to critical sections.

    • Example: Multip...

  • Answered by AI
  • Q2. How can we create a thread in Java?
  • Ans. 

    A thread in Java can be created by extending the Thread class or implementing the Runnable interface.

    • Extend the Thread class and override the run() method

    • Implement the Runnable interface and provide the implementation for the run() method

    • Start the thread using the start() method

  • Answered by AI
Round 3 - HR 

Round duration - 30 minutes
Round difficulty - Easy

Typical HR round with behavioral questions.

Interview Preparation Tips

Eligibility criteriaAbove 7 CGPAQuikr interview preparation:Topics to prepare for the interview - Java, Data Structures, Algorithms, System Design,OOPSTime required to prepare for the interview - 4 monthsInterview preparation tips for other job seekers

Tip 1 : Must do Previously asked Interview as well as Online Test Questions.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.

Application resume tips for other job seekers

Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.

Final outcome of the interviewSelected

Skills evaluated in this interview

O3 Hire Interview FAQs

How many rounds are there in O3 Hire interview?
O3 Hire interview process usually has 2-3 rounds. The most common rounds in the O3 Hire interview process are HR, Resume Shortlist and Behavioral.
How to prepare for O3 Hire interview?
Go through your CV in detail and study all the technologies mentioned in your CV. Prepare at least two technologies or languages in depth if you are appearing for a technical interview at O3 Hire. The most common topics and skills that interviewers at O3 Hire expect are Sales, Marketing, Direct Sales, B2C and Banking.
What are the top questions asked in O3 Hire interview?

Some of the top questions asked at the O3 Hire interview -

  1. What is Responsibility and functions of a recruit...read more
  2. What is the process of recruiti...read more
  3. Meaning of you na...read more

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O3 Hire Interview Process

based on 7 interviews

Interview experience

3.9
  
Good
View more

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O3 Hire Reviews and Ratings

based on 88 reviews

3.8/5

Rating in categories

3.8

Skill development

3.6

Work-life balance

3.6

Salary

3.7

Job security

4.0

Company culture

3.5

Promotions

3.5

Work satisfaction

Explore 88 Reviews and Ratings
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