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UKG Interview Questions and Answers
79 Interview questions
I optimized a slow SQL query by analyzing execution plans and indexing key columns, resulting in a significant performance boost.
Identified slow query using monitoring tools like SQL Profiler.
Analyzed the execution plan to find bottlenecks, such as table scans.
Added indexes on frequently queried columns, improving lookup speed.
Rewrote the query to use JOINs instead of subqueries for better performance.
Tested the o...
I collaborated with a team to identify and resolve issues in a failing ETL pipeline, ensuring data integrity and timely delivery.
Identified the failure point in the ETL pipeline by analyzing logs and error messages.
Collaborated with data engineers to review the transformation logic that was causing data discrepancies.
Implemented a temporary fix to reroute data while a permanent solution was developed.
Conducted a r...
I have extensive experience working with large datasets in various projects.
Worked with large datasets in previous roles
Utilized tools like SQL, Python, and R for data analysis
Performed data cleaning, transformation, and visualization on large datasets
Built predictive models using big data
An automation framework is a set of guidelines, rules, and tools used for automated testing of software applications.
Automation frameworks provide a structured way to automate testing processes, making it easier to write and maintain test scripts.
They help in reducing manual intervention, increasing test coverage, and improving the efficiency of the testing process.
Examples of automation frameworks include Seleniu...
Use a stack to check if a string is balanced without push and pop methods.
Create an empty array to act as a stack
Iterate through each character in the string
If the character is an opening bracket, add it to the stack
If the character is a closing bracket, check if the stack is empty or the top element is not the corresponding opening bracket
If the stack is empty or the top element does not match, the string is not ...
Use the jugs to measure out a specific amount of water by filling and pouring between the jugs.
Fill the largest jug and pour into the other jugs to measure out specific amounts.
Use the jugs to transfer water back and forth until you have the desired amount in one of the jugs.
Repeat the process of filling and pouring until you have the correct amount of water in one of the jugs.
Indexing in DBMS is a technique used to improve the performance of queries by allowing faster retrieval of data.
Indexes are data structures that store a small portion of the data set in an easily searchable format.
They help in speeding up the data retrieval process by reducing the number of disk accesses needed.
Indexes can be created on one or more columns of a table to improve the performance of SELECT queries.
Ex...
To delete an entry in MongoDB database, you can use the deleteOne() or deleteMany() methods.
Use deleteOne() method to delete a single document based on a specific condition
Use deleteMany() method to delete multiple documents based on a specific condition
Make sure to specify the filter criteria to accurately delete the desired entry
Reverse a linked list by changing the direction of pointers.
Start with three pointers: current, previous, and next.
Iterate through the linked list, updating pointers to reverse the direction.
Return the new head of the reversed linked list.
HashMap is a data structure that stores key-value pairs and uses hashing to quickly retrieve values based on keys.
HashMap internally uses an array of linked lists to store key-value pairs.
When a key-value pair is added, the key is hashed to determine the index in the array where it will be stored.
If multiple keys hash to the same index, a linked list is used to handle collisions.
Retrieving a value involves hashing...
UKG Interview Experiences
111 interviews found
Yanet Diaz
(5 Questions)
- Q1. Talk me about you
- Ans.
Experienced Integration Consultant with strong technical skills and a passion for problem-solving.
Over 5 years of experience in designing and implementing integration solutions
Proficient in various integration technologies such as MuleSoft, Dell Boomi, and API management tools
Strong analytical and problem-solving skills, with a track record of delivering successful projects on time
Excellent communication and collaborat...
- Q2. Tell me what your major situation facing in a project.
- Ans.
The major situation facing in a project was a critical system outage affecting multiple integrations.
The outage caused delays in data processing and impacted business operations.
We had to quickly identify the root cause and implement a temporary workaround to minimize downtime.
Communication with stakeholders and managing expectations was crucial during this crisis.
Regular updates and progress reports were provided to k...
- Q3. Have you heard of us?
- Ans.
Yes, I have heard of your company.
I have researched your company online and read about your services.
I have seen job postings and news articles mentioning your company.
I have spoken to current or former employees who have mentioned your company.
- Q4. What are your weaknesses?
- Ans.
I tend to be overly critical of my own work, which can sometimes lead to perfectionism.
I have a tendency to take on too much work at once
I struggle with delegating tasks to others
I can be overly self-critical and strive for perfection
- Q5. What are your ways of learning?
- Ans.
I learn through hands-on experience, online courses, reading technical documentation, and collaborating with colleagues.
Hands-on experience with real-world projects
Online courses and tutorials on relevant topics
Reading technical documentation and manuals
Collaborating with colleagues and sharing knowledge
Anonymous
Selected
I appeared for an interview in Apr 2025, where I was asked the following questions.
- Q1. Can you walk me through one of your project?
- Ans. Here interviewers are looking to understand: • How you approach design problems • Your thinking and process • The impact of your work • How you collaborate with others • Your storytelling skills 1. Pick the Right Project • You’re confident and proud of • Has measurable impact or learnings • Involves a complete UX process (research → design → testing → iteration). Tip: If you’re interviewing for a senior role,...
- Q2. Why did you take certain design decisions in that project?
- Q3. What is your design process like?
- Q4. How do you collaborate with PMs and engineers in your day to day design life?
- Q5. Tell me about a scenario where you, as a designer and a developer, wouldn't agree on the same design decision.
Interview Preparation Tips
(1 Question)
- Q1. What is an automation framework, and how is it used in software development?
- Ans.
An automation framework is a set of guidelines, rules, and tools used for automated testing of software applications.
Automation frameworks provide a structured way to automate testing processes, making it easier to write and maintain test scripts.
They help in reducing manual intervention, increasing test coverage, and improving the efficiency of the testing process.
Examples of automation frameworks include Selenium, Ap...
(1 Question)
- Q1. What is the program for checking whether a string is balanced or not, without using push and pop methods?
- Ans.
Use a stack to check if a string is balanced without push and pop methods.
Create an empty array to act as a stack
Iterate through each character in the string
If the character is an opening bracket, add it to the stack
If the character is a closing bracket, check if the stack is empty or the top element is not the corresponding opening bracket
If the stack is empty or the top element does not match, the string is not balan...
(1 Question)
- Q1. General discussion jobs realated.
preeti parmar
Selected
I applied via Campus Placement
Question related to operating system and computer network
(1 Question)
- Q1. Traverse all child nodes in tree
- Ans.
Traverse all child nodes in a tree data structure
Use depth-first or breadth-first traversal algorithms
Recursively visit each child node starting from the root node
Consider using a stack or queue data structure for traversal
Example: Traverse all nodes in a binary tree
(1 Question)
- Q1. Question related to cloud and oops
(1 Question)
- Q1. Question related to my background and how web site work
Selected
(1 Question)
- Q1. Reverse the linked list.
- Ans.
Reverse a linked list by changing the direction of pointers.
Start with three pointers: current, previous, and next.
Iterate through the linked list, updating pointers to reverse the direction.
Return the new head of the reversed linked list.
(1 Question)
- Q1. Internel working of Hashmap
- Ans.
HashMap is a data structure that stores key-value pairs and uses hashing to quickly retrieve values based on keys.
HashMap internally uses an array of linked lists to store key-value pairs.
When a key-value pair is added, the key is hashed to determine the index in the array where it will be stored.
If multiple keys hash to the same index, a linked list is used to handle collisions.
Retrieving a value involves hashing the ...
(1 Question)
- Q1. Salary Discussion
I applied via Campus Placement and was interviewed in Jun 2024. There were 4 interview rounds.
Hacker rank mcq medium to hard level 1 hr duration
(3 Questions)
- Q1. Oops , diff composition and inheritance
- Ans.
Composition and inheritance are two fundamental concepts in OOP, defining relationships between classes.
Inheritance allows a class to inherit properties and methods from another class, promoting code reuse. Example: class Dog extends Animal.
Composition involves building classes using references to other classes, allowing for flexible and dynamic relationships. Example: class Car has Engine.
Inheritance creates an 'is-a'...
- Q2. Design pattern explain singleton , abstract factory
- Ans.
Singleton ensures a class has only one instance, while Abstract Factory provides an interface for creating families of related objects.
Singleton pattern restricts the instantiation of a class to one object, ensuring there is only one instance of the class.
Abstract Factory pattern provides an interface to create families of related or dependent objects without specifying their concrete classes.
Singleton pattern can be i...
- Q3. Implement linked list , all combination string in python
- Ans.
Implement linked list and generate all combination strings in Python.
Create a Node class to represent each element in the linked list.
Implement methods to add nodes, delete nodes, and generate all combinations of strings.
Use recursion to generate all combinations of strings.
(2 Questions)
- Q1. Introduction about my skills and projects
- Q2. Situation based question on my projects , talk about security and performance in my projects
(2 Questions)
- Q1. Introduction about me and my family members
- Ans.
I'm a passionate software developer with a love for coding and a supportive family that inspires my creativity.
I have a degree in Computer Science and have worked on various projects, including a mobile app for local businesses.
In my free time, I enjoy contributing to open-source projects, which helps me stay updated with the latest technologies.
My family is very supportive; my partner often helps me brainstorm ideas f...
- Q2. Relocation comfortable , about my friends who are placed , why many people from my college
Interview Preparation Tips
Skills evaluated in this interview
I applied via Campus Placement and was interviewed in Jul 2024. There were 2 interview rounds.
The coding test consists of multiple-choice questions and one medium-hard level coding question.
(5 Questions)
- Q1. Given three jugs with different capacities and no measuring tools, how can you measure out a specific amount of water using the jugs you have?
- Q2. What is the angle between the minute and hour hand of a clock at 3:45?
- Ans.
The angle between the minute and hour hand of a clock at 3:45 is 157.5 degrees.
Calculate the angle formed by the hour hand from 12 o'clock position to 3:45 position (135 degrees)
Calculate the angle formed by the minute hand from 12 o'clock position to 3:45 position (22.5 degrees)
Subtract the smaller angle from the larger angle to get the angle between the two hands (157.5 degrees)
- Q3. What is indexing in Database Management Systems (DBMS)?
- Ans.
Indexing in DBMS is a technique used to improve the performance of queries by allowing faster retrieval of data.
Indexes are data structures that store a small portion of the data set in an easily searchable format.
They help in speeding up the data retrieval process by reducing the number of disk accesses needed.
Indexes can be created on one or more columns of a table to improve the performance of SELECT queries.
Example...
- Q4. What is the lifecycle of a React component?
- Ans.
The lifecycle of a React component includes mounting, updating, and unmounting phases.
Mounting phase: constructor, render, componentDidMount
Updating phase: shouldComponentUpdate, render, componentDidUpdate
Unmounting phase: componentWillUnmount
- Q5. How you delete entry in mongodb database
I applied via Naukri.com and was interviewed in Aug 2024. There was 1 interview round.
(5 Questions)
- Q1. Design a efficiënte db read
- Ans.
Efficient database read design
Use indexing to quickly locate data
Minimize the number of reads by fetching only necessary columns
Consider denormalizing data for faster reads
Implement caching mechanisms to reduce database load
Optimize queries by avoiding unnecessary joins
- Q2. Exception handling
- Q3. Customruntime exception
- Q4. Design abstract factory
- Ans.
Abstract Factory pattern provides an interface for creating families of related objects without specifying their concrete classes.
Encapsulates a group of individual factories that have a common theme.
Example: A GUI toolkit can have factories for creating buttons and text fields for different operating systems.
Promotes loose coupling by allowing the client to work with interfaces rather than concrete classes.
Example: A ...
- Q5. Design a system to read the data efficiently without iterating on record repeatedly
- Ans.
Use indexing to access data directly without iterating
Implement a database with proper indexing on key fields
Utilize data structures like hash tables or binary search trees for quick access
Consider using caching mechanisms to store frequently accessed data
Optimize queries by using efficient algorithms like merge sort or quicksort
Interview Preparation Tips
Skills evaluated in this interview
Selected
Hacker rank exam, 2 DSA coding questions
(2 Questions)
- Q1. Backend questions on spring boot
- Q2. Angular routing and service
(2 Questions)
- Q1. Cultural fit question
- Q2. And prior job experience and mental ability test
Selected
I appeared for an interview in Aug 2024.
(2 Questions)
- Q1. Basics of US Payroll and about taxes in different states with their rates.
- Q2. Garnishments basic and employee's leaves and pto exceptions.
- Ans.
Garnishments are deductions from an employee's wages to satisfy a debt or legal obligation. Leaves and PTO exceptions refer to situations where garnishments may not apply.
Garnishments are court-ordered deductions from an employee's wages to pay off debts such as child support or tax obligations.
Employee leaves and PTO exceptions may impact garnishment calculations, as the employee may not be receiving their full wages ...
(2 Questions)
- Q1. Briefing about self and worked experience
- Q2. Psychological questions, personality test by senior manager.
Interview Preparation Tips
I applied via Naukri.com and was interviewed in May 2024. There was 1 interview round.
(3 Questions)
- Q1. The interviewer is from testing panel how the testing panel can take a developer interview they don’t have any knowledge about java worst interviewer in my life they waste my 1hour. after answer all the qu...
- Q2. What is encapsulation. Protected and default difference i have to explain her with example. Collection and hashmap i explain all the things in hashmap even the implementation After that she said to write ...
- Q3. She asked me about helm chart and aws.I did answer according to it. My interview was pretty well but very next day what i got to know from HR that my basic was not clear that’s very very unprofessional beh...
Interview Preparation Tips
- Basic Java
- Coding
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UKG Interviews By Designations
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