30+ Eximio Services & Solutions Interview Questions and Answers

Find the length of the longest palindromic subsequence in a given string.

• Use dynamic programming to solve this problem efficiently.

• Create a 2D array to store the lengths of palindromic subsequences for different substrings.

• Fill the array diagonally based on the characters of the string.

• Consider both the cases where the characters at the start and end of the substring match or not.

• Return the length of the longest palindromic subsequence for the entire string.

Find the maximum sum of non-adjacent nodes in a binary tree.

• Use dynamic programming to keep track of the maximum sum at each node considering whether to include or exclude the current node.

• Recursively traverse the binary tree while keeping track of the maximum sum of non-adjacent nodes.

• Consider the scenarios where the current node is included in the sum or excluded from the sum.

• Handle cases where the current node has children and decide whether to include them in the sum or n...read more

Implement a function to determine the total number of ways to make change for a specified value using given denominations.

• Use dynamic programming to keep track of the number of ways to make change for each value up to the target value.

• Iterate through each denomination and update the number of ways to make change for each value based on the current denomination.

• Return the total number of ways to make change for the target value.

• Example: For N = 3, D = [1, 2, 3], V = 4, the out...read more

I would investigate the cause of the failure and take appropriate actions to resolve it.

• Check the error logs to identify the root cause of the failure

• Determine if the issue can be resolved by restarting the batch or if a code fix is required

• Communicate the issue and resolution plan to relevant stakeholders

• Implement the fix and re-run the batch

• Perform post-mortem analysis to identify ways to prevent similar failures in the future

Test Analyst interview questions on wait types, parsing, Maven, SQL, Python, and database connectivity and exceptions.

• Explicit wait waits for a specific condition to be met, while implicit wait waits for a certain amount of time before throwing an exception

• Stale exceptions occur when an element is no longer attached to the DOM, can be handled by refreshing the page or finding the element again

• XML parsing involves reading and interpreting XML data, while JSON parsing involves ...read more

Serialization is the process of converting an object into a stream of bytes to store or transmit data.

• Serialization is used to save the state of an object and recreate it when needed.

• In Java, serialization is achieved by implementing the Serializable interface.

• Example: ObjectOutputStream and ObjectInputStream classes are used for serialization in Java.

To convince an irate customer on call, empathy, active listening, problem-solving skills, and offering appropriate solutions are needed.

• Show empathy and understanding towards the customer's frustration.

• Listen actively to the customer's concerns and let them vent their frustrations.

• Apologize for any inconvenience caused and take responsibility for resolving the issue.

• Offer appropriate solutions or alternatives to address the customer's problem.

• Provide clear and concise explana...read more

Left outer join is a type of join operation that returns all records from the left table and the matched records from the right table.

• Left outer join combines rows from two tables based on a related column between them.

• It includes all the rows from the left table, even if there are no matches in the right table.

• Example: SELECT * FROM table1 LEFT JOIN table2 ON table1.id = table2.id;

Project timeline can be decided based on project scope, resources, team size, complexity, and risk factors.

• Define project scope and deliverables

• Assess available resources and team size

• Consider project complexity and risk factors

• Create a detailed project plan with milestones and deadlines

• Regularly review and adjust the timeline as needed

Normalization is the process of organizing data in a database to reduce redundancy and improve data integrity.

• Normalization involves breaking down data into smaller, more manageable tables

• It helps in reducing data redundancy by eliminating duplicate data

• Normalization improves data integrity by ensuring that each piece of data is stored in only one place

• There are different levels of normalization, such as First Normal Form (1NF), Second Normal Form (2NF), and Third Normal Form...read more

Joins are used in databases to combine rows from two or more tables based on a related column between them.

• Joins are used to retrieve data from multiple tables based on a related column.

• Common types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN.

• INNER JOIN returns rows when there is at least one match in both tables.

• LEFT JOIN returns all rows from the left table and the matched rows from the right table.

• RIGHT JOIN returns all rows from the right table and t...read more

I have worked with various tools including Java, Python, SQL, Git, and JIRA.

• Proficient in Java programming language

• Experience with Python scripting

• Skilled in writing SQL queries

• Familiar with Git version control system

• Knowledgeable in using JIRA for project management

Jira Story is a feature or functionality that needs to be developed and delivered in an Agile project using Jira software.

• Jira Story is a user story that describes a feature or functionality from the user's perspective.

• It is written in a specific format, including a title, description, acceptance criteria, and estimation points.

• Jira Story is used to track the progress of the development team and ensure that the project is on track.

• It is an essential part of the Agile methodol...read more

DI and IoC are design patterns used in Spring Boot to achieve loose coupling and improve testability.

• DI (Dependency Injection) is a design pattern where the dependencies of a class are injected from the outside rather than created within the class itself.

• IoC (Inversion of Control) is a design principle where the control of object creation and lifecycle is inverted from the class to an external entity.

• Spring Boot uses DI and IoC to manage dependencies and improve modularity an...read more

I am proficient in PowerPoint and have experience creating professional presentations.

• I have used PowerPoint extensively in my previous roles to create presentations for clients and internal stakeholders.

• I am comfortable with creating custom templates, formatting slides, and adding multimedia elements.

• I have also trained colleagues on how to use PowerPoint effectively.

• I am always looking for ways to improve my skills and stay up-to-date with the latest features and trends in ...read more

A constraint is a rule or limitation that must be followed in a system or process.

• Constraints restrict the actions or behaviors of users or systems.

• Constraints can be related to data validation, business rules, or system limitations.

• Examples of constraints include password length requirements, maximum file size limits, and budget constraints.

RPA stands for Robotic Process Automation.

• RPA is a technology that uses software robots to automate repetitive tasks.

• It can be used to automate tasks such as data entry, invoice processing, and customer service.

• RPA can help increase efficiency, reduce errors, and free up employees to focus on more complex tasks.

• Popular RPA tools include UiPath, Automation Anywhere, and Blue Prism.

A sub-query is a query nested within another query in SQL to retrieve data from multiple tables.

• Used to retrieve data from multiple tables

• Can be used in SELECT, INSERT, UPDATE, or DELETE statements

• Must be enclosed in parentheses

Designing an elevator system for a multiple story building involves considering factors like capacity, speed, safety features, and energy efficiency.

• Consider the number of floors in the building to determine the capacity and speed requirements of the elevator.

• Incorporate safety features such as emergency stop buttons, sensors to prevent door closing on passengers, and backup power supply.

• Opt for energy-efficient components like LED lighting, regenerative drives, and standby m...read more

Exceptions are unexpected events that occur during the execution of a program, disrupting the normal flow of the program.

• Exceptions are used to handle errors and other exceptional conditions in a program.

• They allow the program to respond to unexpected situations and prevent the program from crashing.

• Examples of exceptions include division by zero, file not found, and out-of-memory errors.

I have extensive experience in testing various software applications and have consistently delivered high-quality results.

• I have worked on multiple projects and have gained expertise in manual and automation testing.

• I have a strong understanding of testing methodologies and have implemented them effectively.

• I have collaborated with cross-functional teams to identify and resolve issues, ensuring timely delivery of projects.

• I have received positive feedback from clients and sta...read more

Using Java8, reverse a string by converting it to a character array, using the Stream API, and collecting the characters in reverse order.

• Convert the string to a character array using toCharArray() method

• Use the Stream API to create a stream of characters

• Collect the characters in reverse order using Collectors.joining() method

Mutual funds are investment vehicles that pool money from multiple investors to invest in a diversified portfolio of stocks, bonds, or other securities.

• Mutual funds are managed by professional fund managers who make investment decisions on behalf of the investors.

• Investors can buy shares of mutual funds, which represent their ownership in the fund's portfolio.

• Mutual funds offer diversification, liquidity, and professional management to investors.

• There are different types of m...read more