Aon Senior Configuration Analyst Interview Questions and Answers

Q1. C++, com component, oops concept
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Q2. General interview questions on knowledge.
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Q1. CompletableFuture VS Future
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CompletableFuture is an enhanced version of Future in Java that provides more flexibility and functionality.
• CompletableFuture is part of the Java 8 concurrency framework.

• It allows chaining of multiple asynchronous operations.

• CompletableFuture can be explicitly completed or cancelled.

• It supports callbacks and combinators for handling completion.

• Future is a basic interface for representing the result of an asynchronous c...read more
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Q2. ConcurrentHashmap
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Q3. Composition Vs inheritance
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Composition is a design principle where objects are composed of other objects, while inheritance is a mechanism where objects inherit properties and behaviors from a parent object.
• Composition promotes code reusability and flexibility by allowing objects to be composed of other objects.

• Inheritance allows objects to inherit properties and behaviors from a parent object, promoting code reuse.

• Composition is more flexible t...read more
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Q4. Spring boot, microservices, Design patterns
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Q1. Parallel Calls in java
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Parallel calls in Java allow multiple tasks to be executed simultaneously, improving performance.
• Parallel calls can be achieved using threads or the Executor framework.

• Threads allow concurrent execution of tasks, but require manual management of synchronization and resource sharing.

• The Executor framework provides higher-level abstractions for managing parallel tasks, such as thread pools and task scheduling.

• Example: us...read more
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Q2. Lock Vs Sync Block
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Lock and Sync Block are mechanisms used for thread synchronization in multi-threaded programming.
• Lock is a low-level synchronization mechanism that provides exclusive access to a shared resource.

• Sync Block is a higher-level synchronization mechanism that allows multiple threads to access a shared resource concurrently.

• Lock is more flexible and can be used in various scenarios, but it requires explicit acquisition and r...read more
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Q3. Hsshmap internal working , Checked Exception
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Three sections (minimum two to be completed)-Aptitude, Case Solving and Machine Learning.

What do you know about Amex?

First case - you have data about the users of IRCTC app - login time, usage time, clicks, services, demographics etc.

IRCTC wants to launch air tickets booking service on the app and for this they will first show a pop up advertisement to inform their existing users about this service. Tell the parameters or criteria's to clean the data to come up with the target group to whom they will show this ad and are guaranteed to use this new service.

You have mentioned photography as your hobby. I know there is already a photography club in the campus but suppose you want to come up with a new but niche club only for select users who have high experience.

Suppose you have a genie, who can get you any database from any source which could be of help to you. With those data points overlapping over one another, you will eventually come up with a new data of users who are most likely to join your club. Tell me from what sort and type of data you will ask him to fetch and why? What information are you exactly searching for through those?

Q1. You're from Faridabad? So I want you to tell me the number of autorickshaws running in Faridabad in a day.
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Q2. So now you have come up with the supply of autorickshaws. Now tell me what is the actual demand of these autorickshaws and see if the number is matching with supply or not. Had it been a different product,...read more
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To determine if supply of autorickshaws matches demand, we need to conduct market research and analyze data. Approach for a different product would depend on the nature of the product.
• Conduct market research to determine the demand for autorickshaws

• Analyze data to compare demand with supply

• If demand is higher than supply, increase production or import more autorickshaws

• If demand is lower than supply, decrease productio...read more
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Phycometric test in round 1

Q1. Self introduction
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Q2. Strengths and weakness
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Q3. What is your long term goal
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Q1. Profile summary
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Q2. Previous experience
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Q3. Capital markets
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Q4. Financial instruments
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Q5. What are the challenges you faced in previous job
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Q6. Any appreciations or achievements in previous job?
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