FE International Applications Engineer Interview Questions and Answers

Q1. Total 3 round was there First 2 questions from the data structure and algorithm and third round was design
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Q2. Reverse the linked list
Ans. 
Reverse a linked list
• Create three pointers: current, prev, and next

• Iterate through the linked list, updating pointers accordingly

• Set the head of the linked list to the new tail
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Q3. Diameter of binary tree
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The diameter of a binary tree is the number of nodes on the longest path between two leaves in the tree.
• The diameter of a binary tree can be calculated by finding the height of the left subtree, the height of the right subtree, and adding them together.

• The diameter may or may not pass through the root of the tree.

• Example: For the binary tree below, the diameter is 4 (nodes 1, 2, 4, 7).

• 1

• / \

• 2 3

• / \
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Q1. Explain on AWS components
Ans. 
AWS components are services provided by Amazon Web Services for cloud computing.
• Compute services like EC2, Lambda

• Storage services like S3, EBS

• Database services like RDS, DynamoDB

• Networking services like VPC, Route 53

• Management tools like CloudWatch, CloudFormation
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Q2. How does Terraform work
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Terraform is an infrastructure as code tool that allows users to define and provision data center infrastructure using a declarative configuration language.
• Terraform uses a configuration file written in HashiCorp Configuration Language (HCL) to define the desired state of infrastructure.

• It then compares the desired state with the current state of the infrastructure and creates an execution plan to reach the desired sta...read more
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Q1. Basic java springboot questions
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Q1. What is the page life cycle of asp.net?
Ans. 
The page life cycle of ASP.NET is the series of events that occur when a page is requested, processed, and rendered.
• Init: Page properties are set and controls are initialized.

• Load: Page loads data and controls are rendered.

• Postback event handling: User interacts with controls and triggers events.

• Render: Page is rendered as HTML and sent to the client.

• Unload: Page is unloaded and resources are released.
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Q2. Tell about sessions in ASP.Net
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Sessions in ASP.Net are used to store user-specific data across multiple pages during a user's visit to a website.
• Sessions are used to store user-specific data such as user preferences, shopping cart items, etc.

• Sessions are stored on the server and identified by a unique session ID.

• Sessions can be accessed and manipulated using the Session object in ASP.Net.

• Sessions can be configured in the web.config file to specify s
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Q3. Extention Methods
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Q4. Tell me about the Page Load.
Ans. 
Page Load refers to the time it takes for a webpage to fully load in a browser.
• Page Load time is crucial for user experience and can impact bounce rates.

• Factors affecting Page Load include server response time, file sizes, and browser caching.

• Optimizing images, minifying CSS/JS files, and using content delivery networks can improve Page Load speed.
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Q1. Tell me about your self
Ans. 
I am a highly motivated Applications Engineer with a strong background in software development and problem-solving skills.
• Experienced in developing and implementing software solutions for various applications

• Skilled in troubleshooting and resolving technical issues

• Strong communication and collaboration skills

• Proficient in programming languages such as Java, C++, and Python
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Q2. Opps concept in c#
Ans. 
Encapsulation, Inheritance, Polymorphism - fundamental principles in C# programming
• Encapsulation: bundling data and methods that operate on the data into a single unit

• Inheritance: allows a class to inherit properties and behavior from another class

• Polymorphism: ability for objects of different classes to respond to the same method call
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There will be 5 rounds

All the round were mainly focused on the leadership priciples and technical skills
Each round will be carried for 1hr
You should be proefficeint with AWS and devops concepts like CI/CD

This round consist of 2 question mainly focused on DSA concepts like Array and Strings

Here also you will be asked to solve 2 DSA questions form medium to hard level

Q1. Your work-experience and projects
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Q2. Questions based on your project , mainly to check the leaderships principles
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Dynamic Programming, Greedy Algorithm