20+ Om Sakthi Lorry Service Interview Questions and Answers

Answering technical questions related to ASP.NET and design patterns

• The HTML control that is not programmable in ASP.NET is the control

• SaaS stands for Software as a Service, PaaS stands for Platform as a Service, and IaaS stands for Infrastructure as a Service

• Design patterns are reusable solutions to common software development problems

• Singleton is a design pattern that restricts the instantiation of a class to one object

• Multicast delegates are delegates that can have multip...read more

API Testing: Understanding different http requests and error codes

• GET request is used to retrieve data from the server

• POST request is used to submit data to the server

• PUT request is used to update existing data on the server

• PATCH request is used to partially update existing data on the server

• HTTP error codes indicate the status of the request/response

• 200 OK - successful request

• 400 Bad Request - invalid request

• 401 Unauthorized - authentication required

• 404 Not Found - requested...read more

Components of an Azure Kubernetes Service (AKS) cluster

• Master nodes

• Worker nodes

• Node pools

• Networking components (Virtual Network, Load Balancer)

• Storage components (Azure Disk, Azure Files)

• RBAC (Role-Based Access Control)

• Monitoring and logging components (Azure Monitor, Azure Log Analytics)

MVVM and VIPER are architectural patterns used in iOS development. MVVM focuses on data binding while VIPER emphasizes modularity.

• MVVM separates the view, model, and view model layers. It allows for easy testing and maintenance. Example: RxSwift library.

• VIPER separates the view, interactor, presenter, entity, and router layers. It promotes scalability and flexibility. Example: Uber app.

• MVVM advantages: easy to understand, maintain, and test. It also allows for reusability of ...read more

Build tools commonly used for Java projects include Maven, Gradle, and Ant.

• Maven is a popular build automation tool that manages dependencies and builds projects using XML configuration files.

• Gradle is another build automation tool that uses a Groovy-based DSL for defining build scripts.

• Ant is a Java-based build tool that uses XML files for configuration and is known for its flexibility.

Primary key uniquely identifies a record in a table, while unique key ensures that all values in a column are distinct.

• Primary key can't have null values, while unique key can have one null value.

• A table can have only one primary key, but multiple unique keys.

• Primary key is automatically indexed, while unique key may or may not be indexed.

Design a batch process to create and send reports

• Create a script to generate the report based on specified criteria

• Schedule the script to run at regular intervals using a batch scheduler like cron

• Configure the script to send the report via email or save it to a shared location

• Include error handling and logging in the batch process

Kubernetes architecture is a container orchestration platform that uses a master-slave architecture to manage containerized applications.

• Kubernetes has a master node that manages the cluster and worker nodes that run the applications.

• The master node has several components such as API server, etcd, scheduler, and controller manager.

• Worker nodes have kubelet, kube-proxy, and container runtime components.

• Kubernetes uses labels and selectors to group and manage containers.

• Kuberne...read more

I am highly adaptable to new environments and can quickly learn and adjust to new technologies and processes.

• I have a strong ability to learn quickly and efficiently

• I am comfortable with change and can easily adjust to new situations

• I am proactive in seeking out new information and resources to help me adapt

• I have experience working in diverse environments and with different teams

• I am open-minded and willing to try new approaches and methods

The product life cycle is the stages a product goes through from introduction to withdrawal from the market.

• Introduction stage - product is launched and promoted

• Growth stage - sales and market share increase

• Maturity stage - sales peak and competition intensifies

• Decline stage - sales decrease and product may be discontinued

• Examples: iPhone (introduction), Coca-Cola (maturity), Blackberry (decline)

To remove an element from a circular linked list, we need to update the pointers of the previous and next nodes.

• Find the node to be removed

• Update the pointers of the previous and next nodes

• Free the memory of the removed node

Code to get unique numbers from array of strings

• Convert array of strings to array of integers

• Use a Set to store unique numbers

• Convert Set back to array if needed

Test estimations can be done by breaking down the testing tasks, identifying dependencies, and using historical data.

• Break down testing tasks into smaller, manageable units

• Identify dependencies between tasks

• Use historical data to estimate time and effort

• Consider the complexity of the system being tested

• Involve the testing team in the estimation process

• Use estimation techniques such as PERT or Three-Point Estimation

• Adjust estimates based on risk and uncertainty

A test plan can be created by identifying objectives, defining scope, selecting test cases, and determining resources.

• Identify objectives and goals of testing

• Define scope and boundaries of testing

• Select test cases based on objectives and scope

• Determine resources needed for testing

• Include timelines and milestones in the plan

• Review and update the plan regularly

AWS Lambda is a serverless computing service that runs your code in response to events and automatically manages the underlying compute resources.

• AWS Lambda allows you to run code without provisioning or managing servers.

• It supports multiple programming languages including Node.js, Python, Java, and C#.

• You only pay for the compute time that you consume, with no upfront costs.

• Lambda can be used for a variety of use cases such as data processing, real-time file processing, and ...read more

We use a variety of tools including programming languages, frameworks, version control systems, and project management tools.

• Programming languages such as Java, Python, C++, etc.

• Frameworks like Spring, React, Angular, etc.

• Version control systems like Git, SVN, Mercurial, etc.

• Project management tools such as Jira, Trello, Asana, etc.

Life cycle hooks are methods that allow you to tap into the lifecycle of a component in Angular.

• ngOnInit - called after Angular has initialized all data-bound properties

• ngOnChanges - called when an input property changes

• ngOnDestroy - called before the component is destroyed

• ngAfterViewInit - called after Angular has fully initialized a component's view

UDS protocol stands for Unified Diagnostic Services protocol used in automotive industry for communication between vehicle ECUs.

• UDS protocol is used for diagnostic communication between electronic control units (ECUs) in vehicles.

• It is standardized by ISO 14229-1 and ISO 14229-2.

• UDS allows for diagnostic services such as reading and clearing diagnostic trouble codes, accessing ECU information, and performing routines like flashing ECU firmware.

• It uses a request-response mecha...read more

Performance process involves setting goals, monitoring progress, providing feedback, and evaluating results.

• Setting clear and specific performance goals for individuals or teams

• Regularly monitoring progress towards those goals

• Providing feedback on performance to help improve

• Evaluating results to determine success and areas for improvement

End-to-end life cycle management involves overseeing a project from conception to completion.

• Understand project requirements and goals

• Create a detailed project plan

• Assign tasks and responsibilities to team members

• Monitor progress and make adjustments as needed

• Ensure project is delivered on time and within budget

ASP.NET is a web development framework within the .NET platform, while .NET is a broader framework for building various types of applications.

• ASP.NET is specifically for web development, while .NET is a general-purpose framework.

• ASP.NET includes technologies like Web Forms, MVC, and Web API for building web applications.

• .NET encompasses languages like C#, VB.NET, and F# for building desktop, web, and mobile applications.

• ASP.NET is built on top of the .NET framework, utilizing...read more

Git rebase is a command used to integrate changes from one branch to another by applying them on top of the target branch.

• Rebase rewrites the project history by creating new commits for the changes.

• It is used to keep the commit history clean and linear.

• It is an alternative to merging and can be used to resolve conflicts.

• It should not be used on public branches as it can cause conflicts for other users.

• Example: git rebase feature-branch master

Spring Lifecycle is a series of steps that a Spring bean goes through from initialization to destruction.

• 1. Initialization phase: Bean is instantiated, dependencies are injected, and any initialization methods are called.

• 2. In use phase: Bean is used by the application.

• 3. Destruction phase: Bean is destroyed, any cleanup methods are called.

• 4. Post-processor phase: Additional processing can be done before or after initialization.

• 5. BeanPostProcessor interface: Allows for custo...read more

Object-oriented programming concepts like inheritance, encapsulation, polymorphism, and abstraction.

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

• Encapsulation: Bundling data and methods that operate on the data into a single unit.

• Polymorphism: Ability to present the same interface for different data types.

• Abstraction: Hiding the complex implementation details and showing only the necessary features.

DB structure refers to the organization of data in a database, including tables, relationships, and constraints.

• DB structure includes tables, columns, relationships, indexes, and constraints.

• Tables store data in rows and columns.

• Columns define the type of data that can be stored in a table.

• Relationships define how tables are connected to each other.

• Indexes improve the performance of database queries.

• Constraints enforce rules on data integrity.

• Example: In a library database, t...read more

Web API is a framework for building HTTP services that can be consumed by a variety of clients, while ASP.NET is a web application framework for building dynamic web sites, web applications, and web services.

• Web API is specifically designed for building RESTful services that can be consumed by a wide range of clients, including web browsers, mobile devices, and IoT devices.

• ASP.NET is a web application framework that provides a robust set of tools for building dynamic web site...read more