Ekart Logistics Support Engineer Interview Questions and Answers

Q1. Pagination in SQL
Ans. 
Pagination in SQL allows for displaying a subset of query results at a time.
• Use LIMIT and OFFSET clauses in SQL queries to implement pagination.

• LIMIT specifies the maximum number of rows to return.

• OFFSET specifies the number of rows to skip before starting to return rows.
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Q2. OOPS concepts.. SOILD design principles
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Q3. Thread vs task in multiprocessing.. explain with examples
Ans. 
Threads and tasks are both used in multiprocessing, but have different characteristics and use cases.
• Threads are lightweight processes within a single process, sharing memory space. They are managed by the operating system.

• Tasks are units of work that can be executed asynchronously. They are typically managed by a task scheduler.

• Threads are suitable for parallel processing and improving performance, while tasks are use...read more
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Q4. ViewBag vs Tempdata in MVC
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ViewBag is used to pass data from controller to view, while TempData is used to pass data between controller actions.
• ViewBag is a dynamic property that allows you to pass data from controller to view

• TempData is a dictionary object that allows you to pass data between controller actions

• ViewBag is not type-safe and requires typecasting, while TempData is type-safe

• ViewBag data is lost if redirection occurs, while TempData
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Q5. Abstract vs Interface
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Abstract classes can have both abstract and non-abstract methods, while interfaces can only have abstract methods.
• Abstract classes can have constructors, fields, and non-abstract methods.

• Interfaces can only have abstract methods and constants.

• A class can implement multiple interfaces but can only inherit from one abstract class.
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Q1. What is Angular
Ans. 
Angular is a popular open-source web application framework developed by Google.
• Developed by Google

• Used for building single-page web applications

• Uses TypeScript for building applications

• Supports two-way data binding

• Has a component-based architecture
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Q2. What is Data binding
Ans. 
Data binding is the process of connecting data sources to user interface elements in a software application.
• Data binding allows for automatic synchronization of data between the source and the target UI element.

• It eliminates the need for manual updating of UI elements when the data changes.

• Examples include binding a database query result to a table in a web application or binding a model property to a text box in a des
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Q1. Salary expectations
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Q2. Why u r choosing the company
Ans. 
I am choosing the company because of its reputation, innovative projects, and opportunities for growth.
• Reputation of the company in the industry

• Exciting and innovative projects the company is working on

• Opportunities for career growth and development
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It's about GD for all the people

Q1. They asked about Java technical questions
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Q1. DSA on string pattern
Ans. 
String pattern matching using Data Structures and Algorithms
• Use algorithms like KMP or Rabin-Karp for efficient string pattern matching

• Understand the concept of prefix function and how it helps in pattern matching

• Consider using dynamic programming for solving string pattern matching problems
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Q1. One coding question on DSA and about my project.
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Q1. Tell me About yourself and your weakness and strength
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Q1. Explain your biggest technical challenge and hoe did you resolve?
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Online coding test with Sql and python questions

Q1. Details about project and experience
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Q2. Pyspark and databricks questions
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Q3. What is Spark context
Ans. 
Spark context is the main entry point for Spark functionality and represents the connection to a Spark cluster.
• Main entry point for Spark functionality

• Represents connection to a Spark cluster

• Used to create RDDs, broadcast variables, and accumulators
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Q4. What is inheritance
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Inheritance is a concept in object-oriented programming where a class can inherit attributes and methods from another class.
• Allows for code reusability by creating a new class based on an existing class

• Derived class inherits properties and behaviors of the base class

• Supports the concept of polymorphism and encapsulation

• Example: Class 'Car' can inherit from class 'Vehicle' and inherit its attributes like 'color' and met
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Q5. What is sparkconfig
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SparkConfig is a configuration object used in Apache Spark to set various parameters for Spark applications.
• SparkConfig is used to set properties like application name, master URL, and other Spark settings.

• It is typically created using SparkConf class in Spark applications.

• Example: val sparkConf = new SparkConf().setAppName("MyApp").setMaster("local")
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