New Delhi Television Junior Software Developer Interview Questions and Answers

Q1. C# abstraction and encapsulation
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Q2. Reflection and indexers in c#
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Reflection and indexers in C#
• Reflection allows inspecting and manipulating metadata of types, objects, and assemblies at runtime

• Indexers provide a way to access elements of a class or struct using array-like syntax

• Reflection can be used to dynamically access and invoke indexers
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Q3. Difference between ienumerable and iqueryable
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IEnumerable is read-only and forward-only while IQueryable is queryable and can be filtered.
• IEnumerable is used for in-memory collections while IQueryable is used for querying databases.

• IQueryable is more efficient for large datasets as it allows for server-side filtering.

• IQueryable extends IEnumerable and adds additional functionality for querying data sources.

• Example: IEnumerable numbers = new List { 1, 2, 3 }; IQuer...read more
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Q4. Difference between rank and dense rank in c#
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Rank assigns unique numbers to each distinct value, while dense rank assigns consecutive numbers to each distinct value.
• Rank and DenseRank are used to assign a unique number to each distinct value in a sorted list.

• Rank assigns a unique number to each distinct value, but leaves gaps for ties.

• DenseRank assigns consecutive numbers to each distinct value, without leaving gaps for ties.

• In C#, Rank and DenseRank are availabl...read more
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Q5. Difference between function and Stored procedure
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Q6. Difference between clustered and non clustered index
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Clustered index determines the physical order of data in a table, while non-clustered index has a separate structure.
• Clustered index sorts and stores the data rows in the table based on their key values, while non-clustered index has a separate structure that contains the key values and a pointer to the data row.

• A table can have only one clustered index, while it can have multiple non-clustered indexes.

• Clustered index ...read more
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Q7. Difference between execute scalar and execute nonquery
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ExecuteScalar returns single value while ExecuteNonQuery does not return any value.
• ExecuteScalar is used for retrieving a single value from the database, such as a count or sum.

• ExecuteNonQuery is used for executing SQL statements that do not return any value, such as INSERT, UPDATE, DELETE.

• ExecuteScalar returns the first column of the first row of the result set, while ExecuteNonQuery returns the number of rows affecte...read more
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Q1. - MVVM & Clean Architecture - Protocol Oriented Programming and other iOS Basics - AVFoundation, AVPlayer, DRM (Digital Right Management) - Offline Playback - Live Streaming (Linear Streaming) - Core Data...read more
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Q1. Scenario Based System Design like - Design the homepage of Zee5 - Design Player of infinite feeds
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2 Questions - 1 graph and one basic

Q1. 2 basic coding questions and questions on OS and DBMS
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Q1. HTML5 CSS3 Basics and Advanced
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Q2. Javascript Basics and Advanced
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Q1. What is functional testing
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Q2. What is agile process
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Q1. Multithreading and Concurrency
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Q1. Asked about the past experiance
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