You need to maintain a list of usernames that can be updated by adding or removing entries at runtime. Which data structure is most suitable in C# and why?

hard🚀 Application Q8 of 15

C Sharp (C#) - Collections

AString because it can hold multiple usernames separated by commas

BArray because it has fixed size and better performance

C<code>Dictionary<int, string></code> because it stores key-value pairs

D<code>List<string></code> because it supports dynamic resizing and easy modification

Step-by-Step Solution

Solution:

Step 1: Consider dynamic updates
The list must allow adding and removing usernames dynamically.
Step 2: Evaluate options
Arrays have fixed size; Dictionary is for key-value pairs; String is not suitable for collections.
Final Answer:
List<string> because it supports dynamic resizing and easy modification -> Option D
Quick Check:
Dynamic list fits changing data [OK]

Quick Trick: Use List for dynamic collections [OK]

Common Mistakes:

MISTAKES

Choosing arrays for dynamic data
Using string to store multiple values

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More C Sharp (C#) Quizzes

You need to maintain a list of usernames that can be updated by adding or removing entries at runtime. Which data structure is most suitable in C# and why?

Step 1: Consider dynamic updates

Step 2: Evaluate options

Final Answer:

Quick Check:

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