Easy C# Question 9 of 215

How is var different from dynamic?

.NET / C# · Speak this in 60–90 seconds · Faridabad & Delhi NCR

IdeaC#

HowWhat happens inside

Why they askShows real use

Var is still statically typed

Why interviewers care about C#:

C# questions separate people

who only read docs from people who shipped.

Keep it short, concrete,

and tied to .NET work.

Stay structured

Name the idea, why it exists, then one short example.

Close cleanly

End with when you use it and one common pitfall.

Before you speak the answer, walk the interviewer through these steps:

1
Define it
Var is still statically typed
2
the compiler infers the
type at compile time.
3
Dynamic skips compile-time checks
and resolves members at runtime, which can throw if the shape is wrong.
4
I default to var
for readability and use dynamic only for COM or truly unknown JSON.
5
Common mistake
What juniors usually get wrong.
6
Close
When you pick this over the alternative.

Here's a short line you can speak, broken into clear beats:

Say this line

“Dynamic skips compile-time checks and resolves members at runtime, which can thr”

Break into beats

Dynamicskipscompiletimechecksand

Speaking order

2987408337471632900

Note: Adapt this scaffold to your own project — keep it under 60–90 seconds.

Var is still statically typed the compiler infers the type at compile time.