TCP vs UDP in Applications

[Krypt0n1te]

Hi Guys

I always start my threads with "I know very little about networking", however...I like to tinker about and learn as I go along.

Question...

How do I know whether an application sends traffic through the TCP or UDP protocol?

I am specifically curious to know whether the MT4 Trading platform is using TCP or UDP, if someone can assist or have a look I will greatly appreciate it.

MetaTrader 4 Platform for Forex Trading and Technical Analysis

MetaTrader 4 is a free-of-charge Forex trading platform. It offers wide technical analysis options, flexible trading system, algorithmic and mobile trading, Market, Virtual Hosting and Signals.

www.metatrader4.com

Feel free to laugh if I'm asking silly questions!

 

[mister]

Use TCP View

TCPView for Windows - Sysinternals

Active socket command-line viewer.

docs.microsoft.com

 

[WAslayer]

Something like that should be using TCP I would imagine.. TCP is designed, among other things, to ensure minimal data loss by means of acknowledgement packets between parties..

 

[Krypt0n1te]

Thank you very much guys. TCP it is.

 

[cguy]

Why do you want to know as a matter of interest?

 

[RandomGeek]

If your data is time-sensitive and doesn't mind getting the occasional packet drop, UDP (e.g. real-time audio or video).

If it is critical that it arrives in good order it will be TCP.

Given your use case it will most definitely be TCP