The system will support a 4K output over HDMI -- that much isn't an issue.  The rest depends on what you're planning to display on that 4K screen. Don't count on being able to game at anything resembling reasonable frame rates on a 4K monitor attached to a system with the 1050 GPU -- that's decidedly an entry-level GPU these days, and it will force what are likely to be serious compromises in gaming at 4K. Even higher-end nVidia GPUs (3070) will be challenged at 4K for gaming.  The GTX1050 -- no way.  
Hi, I intend to buy a DELL external monitor for my DELL laptop I have a Dell G3 3579 I want to know if I can use the below DELL monitor (external) connected to my DELL laptop by HDMI cable. Of course, I want to see 4K on the external monitor (the laptop has a NVIDIA GeForce GTX 1050 (according to NVIDIA Panel), but its own monitor is 1920 x 1080) for characteristics, please see Dell S2722QC 4K Ultra HD Monitor, 27", Platinum Silver (johnlewis.com) Thank you
Compatibilty between my DELL laptop and an external DELL monitor