I am getting poke notification on Facebook. Tell me please what does it mean?

I want to understand what a subnet is, why it is used in computer networking, and how it helps in managing IP addresses and improving network performance. A simple explanation with an example would be appreciated.

Hi guys I want to add a location on VSCO post, could anyone please tell me the easiest way to do this?

I have a query mentioned above could anyone please tell me about that?

Could anyone please tell me about how can I delete repost on Instagram?

Hi friends, I want to know who has visited my profile. Is there any way to check visitors or stalker of FaceBook account?

Is there anyone who can assist me in changing the text size or text font on Discord easily?

I am noticing some of my friends has disappeared from my both following and follower list.  Mostly probably they have blocked could anyone please tell the fast process to checked who really has blocked me on Instagram?

Hello Community! Yesterday I posted query related to double check on WhatsApp today I want the clarification on single tick. Could anyone please tell me what does it exactly mean?