Google, Amazon, Facebook, and Apple CEO will testify in the US Congress on July 29 in a hearing on anti-competitive practices.

CEOs of the world's largest technology companies will be questioned amid growing complaints about their companies' dominance and calls by some politicians and activists to split these firms.

Amid the pandemic, Jeff Bezos (Amazon), Tim Cook (Apple), Mark Zuckerberg (Facebook), and Sundar Pichai (Alphabet, parent company of Google and YouTube) can attend the online hearing if they choose.

It will be Bezos' first appearance in Congress.