When a TCP connection first starts, why does TCP use slow start instead of immediately sending at a high rate?

You’re building a file-sync application that must deliver every byte correctly, in the right order, and should automatically recover from packet loss without the application re-implementing reliability. Which transport protocol is the best choice?

Two routers enforce the same rate limit for a video stream. Router X causes occasional packet loss during bursts, while Router Y causes bursts to arrive but with extra delay/jitter. Which statement best explains the difference?    

The router data plane is primarily responsible for:    

In the customer–provider–peer model, which relationship typically means you get paid to carry traffic?

Which statement best describes encapsulation?  

What is a key reason NAT violates end-to-end connectivity?

When using a doubling strategy for a dynamic array, a single insertion might take O(n) time due to resizing. However, what is the amortized time complexity of a sequence of n insertions, and why?

What do the transport proteins known as channels serve to transport across the cell membrane?

The sodium-potassium pump uses __ as the immediate source of energy.