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I think the question doesn't really fall off-topic because it doesn't ask how an application layer protocol works, or how an application is configured to use it. It may have been a question better as …

It's an interesting question, and it would be a good discussion (Network Engineering is clearly not a discussion site), elsewhere (such as chat), but this is dealing with the layers above what the community …

I could actually go either way on that one. It is a routing table of sorts, although it is an end-device, but the question didn't involve configuring it.

Configuring DHCP servers is certainly off-topic, although configuring DHCP in routers has been allowed, but a discussion of how the protocol works probably should be allowed. …

I voted to close the question because what your ISP does is not under your control. What you do on your network in response to the ISP is under your control, but your contract negotiations and pricing …

I thinks it's off-topic because the primary question is about the consumer-grade router in a home network (see this answer: https://networkengineering.meta.stackexchange.com/a/234/8499 and the one whi …

That question is answered in the Calculating subnets section in the answer by Mike Penningtion. The answer discusses borrowing bits from the host bits, and it gives the formula for calculating the nec …

Actually, questions about "historical trivia that does not allow for a concise and non-subjective answer or is trivial/irrelevant to modern networking" are off-topic on Network Engineering, but this i …

What you wrote in your question here: Then why not keep the window size at max 65535 or a large value? doesn't match the original question: Then why not Windows OS always keep the window siz …

You wrote that this is for an exam revision, and that makes it an education question. As it says in What topics can I ask about here?: Network Engineering Stack Exchange is for asking questions a …

Network Engineering supports questions about network protocols which are not above OSI layer-4. The protocols you mention about are applications or application-layer protocols. If you ask about those …

The port number is not the protocol. In both cases in the question, the layer-4 protocol is TCP. The application-layer protocols in question (HTTP and HTTPS) are above OSI layer-4, and that means they …

As I wrote in the comment to your question, you could try to ask the question on Hardware Recommendations. As far as I know, Hardware Recommendations and Software Recommendations are the only SE site …

The community standards change. At the time this site started, the requirement for vendor support of the hardware wasn't in place. There are some questions and answers on the site that no longer meet …

You do not use comments to ask a new question. You need to start a new question to ask your question. You can refer to the original question in your question.