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All Questions

Tagged with
2 votes
2 answers
1k views

Where can caching happen in the DNS hierarchy and how are queries forwarded?

For a hostname to resolve into its IP address, there are several DNS servers that may be queried. Assuming caching doesn't happen, it goes from whoever made the request (the client), the recursive DNS,...
northerner's user avatar
  • 1,513
2 votes
1 answer
71 views

What exactly is Network as a Service?

I've red a few articles, including the Wikipedia one, and it's not clear to me how networking can be done in the cloud. By definition the cloud is offsite so you would need at least an internet ...
northerner's user avatar
  • 1,513
8 votes
2 answers
3k views

Is there a difference between the terms "inbound", "incoming", and "ingress"?

I see often those three terms (and even some others, but I do not remember them for now) used when it's about talking about a network interface or a network flow. Are those three interchangeable, or ...
Ailothaen's user avatar
8 votes
1 answer
433 views

Why traceroute on Windows is named tracert - book that I am reading is claiming that there is some historical context

The book called "UNIX and Linux System Administration Handbook, 5th Edition" on a page about traceroute, in the footnote is saying that "Windows have it's own version, named tracert (special points on ...
Learner's user avatar
  • 337
2 votes
1 answer
2k views

Is DNS a directory service or directory lookup service?

I really confuse these two terms, I've seen that DNS is NOT a directory service But while I was reading about it in some textbook it mentioned that DNS is a "Directory lookup service" Can anyone ...
Hossam Houssien's user avatar
321 votes
5 answers
213k views

What does the "Fi" in "Wi-Fi" mean?

I just got into a heated discussion about Wi-Fi. What does the Fi in Wi-Fi mean? I would have thought potentially "frequency interface" since all network adapters are classified as interfaces. However ...
NotAdmin Dave's user avatar
1 vote
1 answer
1k views

Are "PAN" (Personal Area Network) and "ad-hoc network" two terms for the same thing?

When searching the Internet for help solving various issues involving networking my devices via Bluetooth and/or Wi-Fi it seems that the terms "ad-hoc network" and "personal area network" (PAN) are ...
hippietrail's user avatar
  • 4,593
2 votes
2 answers
13k views

What exactly is a “network boundary?”

The term “network boundary” is used in various Wikipedia articles and other sources, but I haven’t found an explicit definition anywhere. (Google, Stack Exchange, OneLook, Tech Terms Computer ...
Wildcard's user avatar
  • 590
4 votes
1 answer
23k views

Why is the FIN flag in TCP called FIN?

There are some flags in TCP. I already understand what other flag names come from, such as SYN stands for synchronization. I also know that FIN is used to close a connection. What I don't understand ...
user4098326's user avatar
0 votes
2 answers
127 views

What is a general term to describe total units transferred?

I've been seeing the term "bandwidth" abused in recent years, especially by telecommunications companies. People refer to transfer caps as "bandwidth caps", but bandwidth describes a rate not a ...
void.pointer's user avatar
  • 1,897
0 votes
2 answers
114 views

How to call something between a bridge and a router?

A proper router: Different IP subnetworks each sides; Sends packets from single MAC address; Does not require promiscuous mode; Broadcasts are not usually propogated; Maintains table of IP-MAC ...
Vi.'s user avatar
  • 17.3k
1 vote
3 answers
79 views

What's the correct term for this network connection? [closed]

What is the correct general term for the network connection on mobile devices that can connect to networks via telecoms links? Question asked "my device is not connecting to my local web server here"....
Preet Sangha's user avatar
  • 1,143
8 votes
4 answers
7k views

What is a router? What is a switch? and What is a hub?

I always mess up with the basic concepts in networking. This are the very basic questions. What is a router, its functions and what is meant by routing? What is a switch, its functions? Many time I ...
narayanpatra's user avatar
2 votes
3 answers
2k views

What is a network segment?

Can anyone explain exactly what a network segment is? For example, is my PC a network segment? And my modem or router?
wantStudy's user avatar
4 votes
2 answers
741 views

What exactly is a proxy?

What does a proxy do and how is it related to getting out of my network to the outside network?
ojblass's user avatar
  • 193

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