A nurse jumps into the IT industry! Network terminology explanation

Hello!
I'm Inoue, a Persian cat from Beyond Co., Ltd.'s Shikoku office.

I jumped into the IT industry, a different industry, with no prior experience, and
as a first step I would like to write about the network-related IT terms I learned, along with explanations, on my blog.

For starters, there are a lot of terms that are abbreviated into alphabetical order.
I'd heard them before, but never really thought about their exact meanings.
In fact, there are a ton of words I've never heard before.
I'm scratching my head, wondering if it's because of my English classes, which I wasn't very good at.
As someone who prefers reading books to searching the internet, here are some of the IT terms I learned from textbooks!
I'll also include my feelings (which I can't express aloud) as an added bonus.
I hope you'll read this without thinking, "This is just an unnecessary extra."

 

Network Key Terms

・OSI reference model A
standardized network structure divided into seven layers.

(Layer 1) Physical Layer (Layer 2) Data Link Layer (Layer 3) Network Layer (Layer 4) Transport Layer (Layer 5) Session Layer (Layer 6) Presentation Layer (Layer 7) Application Layer

(That thing you drink to prevent heatstroke, right?)

・
An address on an
IP (It seems I have another home on the Internet...)

・Network protocol:

A set of rules for computers to communicate with each other over a network.

TCP
: A protocol for achieving reliable and secure data communication.
(Please make this protocol a standard feature for me too.)

・Port number:
The program's connection port.
(Welcome!)

・Node:
A general term for devices connected to a network.
(I'm in trouble with nodes. (lol))

・Subnet masks
logically divide a network into multiple networks.
(But wouldn't a net-like mask be effective in preventing infectious diseases?)

DNS
is a service that obtains an IP address from a computer name.
that runs DNS is called a DNS server.
(Dot com ~ ♪ Dot com ♪)

Firewall: A
system set up between a local network and the Internet.
Its role is to prevent unauthorized intrusion from outside.
(It must be a burning wall.)

・WWW
is the standard document system used on the Internet.
(www)

・HTTP:
A protocol used for communicating with servers in www services.
(Looks like www-grass? Sounds interesting!)

HTTPS is
a protocol that adds SSL encrypted communication to HTTP.
A URL that begins with "https://" indicates that the communication is encrypted using HTTPS.
(I never paid much attention to whether there was an "s" after "http" or not.)

・SSL:
An encryption protocol used to securely exchange information over the Internet.
(There's an M between S and L, right?)

・
Cloud computing is an abbreviation for the term cloud computing, which allows you to use services without being aware of what is on the other side of
the cloud (The other side of the network is beyond the sky, isn't it?)

HTML ,
which is widely used on the Internet.
(I can't even speak Japanese properly... What a pain.)

・SMTP:
A protocol used to send internet email.
(At first glance, I thought it was the name of a national idol.)

・POP:
A protocol used to receive internet email.
(Can you send colorful deco-mail?)

 

summary

As I wrote in my last blog,

■There are a lot of katakana!
■There are a lot of words abbreviated to alphabets!

⇒The textbook I used for studying this time is

"Key Network Terms" by Ryuji Kitami

I'm struggling with the sheer number of terms I need to remember for work.
But if I learn one a day, I'll be able to memorize 365 languages!
I'll probably forget at least 315 of them... (laughs)
It's inevitable that I'll forget! I've just learned something new!
The best thing to do is to stay positive!

Growing every day, progressing every day.
I have to update myself every day!!!
Thank you for reading to the end.