ASCII.jp Junjou no Afilia Who is the "Wireless LAN King"?
Let's get to know the wireless LAN that we usually use casually
"Junjou no Afilia Cyber Club" where idols study and talk about digital gadgets. In "Weekly ASCII", which is currently on sale, while learning various things about the latest wireless LAN routers, we challenged ourselves to actually set up a wireless LAN access point by ourselves.
In the protruding version, which introduces the content that was not included in this magazine, we delivered the first half of the wireless LAN test last time, so this time we will deliver the second half after the 6th question! Who will win the wireless LAN king's crown!?
This is a wireless LAN test made by the person in charge. Let's find out together
A school-type girls vocal unit co-produced by Chiyomaru Shikura and Haruko Momoi, the two major makers of the moe industry, and also in charge of tie-ups with anime songs. The group consists of 8 unique members: Kana Hayama, Sera Amamiya, Anna Sakurada, Chloe Yuki, Amina Tojo, Kaori Nagisa, Bale Natsume, and Yumi Terasaka, head of the cyber department. Recently, he was in charge of the opening theme for the TV anime "I don't want to get hurt, so I want to focus on my defense." Not only idol fans, but also anime fans are paying attention.
The sore losers of the Cyber Club are buzzing!
This time, the three participating members are manager Yumi Terasaka, Kaori Nagisa, and Bale Natsume.
Kaori Nagisa
●Twitter→@Kaori_afilia
Natsume Veil
●Twitter→@BeeL_afilia_
Twitter → @129Ym_afilia
──Now for the 6th question, sorting. This is in order of strength, but does anyone know what "strength" is?
Does this mean that the signal is less likely to weaken?
──Sorry. This isn't a problem, but the correct answer is the strength of your wireless LAN's encryption security.
Veil Safety?!
──That's right, safety!
Yumi: Is that why you're strong? I wrote it wrong. I wrote letters instead of the alphabet. Is this bad?
──As long as the order stays the same.
Veil If I can change it, I want to change it too!
──Veil-chan's order is reversed, so it's useless!
Veil Eh!
Yumi: It would be illegal to change that (laughs)
Veil, please!
Kaori: I'll let you out of the classroom!
Yumi: Well, look. I still don't know if it's right or wrong.
──Well then, everyone, please give the correct answer!
Yumi A (WEP), C (WPA3), B (WPA)
Kaori B (WPA), C (WPA3), A (WEP)
Veil A (WEP), B (WPA), C (WPA3)
Yumi All the answers are different!
──Yes. And all of them are wrong, and the correct answers are C (WPA3), B (WPA), and A (WEP) in that order.
Veil Look at it! I wrote it backwards! 3 is decided to be new!
Kaori I thought it was a trick.
Yumi: That's right.
Veil: Actually, I got it right!
Kaori: An incorrect answer is an incorrect answer!
Yumi Even if you got it right, you should read the question carefully.
Veil: I was always told by my teacher. Read the question properly (laughs).
──"WEP" is a system that has been around for over 20 years. kana.
Kaori: Do mobile game consoles have security?
──The security of the game machine itself, or rather the security of its communication. That's why I think you should think about entering a password or something like that. However, with "WEP", the mechanism is simple, so it can be easily broken. It's so close it's dangerous.
Kaori Cafe or something...
── Not everything is dangerous, and public wireless LAN services are evolving in various ways, so just remember to be careful about suspicious things.
Yumi: I don't really understand it, but if it looks like it can be used, it's no good!
Super hard question? What are "IPv4" and "IPv6"!?
──So, next question is "explain the difference", but if you get the answer right, question 7 would be amazing "IPv4 What is the difference between "" and IPv6"?
Yumi The higher the number, the faster the communication. In other words, "IPV6" is faster.
Kaori "IPv6" is a new service.
Veil "IPv6" is more secure!
──It's a pity for Yumichi, but for Kaori alone, let's give 5 points with △.
Kaori: Yay!
Veil That must be new (laughs)
Yumi: But is it true that "IPv6" is newer than "IPv4", so is it OK?
──That's true, but if you ask me why "new" is △, this captures the core quite well. Regarding the Internet connection address "IP address" that appeared in the second question, the IP address that everyone used in the past was for a communication method called "IPv4". There were 4.3 billion of these, but the explosive spread of the Internet has almost exhausted those 4.3 billion. That's why I decided that "IPv6" was the "new" method, so it wasn't wrong.
Vale: Do you mean the new version of the IP address?
──Strictly speaking, it's a new version of "IP", not "IP address". Therefore, as a model answer, "The most commonly used IP at present is IPv4, and as IPv4 is about to run out, the new version of IP that has come into use is 'IPv6.'
Yumi: Too difficult!
──-But, in other words, the "new" that Kaori-chan said is mostly correct, so 5 points.
Kaori: If it's mostly correct, 10 points would be fine!
──By the way, there are 4.3 billion "IPv4". How many "IPv6" do you think there are?
Kaori 10 billion!
When was the veil made?
──It's been around for quite some time, but it's been about 10 years since general users actually started using it.
Kaori Then two trillion!
Yumi 1 Kyo!
Veil Will it be like that!?
──By the way, I'm older than Kyo.
Yumi: I only know as far as Kyoto. I remember joking around when I was in elementary school.
──The correct answer is 340 kan. I didn't understand it well either, but it seems that Kan is "340 trillion x 1 trillion x 1 trillion". The order is 100 million, 100,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000
Vale: It's not that this is the only one that's been issued now, but it's possible that 340 will be available from now on. I see.
──That's right. Well, in other words, it's not crowded because there's plenty of room.
Yumi: By the way, the box says "IPv6 realizes high-speed, high-speed communication". I wrote that "communication is fast", but is this wrong?
──There is no difference in the theoretical communication speed between “IPv4” and “IPv6”. However, in reality, "IPv4 is exhausted and clogged, so it's slow, and on the contrary, 'IPv6' can communicate without going through such clogged places, so it's pretty easy to speed up.
Yumi Then, 2 points!
──I've been strict with Kaori-chan when I'm using terminology, so there's no point here!
Yumi Eh! Isn't the grading criteria ambiguous!?
──That point hurts my ears, but please try it a little more! Then, pick yourself up and move on. I think it might be possible to do it the other way around. The problem is to explain the difference between "2.4GHz band and 5GHz band".
Veil: 5GHz is faster in the area where radio waves spread throughout the house!
Kaori: 5GHz is faster and 2.4GHz is less crowded.
Yumi: 5 GHz communication is faster. 2.4GHz is a commonly used frequency.
──Oh. everyone feels good. It's okay if everyone answers correctly, but let's make a difference in the details of the content. Let's give Yumichii 10 points and Kaori-chan and Veil-chan 5 points.
Yumi Yay! I got 10 points!
──Yumichii is almost perfect.
Yumi: Does this also mean that 5GHz is faster because it's freer?
──That's part of it, but theoretically, the 5GHz band is a faster standard, so it might be correct to say it's simply faster. Also, as a supplement, the 2.4GHz band is strong against obstacles, and the 5GHz band is weak.
Yumi: So the 2.4GHz band is slower but more stable?
──This is difficult, and after all, the radio waves are crowded, so it's not stable. For example, microwave ovens use the 2.4GHz band, so if you heat your lunch in the microwave, it may interfere with the wireless LAN.
Kaori: A microwave isn't a network!?
──The frequency of the electromagnetic waves you are using is in the 2.4GHz band.
Veil: Well, we're talking about electromagnetic waves.
Kaori: You also say that you shouldn't put your face in front of the microwave.
──Therefore, if you create a model answer for this problem, the 2.4GHz band is resistant to obstacles and can easily reach radio waves, but it is congested and the speed tends to decrease. -Since it is a frequency band dedicated to the Fi standard, stable communication is easy."
Yumi: By the way, does it have anything to do with the "5G" that we often hear about on smartphones these days?
──Good question! I've had some misunderstandings in TV programs before, but be careful because "5G" and "5GHz band" are completely different things. "5G" is "5 Generation", that is, the fifth generation mobile communication system. On the other hand, since wireless LAN is a frequency band, it means 5 GHz band.
Kaori: It's embarrassing to say something like "Our wireless is 5G", right?!