Who is Afilia Saga's "Wireless LAN King"?

Let's get to know the wireless LAN that we use casually

"Afilia Saga" where idols study and talk about digital gadgets. In "Weekly ASCII" currently on sale, while learning about the latest wireless LAN routers, we challenged whether members could actually set up a wireless LAN access point.

In the overhanging version that introduces the contents that were not published in this magazine, we delivered the first half of the wireless LAN test last time, so this time we will deliver the second half of the sixth and subsequent questions! Who will get the crown of the wireless LAN king !?

It is a wireless LAN test handmade by the person in charge.Let's solve it together

What is "Afilia Saga"?

A school-type girls vocal unit that is double-produced by Chiyomaru Shikura and Haruko Momoi, two major makers in the Moe industry, and is also in charge of many tie-ups for anime songs. There are eight unique members: Kana Hayama, Sera Amemiya, Anna Sakurada, Chloe Yuki, Amina Tojo, Kaori Nagisa, Veil Natsume, and Yumi Terasaka, the director of the cyber department. Recently, he is in charge of the opening theme of the TV anime "I don't want to hurt, so I'd like to focus on my defense." Not only idol fans but also anime fans are paying attention.

The unbeatable haters of the cyber club are crackling!

The participating members this time are Yumi Terasaka, Kaori Nagisa, and Veil Natsume, the directors.

Kaori Nagisa

● Twitter → @Kaori_afilia

Natsume Veil

● Twitter → @BeeL_afilia_

Yumi Terasaka

● Twitter → @ 129Ym_afilia

── Then, it is the rearrangement of the sixth question. This is in order of strength, but does anyone know what "strength" is?

Does it mean that the veil radio waves are less likely to weaken?

── Sorry. This is not a problem, but the correct answer is the strength of the encryption security of the wireless LAN.

Veil safety!

──So safe!

Is it strong because it is Yumi? I made a mistake in writing. I wrote letters instead of the alphabet. Is this no good?

──It's okay if the order is the same.

Veil If I can change it, I want to change it!

──Veil-chan's order is reversed, so it's no good!

Veil Eh!

Yumi It's wrong if you change it (laughs)

Veil please!

It will be taken out of the Kaori classroom!

Yumi Well, see. I still don't know if it's right or wrong.

── Then, everyone should get 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!

── That's right. And all of them are incorrect, and the correct answers are C (WPA3), B (WPA), and A (WEP) in that order.

Veil, after all! I'm writing the other way around! 3 is decided to be new!

Kaori I thought she was a catch.

Yumi That's right.

Veil I'm actually answering correctly ~!

Kaori Incorrect answer is incorrect!

Yumi: Even if you answer correctly, you should read the problem carefully.

Veil I was always told by my teacher. Read the problem statement properly (laughs).

── "WEP" has been around for over 20 years, and there were some handheld game consoles that had only this, but I wonder if it's almost gone.

Is there security in Kaori handheld game consoles?

──The security of the game console itself, or the security of its communication. So I think it's a good idea to enter a password. However, with "WEP", the mechanism is simple, so it will be broken immediately, and although the story will be a little off, the mysterious free Wi-Fi that does not require a password that you see in the city is in a state of communicating in an unprotected state. It's very dangerous because it's close.

Kaori His cafe ...

── Not all of them are dangerous, and public wireless LAN services are evolving in various ways, so it's okay if you remember to be careful about suspicious things.

Yumi I don't know, but it seems like it can be used, isn't it?

Super difficult problem? What are "IPv4" and "IPv6" !?

──Then, there is another test, "Explain the difference", but the 7th question is too amazing if you can answer correctly. What is the difference between "IPv4" and "IPv6"?

Yumi The larger the number, the faster the communication. In other words, "IPV6" is faster.

Kaori "IPv6" is a new service.

Veil "IPv6" is more secure!

──Yumichi is regrettable, but only Kaori-chan, let's score 5 points with △.

I did Kaori!

Veil That would be new (laughs)

Yumi But is it OK because "IPv6" is newer than "IPv4"?

──That's right, but when you ask why you changed "new" to △, this is quite the core. The Internet connection address "IP address" that was mentioned in the second question, but the IP address that everyone used in the past was a communication method called "IPv4". There were 4.3 billion of these, but the Internet has exploded and the 4.3 billion have almost been exhausted. That's why I decided that the "newly" created method was "IPv6", so I wasn't wrong.

Is that a new version of the veil IP address?

──Strictly speaking, it's a new version of "IP", not "IP address". So, as a model answer, "IPv4 is the most commonly used IP at present, and" IPv6 "is the new version of IP that is being used because it seems to be exhausted.

Yumi is too difficult!

──-But, in other words, Kaori-chan's "new" is generally the same, so that's why I got 5 points.

Kaori If she's about the same, 10 points would be fine!

──By the way, there were 4.3 billion "IPv4". How many "IPv6" do you think there is?

Kaori 10 billion!

Veil When was it made?

──It's been around for a long time, but it's been about 10 years since it was actually available to general users.

Kaori Then 2 trillion!

Yumi 1 Kyo!

Veil will be like that !?

── By the way, it is above Kyo.

I only know Yumi Kyo. I remember playing around when I was in elementary school.

──The correct answer is 340. I didn't really understand it, but it seems that 澗 is "340 trillion x 1 trillion x 1 trillion". It seems that the order is 100 million, trillion, Kyo, 垓, 𥝱, groove, and 澗.

Veil It's not just that this is being issued now, but that it's possible to do 340 from now on. I see.

──It seems. Well, in other words, it's not crowded because there is so much room.

Yumi By the way, she says "IPv6 realizes high speed and high speed communication" in the box. I wrote that "communication is fast", but is this wrong?

──The theoretical communication speeds of "IPv4" and "IPv6" do not change. However, in reality, "IPv4 is exhausted and clogged, so it's slow, and on the contrary," IPv6 "can communicate without going through such a clogged place, so the speed is quite easy to come out.

Yumi Then, 2 points!

──Kaori-chan's terminology has become stricter, so don't do it here!

Yumi Eh! Isn't the scoring standard ambiguous?

──The point is painful to your ears, but please try more! I regained my mind and next. I'm wondering if I could do it the other way around. The problem is to explain the difference between "2.4GHz band and 5GHz band".

5GHz is faster in the area where radio waves spread to the veil house!

Kaori She is faster at 5GHz and less crowded at 2.4GHz.

Yumi 5GHz has faster communication. 2.4GHz is a commonly used frequency.

──Oh. Everyone feels good. It's okay for everyone to answer correctly, but let's make a difference depending on the details of the content. Yumichii 10 points, Kaori-chan and Veil-chan 5 points.

Yumi Yeah! I got 10 points!

──Yumichi is almost perfect.

Yumi Is this also faster because 5GHz is free?

──There is also that, but the theoretical value is that the 5GHz band is a faster standard, so even if it is simply faster, it is the correct answer. Also, as a side note, there is a difference that the 2.4GHz band is strong against obstacles and the 5GHz band is weak.

Yumi Then, is the 2.4GHz band slower but more stable?

──This is difficult, and after all the radio waves are crowded, so it's not stable. For example, the microwave oven uses the 2.4GHz band, so if you warm your lunch in the microwave, it may interfere with the wireless LAN.

Kaori Microwave is not a network !?

──The frequency of the electromagnetic waves you are using is in the 2.4GHz band.

Veil She's talking about electromagnetic waves.

Kaori You also say that you shouldn't bring your face close to the microwave.

──So, if you make a model answer to this problem, "The 2.4GHz band is strong against obstacles and radio waves are easy to reach, but the speed tends to slow down because it is crowded. The 5GHz band is vulnerable to obstacles but Wi-Fi standard Since it is a dedicated frequency band, stable communication is easy. "

Yumi By the way, is it related to "5G" that you often hear on smartphones these days?

── Good question! I used to make a mistake in TV programs, but be careful because "5G" and "5GHz band" are completely different. "5G" is "5 Generation", that is, the 5th generation mobile communication method. On the other hand, wireless LAN is a frequency band, so it is in the 5GHz band.

It's a shame to say, "Because my wireless is 5G," because it's Kaori!