Answer of self-made network QUIZ

Question 1　⓪　Question 2　①,③　Question 3　⓪

Question 1

First, IPv4 is in operation before IPv6, so ② is inappropriate. Second, IPv4 can be configured with approximately 4.3 billion addresses, so ① is inappropriate. Finally, since IPv4 is expressed in 32 bits, ③, which assumes 64 bits, is inadequate. Therefore, the correct explanation is ⓪.

Question 2

First, ① says, "However, since it cannot handle wide-area communications, a WAN makes it possible to send data and other information accurately and at high speed by connecting "LANs" to each other," which is inappropriate because "WANs" are usually slower than "LANs. ③ "LANs" are not involved at all in this case" is inappropriate because it contradicts the existence of "WANs," which connect "LANs" to each other. Therefore, these two are the correct answers.

Question 3

① is inappropriate because private IP addresses may duplicate addresses in different networks. ② is inappropriate because there is something called "DHCP" that can automatically assign addresses. ③ is inappropriate because "ICANN" manages global IP addresses. Therefore, the correct answer is ⓪.