Jawaban:

192.168.100.30 = ip address

255.255.255.248 atau 11111111.11111111.11111111.11111000atau/29 = subnet mask

192.168.100.24 = net id

Penjelasan:

cara menghitung net id:

2^y - 2 dimana y = jumlah angka 0 pada subnet mask.

255.255.255.248 = 11111111.11111111.11111111.11111000

jumlah angka 0 = 3

2^3 - 2

= 8-2

= 6

jumlah host = 6

net id = jumlah host + 2 = 8

192.168.100.0 = net id

192.168.100.1 - 6 = host

192.168.100.7 = ip broadcast

192.168.100.8 = net id

192.168.100.9-14 = host

192.168.100.15 = ip broadcast

192.168.100.16 = net id

192.168.100.17-22 = host

192.168.100.23 = ip broadcast

192.168.100.24 = net id

192.168.100.25-30 = host

192.168.100.31 = ip broadcast

jadi, untuk alamat ip 192.168.100.30net id nya adalah192.168.100.24

maaf kalau salah