Visual Basic How-To

1. How to read a file

Dim fileReader As String
fileReader = My.Computer.FileSystem.ReadAllText("C:\test.txt")
MsgBox(fileReader)

2.  

Subnetting visualization

/24 = hhhhhhhh
/25 = shhhhhhh
/26 = sshhhhhh
/27 = ssshhhhh
/28 = sssshhhh
/29 = ssssshhh
/30 = sssssshh
/31 = sssssssh
/32 = ssssssss

Rushing

Sometime people forget to fill information because they are rushing

Key concept: block size

Block size can be used as:
- last address (broadcast address)
- network address

What is that magic number (block size)?
The last span of subnetmask bit

Negara Equator

Benua Asia:
Negara:
Indonesia
Pulau:
- Sumatra
- Kalimantan
- Sulawesi
- Halmahera
- Waigeo (Papua Barat)

Benua Amerika
Negara:
- Equador
- Kolombia
- Brazil

Benua Afrika
Negara:
- Gabon
- Kongo
- Rwanda
- Kenya

Transistor

Network Quiz

what is the broadcast address for network 200.1.2.64/27?