# TryHackMe: BP: Networking

**[Task 1] Kinda like a street address, just cooler.**

I’ll provide calculation method for #7.

7. How many addresses make up a typical class C range? Specifically a /24

“/24” mean

1111 1111 . 1111 1111 . 1111 1111 . 0000 0000

There’re twenty-four “1”.

There’re eight “0”. → 2⁸ = 256

**[Task 2] Binary to DecimalCalculation method**

For an example:

1001 0010 (in binary) =

**1***2⁷ +

**0***2⁶ +

**0***2⁵ +

**1***2⁴ +

**0***2³ +

**0***2² +

**1***2¹ +

**0***2⁰ = 146 (in decimal)

**[Task 3] Decimal to BinaryCalculation method**For an example:

238 (in decimal)

Start with

238 / 2 = 119 *2 + 0

Repeat dividing step until you can’t

Fraction in the circle is the answer

Answer

**[Task 4] Address Class Identification**Just find answer with provided table