Chapter 5 - Addressing Structures

Question 1

What Makes Up an IP Address?

Answer 1

• 32-bit binary number
• divided into 4 octets (8-bits each)
• dotted decimal notation

Question 2

How Are the Unicast Ranges Broken Down?

Answer 2

1. Class A: millions of devices, only first octet used for network ID, addressing begins at 0
2. Class B: thousands of devices, first 2 octets for network ID, addressing begins at 10
3. Class C: small amount of devices, first 3 octets for network ID, addressing begins at 110
4. Class D: used for multicast addresses
5. Class E: used for experimental addresses

Question 3

What Makes Up a MAC Address?

Answer 3

• 6 hexadecimal bytes
• 48-bits
• colon notation