1-9 EXAMINING PUBLIC AND PRIVATE ADDRESSING

Question 1

What is the main purpose of RFC 1918?

Answer 1

Defines the allocation of IP address blocks for private use

Published by IETF

Question 2

What is a key characteristic of IP addresses defined in RFC 1918?

Answer 2

Non-routable across the Internet

Prevents external traffic from reaching them directly

Question 3

How do corporate networks utilize RFC 1918?

Answer 3

Use Class A or B for assigning IP addresses to a large number of devices

Helps avoid exhausting public IP addresses

Question 4

How are home networks structured according to RFC 1918?

Answer 4

Use Class C range to connect multiple personal devices

Often managed by a home router

Question 5

What role do data centers play in relation to RFC 1918?

Answer 5

Use Class A or B ranges to efficiently manage a vast array of servers and equipment

Question 6

How do RFC 1918 addresses work with Network Address Translation (NAT)?

Answer 6

Allows multiple devices in a private network to access the Internet using a single public IP address

Question 7

What is the Class A private address range specified in RFC 1918?

Answer 7

10.0.0.0 to 10.255.255.255 (10.0.0.0/8)

Suitable for large organizations

Question 8

What is the Class B private address range specified in RFC 1918?

Answer 8

172.16.0.0 to 172.31.255.255 (172.16.0.0/12)

Commonly used in medium-sized networks

Question 9

What is the Class C private address range specified in RFC 1918?

Answer 9

192.168.0.0 to 192.168.255.255 (192.168.0.0/16)

Ideal for small businesses and home networks

Question 10

What is one security implication of using RFC 1918 addresses?

Answer 10

Add an extra layer of security by being hidden from the public internet

Reduces the risk of direct external attacks