World of Computer Networking Your CCNA start - Number of Hosts Needed in a Network - Example 2

The video tutorial explains how to calculate the number of host IP addresses in a network using the network prefix and mask. It provides a step-by-step example, demonstrating the calculation of host bits, network addresses, and available IPs. The tutorial emphasizes the practical application of these calculations for home and office networks, highlighting the use of a 24 mask. It concludes with a note on the universality of the calculation method for both public and private IP ranges.

What is the primary purpose of knowing the network prefix and network mask?

• To calculate the speed of the network

• To find the geographical location of the network

• To identify the type of network

• To determine the number of available host IP addresses

How many host bits are there in a network with a mask of 24?

• 16

• 8

• 32

• 24

Why do we subtract two from the total number of IP addresses calculated?

• To improve network security

• To reserve addresses for future use

• To reduce network congestion

• To account for the network and broadcast addresses

What is the total number of usable IP addresses in a network with a mask of 24?

• 254

• 512

• 256

• 128

Why is a network with a mask of 24 considered suitable for home use?

• It provides a large number of IP addresses

• It requires less technical knowledge to manage

• It is more secure than other masks

• It is cheaper to implement