ellencrist / questions-networks

Exercises 1

What is ICANN's responsibility?

R: Distribute IP addresses and manage DNS servers.

What is the role of the Switch in a network and why did it succeed the Hub?

R: Perform frame switching. The Hub succeeded because it allows unicast data to be sent.

Coaxial cable carries bits through which medium?

R: Copper wires.

The TCP and UDP protocols are at Layer 4 of the OSI Model. What is the difference between them?

R: The difference is that TCP acknowledges receipt of data while UDP does not.

What is the IP protocol?

R: It is the Internet Protocol and is responsible for routing packets on a network.

Exercises 2

The IP address class table is defined in five classes. What is the importance of the table for the organization of networks?

R:Determine the number of hosts and networks in each class.

How does the flow of a DNS resolution work?

R: The root domain forwards to TLD servers that forward to destination servers

You need to find out which path the sent packet took to reach the destination. Which command can help with this issue?

R:Tracert

What is the importance of using SSO (Single Sign On)?

R: It is important because it allows users to login to different systems using different tokens, and these are generated through a single user and password.

Why is it important to segment a corporate wireless network between employees and visitors?

R: To isolate the network from employees where company data is located. Allowing visitors to use the same network is a security breach and could compromise the company's network.