Review last two days topics.

Check out my IT books on Amazon:

Cisco CCNA Simplified - https://amzn.to/2Kqfvin

Cisco CCNA in 60 Days - http://amzn.to/2yr9aMA

101 Labs - Cisco CCNA - https://amzn.to/32Jj7q6

101 Labs - IP Subnetting - https://amzn.to/2qWljqh

IP Subnetting - Zero to Guru - https://amzn.to/2DMA9Hy