News & Tools
- Bridgefy – Encrypted text messaging using Bluetooth. Share and install now, for times when Wi-Fi and cellular services are down.
- 15 Top IT Certifications In 2022 – An overview of the highest paying ones right now, according to studies.
- ‘Our biggest challenge? Lack of imagination’: the scientists turning the desert green
- Understanding How Facebook Disappeared from the Internet
- More details about the October 4 outage
- DNSPerf – DNS Performance Analytics and Comparison
- Windows 11 upgrade: Five questions to ask first
- IT security and cybersecurity: What’s the difference?
Subnetting Tutorial & Reference
Assignment #3 Debriefing
VLSM Continued… Variable Sized Subnets
- See the VLSM notes on the previous class notes.
- VLSM Worksheet
Read / Watch / Do
CCNA Certification Study Guide, Volume 2
- Read Chapter 6 OSPF (Open Shortest Path First)
- Do the Written Labs
- Answer the Review Questions
- Do not submit your answers for this chapter. The answers are in Appendix.
- VLSM & Route Summarization (by The Networking Doctors)
- CCNA Training Part 46 Class less subnetting (by Lazaro Diaz / The Networking Doctors)