How should i start with labs? I am Following Wendell Odom's CERT guide Book and it has recommended to get started with LABS since I am in the part 2 of the book. He has recommended to check the lab resources he has provided, can you guys check it and guide me, for now i just know that Cisco Packet tracer is some tool that exists, i have used it to just configure basic topologies ( bus, star, etc). Wendell Odom's: https://www.certskills.com/advanced-search/?_parts_chapters=200-301-v1-parts&_quest_hands_on=config-lab-2020