Lesson 4: Infrastructure I — Networking
Week of Mon, Sep 28 · Tech+ domain 2: Infrastructure (18% of the exam) · runs ahead of INT-1010 Module 6 (Networking) · week of Oct 5
Take Meerk's quiz for Lesson 4
This week's items
- Read Lesson 4 notesread
- Lesson 4 mastery quizgate · 85% first try
Due the week it opens — same standard as PGCC. Weekly gates are completed in class.
Know these cold
- Router connects networks; switch connects devices inside one network.
- IP address = device address. DHCP hands them out. DNS turns names into addresses.
- Ports: HTTPS 443, HTTP 80, SSH 22. Wi-Fi security: WPA3/WPA2, never open.
- LAN = one building. WAN = wide area. Cloud = resources over the internet on demand.
Meerk's quiz — open the Lesson 4 gate
10 questions, no time limit. 85% on your first attempt in a 24-hour window opens the gate. Retakes inside the window are practice — they help you learn, they don't count. Work alone; the point is to know it, not to have seen it.