One router (R1) and one switch (SW1) connected via GigabitEthernet0/1.
This is where a becomes your most valuable asset. One router (R1) and one switch (SW1) connected
One router with three subnets: HR (192.168.1.0/24), IT (192.168.2.0/24), and Internet (10.0.0.0/30). Gateway router (R1) connected to an ISP router (R2)
Gateway router (R1) connected to an ISP router (R2). Two internal PCs. You can memorize the OSI model, recite IPv4
By [Your Name/Organization] Introduction: Why Labs Matter More Than Theory If you are studying for the Cisco Certified Network Associate (CCNA) 200-301 exam, you have likely already discovered one harsh truth: Reading theory is not enough. You can memorize the OSI model, recite IPv4 header fields, and know the difference between TCP and UDP by heart. But when you sit in front of the exam simulation or, worse, a real network outage, your theoretical knowledge means nothing without muscle memory.
R1, R2, R3 in a chain. R2 is the "ISP."