CompTIA 220-1201 Exam With Confidence Using Practice Dumps

A Layer 3 switch is the optimal solution when multiple VLANs must intercommunicate while maintaining high performance and minimal hardware complexity. CompTIA A+ explains that Layer 3 switches combine the capabilities of switching (Layer 2) and routing (Layer 3), allowing VLAN traffic to be routed internally at wire speed, without the latency typically associated with traditional routers.

Layer 3 switches use hardware-based routing, meaning they forward inter-VLAN traffic using ASICs (Application-Specific Integrated Circuits). This allows them to achieve extremely fast throughput, ideal for environments like computer training institutes where multiple VLANs may be used for student labs, instructor networks, and administrative traffic.

A router (D) can route between VLANs but introduces more latency due to software-based routing and typically requires additional equipment. A Web application firewall (A) and DDoS appliance (B) are security devices unrelated to internal VLAN communication.

Because the institute requires minimal hardware and high-speed inter-VLAN communication, the Layer 3 switch is the only CompTIA-supported device that meets both requirements simultaneously.

Outdated drivers: Device functionality issues after an OS upgrade are often caused by incompatible or outdated drivers.

Disabled settings: Some features may be disabled during the upgrade process, requiring re-enablement.

Why Not A (Incorrect configuration): This is unlikely given the issues arose only after the upgrade.

Why Not B (OS and device incompatibility): Upgrades check for compatibility before installation.

Why Not D (Full storage): Storage issues typically prevent installation, not device functionality.

Why Not F (Corrupted registry entries): While possible, this is less common than the selected answers.

CompTIA A+ Exam Reference: Core 1 (220-1201), Section 3.5, troubleshooting OS upgrades​.

Looking at the network configurations and outputs from both PCs and servers, here are the possible issues and solutions:

1. PC 1

Issue: The IP address for PC1 is 192.168.1.1, which conflicts with Server 1 (which also uses 192.168.1.1).

Solution: Change the IP address on PC1 to a unique one within the range, like 192.168.1.3.

2. PC 2

Issue: PC 2 is configured with 192.168.1.2, which conflicts with Server 2 that has the same IP address.

Solution: Update the IP address on PC 2 to something unique, like 192.168.1.4.

3. Server 1

Issue: The IP address for Server 1 is 192.168.1.1, which conflicts with PC1.

Solution: Since Server 1 and PC1 are using the same IP address, change one of them. For Server 1, you could change the IP address to 192.168.1.5.

4. Server 2

Issue: Server 2 is using the IP address 192.168.1.2, which conflicts with PC2.

Solution: Update Server 2 to use a different IP address, such as 192.168.1.6.

General Remediation:

The primary problem here is overlapping IP addresses, leading to connectivity issues. Each device on the network must have a unique IP address. After making these changes, ensure that all devices can communicate properly by testing the connection between devices and verifying they can access shared resources.