CompTIA Network+ (N10-009) — Question 79

A network administrator is connecting two Layer 2 switches in a network. These switches must transfer data in multiple networks. Which of the following would fulfill this requirement?

Answer options

• A. Jumbo frames
• B. 802.1Q tagging
• C. Native VLAN
• D. Link aggregation

Correct answer: B

Explanation

The correct answer is B, 802.1Q tagging, which allows VLAN information to be added to Ethernet frames, enabling the switches to handle traffic from multiple VLANs effectively. Options A (Jumbo frames) and D (Link aggregation) do not address the need for VLAN support, while option C (Native VLAN) only pertains to untagged traffic on a trunk link and does not facilitate the transfer of multiple networks.