Developing Applications and Automating Workflows Using Cisco Platforms (DEVASC) — Question 80

What is used in Layer 2 switches to direct packet transmission to the intended recipient?

Answer options

• A. MAC address
• B. IPv6 address
• C. spanning tree
• D. IPv4 address

Correct answer: A

Explanation

Layer 2 switches utilize MAC addresses to determine where to forward packets, as they operate at the data link layer and use hardware addresses for communication. IPv4 and IPv6 addresses function at Layer 3, which is irrelevant for Layer 2 operations. The spanning tree protocol is used to prevent loops in a network but does not direct packet transmission.