CCNA: Cisco Certified Network Associate — Question 890

How does frame switching function on a switch?

Answer options

• A. rewrites the source and destination MAC address
• B. forwards frames to a neighbor port using CDP
• C. forwards known destinations to the destination port
• D. is disabled by default on all interfaces and VLANs

Correct answer: C

Explanation

The correct answer, C, is accurate because frame switching entails directing frames to their designated ports based on known MAC addresses. Option A is incorrect as frame switching does not involve rewriting MAC addresses, while B is wrong because frame forwarding does not utilize CDP, and D is misleading because frame switching is typically enabled by default.