CCNA: Cisco Certified Network Associate — Question 1064

What is a characteristic of frame switching?

Answer options

• A. performs a lookup to learn the destination interface
• B. disabled by default on all interfaces and VLANs
• C. buffers and forwards frames with less than 5 CRCs
• D. protects against denial of service attacks

Correct answer: A

Explanation

The correct answer is A, as frame switching involves performing a lookup to determine where to send incoming frames based on their destination addresses. Options B, C, and D are incorrect because frame switching is not disabled by default, does not specifically buffer frames based on CRCs, and does not inherently offer denial of service protection.