CCNA Routing and Switching (legacy) — Question 131

Which feature can you implement to reserve bandwidth for VoIP calls across the call path?

Answer options

• A. PQ
• B. CBWFQ
• C. round robin
• D. RSVP

Correct answer: D

Explanation

RSVP (Resource Reservation Protocol) is designed to reserve bandwidth for specific types of traffic, such as VoIP, ensuring that these calls have the necessary resources for optimal performance. The other options like PQ (Priority Queuing) and CBWFQ (Class-Based Weighted Fair Queuing) manage traffic but do not specifically reserve bandwidth like RSVP does, while round robin is a scheduling method and does not directly relate to bandwidth reservation.