Designing Cisco Network Service Architectures (ARCH, legacy) — Question 53

Which QoS mechanism uses RSVP?

Answer options

• A. IntServ
• B. DiffServ
• C. CoS
• D. ToS

Correct answer: A

Explanation

IntServ is the correct answer because it relies on RSVP to reserve bandwidth for applications that require a guaranteed level of service. The other options, such as DiffServ, CoS, and ToS, operate on different principles and do not use RSVP for resource reservation.