Your customers new network contains network devices from multiple vendors. You have been asked to propose two technologies that will work among all the vendors' networking equipment. Which two…

Question

Options

• ARSVP
• BEIGRP
• CPVST
• DLDP

• A
  70% (23)
• B
  9% (3)
• C
  21% (7)

Explanation

RSVP and LDP are both open IETF standards, which means they are designed to interoperate across equipment from any vendor - making them the right fit for a multi-vendor network design. RSVP (Resource Reservation Protocol) is widely used for MPLS traffic engineering and QoS signaling, while LDP (Label Distribution Protocol) is the standard protocol for distributing MPLS labels between routers.

Why the distractors are wrong:

• B. EIGRP - Cisco proprietary routing protocol. Even though Cisco published it as an informational RFC (7868) in 2013, it is not universally supported by non-Cisco vendors and is not considered a true open standard for exam purposes.
• C. PVST - Per-VLAN Spanning Tree is a Cisco-proprietary extension of STP. The multi-vendor alternatives are 802.1w (RSTP) or 802.1s (MSTP).

Memory tip: In multi-vendor questions, filter by "is it an open IETF/IEEE standard?" RSVP and LDP both have IETF RFCs and are implemented by all major vendors. If you see Cisco-specific branding (Enhanced, Per-VLAN), it's almost certainly proprietary - and wrong for multi-vendor scenarios.

No community discussion yet for this question.