What is the primary purpose of a multicast distribution tree (MDT) in an MVPN?

To provide a backup path for unicast traffic in case of link failure

To encrypt multicast traffic between PE routers

To deliver multicast traffic from sources to receivers across the service provider network

To establish a point-to-point connection between multicast sources and receivers

Two service providers are troubleshooting an inter-provider VPN issue. They are using Option B (MP-eBGP) between their ASBRs. The VPN routes are being exchanged, but traffic is not flowing. What is the most likely cause?

The VRF configuration on the ASBRs is incorrect.

The label exchange between the ASBRs is not working correctly.

The PIM configuration on the ASBRs is incorrect.

The OSPF configuration on the ASBRs is incorrect.

What does 6VPE provide in a Layer 3 VPN?

IPv6 routing over the public internet

IPv6 VPN service over an MPLS backbone

IPv6-to-IPv4 translation in the VPN

IPv6 multicast support over MPLS

A service provider is providing internet access to a Layer 3 VPN customer. The customer wants to use a separate VRF for internet access to isolate it from their VPN traffic. What is the primary advantage of this approach?

It eliminates the need for a firewall.

It reduces the number of routes in the VPN VRF.

It provides better security by isolating internet traffic from VPN traffic.

It simplifies NAT configuration.

Juniper NetworksCertified Professional, Service Provider Routing and Switching (JNCIP-SP)

Domain 6Objective 2

Advanced Layer 3 VPN Features JN0-664 Practice Questions (Page 4)

Part of the Layer 3 VPNs domain, which makes up ~8% of our current practice bank. Juniper Networks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~3–5 in this domain), expect 1–2 from this objective — we provide 24 practice questions to prepare you well beyond it. (estimate)

24questions here

5free pages

11concepts

Questions 16–20

16foundation · easy
What is the primary purpose of a multicast distribution tree (MDT) in an MVPN?
Select an answer first
17expert · hard
Two service providers are troubleshooting an inter-provider VPN issue. They are using Option B (MP-eBGP) between their ASBRs. The VPN routes are being exchanged, but traffic is not flowing. What is the most likely cause?
Select an answer first
18foundation · easy
What does 6VPE provide in a Layer 3 VPN?
Select an answer first
19application · medium
A service provider is providing internet access to a Layer 3 VPN customer. The customer wants to use a separate VRF for internet access to isolate it from their VPN traffic. What is the primary advantage of this approach?
Select an answer first
20foundation · easy
Which protocols are used in the carrier-of-carriers model between the customer carrier and the underlying provider?
Select an answer first

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