An engineer is deploying a large-scale MPLS network with thousands of PE routers. The design must minimize the number of LSPs that need to be signaled and reduce the control-plane load on the P routers. Which tunneling approach best meets this scalability requirement?

A single GRE tunnel between each pair of PEs

LDP with a single label-switched path per IGP destination

RSVP-TE LSPs from every PE to every other PE

Full-mesh RSVP-TE LSPs between all PE routers

A network operator is troubleshooting a VPLS service that is experiencing packet loss. The VPLS is carried over an MPLS backbone using RSVP-TE LSPs. The operator suspects that the LSP path is not optimal. What is the most likely cause of the issue?

The VPLS is using LDP instead of RSVP-TE

The MTU on the VPLS interface is too high

The RSVP-TE LSPs are not using the shortest IGP path

The VPLS instance is not configured with a route target

A service provider is designing a new MPLS backbone. The network will carry both best-effort internet traffic and premium business VPN traffic. The premium traffic requires guaranteed bandwidth and fast reroute in under 50 ms. The provider also wants to minimize the number of LSPs to reduce operational complexity. Which design best meets these conflicting requirements?

Use RSVP-TE without FRR for all traffic

Use LDP for internet traffic and RSVP-TE with FRR for premium VPN traffic

Use only LDP and rely on IGP convergence for all traffic

Use RSVP-TE for all traffic with a full mesh of LSPs

A provider is deploying IPsec tunnels over the internet for a customer. The customer's traffic includes both TCP and UDP applications. The engineer notices that large TCP transfers are performing poorly due to fragmentation. The engineer wants to avoid fragmentation without disabling PMTUD. What is the most effective solution?

Disable PMTUD and set a fixed packet size

Use GRE instead of IPsec to reduce overhead

Increase the physical interface MTU to 9000 bytes

Reduce the IPsec tunnel MTU to account for encapsulation overhead

A service provider is considering using VXLAN to provide network virtualization for a multi-tenant data center interconnect. The provider also needs to support legacy devices that do not understand VXLAN. What is the most effective way to integrate VXLAN with the existing MPLS backbone?

Use VXLAN only within the data center and GRE for the WAN

Run VXLAN over IP-IP tunnels across the backbone

Terminate VXLAN at the PE routers and map VNIs to MPLS VPNs

Replace the MPLS backbone with VXLAN everywhere

Juniper NetworksCertified Specialist, Service Provider Routing and Switching (JNCIS-SP)

Domain 9Objective 1

Tunneling Applications and Considerations JN0-364 Practice Questions (Page 1)

Part of the Tunnels domain, which makes up ~4% of our current practice bank. Juniper Networks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~1–2 in this domain), expect 1–1 from this objective — we provide 23 practice questions to prepare you well beyond it. (estimate)

23questions here

5free pages

2concepts

Questions 1–5

1application · medium
An engineer is deploying a large-scale MPLS network with thousands of PE routers. The design must minimize the number of LSPs that need to be signaled and reduce the control-plane load on the P routers. Which tunneling approach best meets this scalability requirement?
Select an answer first
2expert · hard
A network operator is troubleshooting a VPLS service that is experiencing packet loss. The VPLS is carried over an MPLS backbone using RSVP-TE LSPs. The operator suspects that the LSP path is not optimal. What is the most likely cause of the issue?
Select an answer first
3expert · hard
A service provider is designing a new MPLS backbone. The network will carry both best-effort internet traffic and premium business VPN traffic. The premium traffic requires guaranteed bandwidth and fast reroute in under 50 ms. The provider also wants to minimize the number of LSPs to reduce operational complexity. Which design best meets these conflicting requirements?
Select an answer first
4expert · hard
A provider is deploying IPsec tunnels over the internet for a customer. The customer's traffic includes both TCP and UDP applications. The engineer notices that large TCP transfers are performing poorly due to fragmentation. The engineer wants to avoid fragmentation without disabling PMTUD. What is the most effective solution?
Select an answer first
5expert · hard
A service provider is considering using VXLAN to provide network virtualization for a multi-tenant data center interconnect. The provider also needs to support legacy devices that do not understand VXLAN. What is the most effective way to integrate VXLAN with the existing MPLS backbone?
Select an answer first

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Tunneling Applications and Considerations JN0-364 Practice Questions (Page 1)

Questions 1–5

An engineer is deploying a large-scale MPLS network with thousands of PE routers. The design must minimize the number of LSPs that need to be signaled and reduce the control-plane load on the P routers. Which tunneling approach best meets this scalability requirement?

A network operator is troubleshooting a VPLS service that is experiencing packet loss. The VPLS is carried over an MPLS backbone using RSVP-TE LSPs. The operator suspects that the LSP path is not optimal. What is the most likely cause of the issue?

A service provider is considering using VXLAN to provide network virtualization for a multi-tenant data center interconnect. The provider also needs to support legacy devices that do not understand VXLAN. What is the most effective way to integrate VXLAN with the existing MPLS backbone?

Keep studying — Tunnels