Which command creates a VRF instance on a Cisco PE router?

address-family ipv4 vrf CUSTOMER-A

A company has two separate VPNs (VPN-A and VPN-B) on the same PE router. They want to allow users in VPN-A to access a specific server in VPN-B, but they do not want any other traffic to flow between the two VPNs. What is the most efficient way to configure this extranet VPN?

Configure a route target on VPN-A that imports the specific server's route from VPN-B.

Configure a new VRF for the extranet and connect the server to it.

Configure a route target on VPN-B that exports the server's route to VPN-A.

Configure a new route target (e.g., 65000:100) and use it in the export statement of VPN-B for the server's route and in the import statement of VPN-A.

A service provider is troubleshooting a routing loop in an MPLS L3VPN. The loop is occurring between two PE routers that are both connected to the same customer site. The customer is running OSPF as the PE-CE protocol. What is the most likely cause of this loop?

The DN bit is not being set on the routes advertised from the PE routers.

The MPLS label stack is not being applied correctly.

The route distinguisher is not configured correctly on one of the PE routers.

The route target is not configured correctly on one of the PE routers.

CiscoCertified Network Professional Service Provider

Domain 4Objective 3

4.3 Configure L3VPN 350-501 Practice Questions (Page 1)

Part of the Services domain, which accounts for 20% of the 350-501 exam. Cisco does not publish an official question count, but from its 120-minute exam (~50–80 total, ~10–16 in this domain), expect 2–3 from this objective — we provide 26 practice questions to prepare you well beyond it. (estimate)

26questions here

6free pages

10concepts

20%of the exam

Questions 1–5

1foundation · easy
Which mechanism is used to allow customer VRFs to access a shared services VRF?
Select an answer first
2foundation · easy
Which method is used to control which routes are leaked between VRFs?
Select an answer first
3foundation · easy
Which command creates a VRF instance on a Cisco PE router?
Select an answer first
4application · medium
A company has two separate VPNs (VPN-A and VPN-B) on the same PE router. They want to allow users in VPN-A to access a specific server in VPN-B, but they do not want any other traffic to flow between the two VPNs. What is the most efficient way to configure this extranet VPN?
Select an answer first
5expert · hard
A service provider is troubleshooting a routing loop in an MPLS L3VPN. The loop is occurring between two PE routers that are both connected to the same customer site. The customer is running OSPF as the PE-CE protocol. What is the most likely cause of this loop?
Select an answer first

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4.3 Configure L3VPN 350-501 Practice Questions (Page 1)

Questions 1–5

Which mechanism is used to allow customer VRFs to access a shared services VRF?

Which method is used to control which routes are leaked between VRFs?

Which command creates a VRF instance on a Cisco PE router?

A company has two separate VPNs (VPN-A and VPN-B) on the same PE router. They want to allow users in VPN-A to access a specific server in VPN-B, but they do not want any other traffic to flow between the two VPNs. What is the most efficient way to configure this extranet VPN?

A service provider is troubleshooting a routing loop in an MPLS L3VPN. The loop is occurring between two PE routers that are both connected to the same customer site. The customer is running OSPF as the PE-CE protocol. What is the most likely cause of this loop?

Keep studying — Services