How do routing instances contribute to tenant traffic isolation in a Junos device?

By creating separate physical interfaces for each tenant

By encrypting all tenant traffic to prevent eavesdropping

By maintaining separate routing and forwarding tables for each tenant

By assigning different MAC addresses to each tenant's traffic

A data center has two VRFs, 'VRF-X' and 'VRF-Y'. The requirement is to allow VRF-X to reach a specific server in VRF-Y, but only for a limited time (e.g., during a migration). The engineer wants to implement this without permanently altering the VRF configurations. Which approach is most appropriate?

Permanently configure a logical tunnel interface between the two VRFs.

Use a static route in VRF-X pointing to the server via the VRF-Y interface.

Temporarily configure a route-leaking policy to import the specific server's route from VRF-Y into VRF-X, then remove the policy after the migration.

Merge the two VRFs into a single routing instance for the duration of the migration.

Which Junos configuration statement applies a route-target import policy to a routing instance?

set routing-options vrf-import import-policy

set interfaces ge-0/0/1 unit 0 family inet vrf-import import-policy

set routing-instances tenant-a vrf-import import-policy

set policy-options policy-statement import-policy term 1 from protocol bgp

Which Junos CLI command displays the routing table for a specific routing instance?

show configuration routing-instances

A tenant reports that they cannot reach a server in another data center. The network engineer checks the VRF on the local router and sees the route to the server's subnet in the routing table. However, the 'show route forwarding-table' command does not show the route. What is the most likely cause?

The interface assigned to the VRF is administratively down.

The route's next hop is not resolvable in the VRF's forwarding table.

The route distinguisher is incorrect, preventing the route from being used.

The VRF export policy is blocking the route from being exported.

Juniper NetworksCertified Professional, Data Center (JNCIP-DC)

Domain 6Objective 2

Tenant Traffic Isolation and Routing Instances JN0-683 Practice Questions (Page 3)

Part of the Data Center Multitenancy and Security domain, which makes up ~12% of our current practice bank. Juniper Networks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~4–7 in this domain), expect 1–2 from this objective — we provide 26 practice questions to prepare you well beyond it. (estimate)

26questions here

6free pages

7concepts

Questions 11–15

11foundation · easy
How do routing instances contribute to tenant traffic isolation in a Junos device?
Select an answer first
12expert · hard
A data center has two VRFs, 'VRF-X' and 'VRF-Y'. The requirement is to allow VRF-X to reach a specific server in VRF-Y, but only for a limited time (e.g., during a migration). The engineer wants to implement this without permanently altering the VRF configurations. Which approach is most appropriate?
Select an answer first
13foundation · easy
Which Junos configuration statement applies a route-target import policy to a routing instance?
Select an answer first
14foundation · easy
Which Junos CLI command displays the routing table for a specific routing instance?
Select an answer first
15application · medium
A tenant reports that they cannot reach a server in another data center. The network engineer checks the VRF on the local router and sees the route to the server's subnet in the routing table. However, the 'show route forwarding-table' command does not show the route. What is the most likely cause?
Select an answer first

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