How does a Junos device determine which routing instance to use for forwarding a packet received on an interface?

By examining the source IP address of the packet

By using the routing instance associated with the ingress logical interface

By looking at the destination MAC address of the packet

By checking the route target of the packet

Which type of routing instance is commonly used to provide tenant isolation in a data center?

Virtual routing and forwarding (VRF)

Virtual private LAN service (VPLS)

Layer 2 virtual private network (L2VPN)

In a Junos configuration, which statement correctly assigns an interface to a routing instance?

set routing-instances tenant-a interface ge-0/0/1.0

set routing-options interface ge-0/0/1.0 instance tenant-a

set interfaces ge-0/0/1 unit 0 family inet address 10.1.1.1/24

set interfaces ge-0/0/1 unit 0 family inet vrf tenant-a

A data center has multiple tenants sharing a common physical infrastructure. The security team requires that tenant A's traffic cannot be seen by tenant B, even if a misconfiguration occurs. Which mechanism provides the strongest guarantee of isolation at the routing and forwarding level?

Apply firewall filters to block inter-tenant traffic.

Use VLANs to separate tenant traffic at Layer 2.

Use a single routing instance with policy-based routing to direct tenant traffic.

Use separate routing instances for each tenant, ensuring separate routing and forwarding tables.

What is the role of a route distinguisher (RD) in a VRF routing instance?

It defines the routing protocol used within the VRF

It controls the import and export of routes between VRFs

It uniquely identifies a VRF within a service provider network to prevent route overlap

It specifies the next-hop IP address for tenant traffic

Juniper NetworksCertified Professional, Data Center (JNCIP-DC)

Domain 6Objective 2

Tenant Traffic Isolation and Routing Instances JN0-683 Practice Questions (Page 4)

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 16–20

16foundation · easy
How does a Junos device determine which routing instance to use for forwarding a packet received on an interface?
Select an answer first
17foundation · easy
Which type of routing instance is commonly used to provide tenant isolation in a data center?
Select an answer first
18foundation · easy
In a Junos configuration, which statement correctly assigns an interface to a routing instance?
Select an answer first
19application · medium
A data center has multiple tenants sharing a common physical infrastructure. The security team requires that tenant A's traffic cannot be seen by tenant B, even if a misconfiguration occurs. Which mechanism provides the strongest guarantee of isolation at the routing and forwarding level?
Select an answer first
20foundation · easy
What is the role of a route distinguisher (RD) in a VRF routing instance?
Select an answer first

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