In an IP fabric, what is the purpose of route summarization?

To reduce the number of routes in the routing table by advertising a single summary route

To ensure all routes are advertised with the same metric

To increase the number of routes advertised to provide more path redundancy

To filter all routes that are not used by tenants

An engineer is configuring a new leaf switch in an existing IP fabric that uses OSPF as the underlay. The leaf has four uplinks to four different spines. After committing the OSPF configuration, the leaf sees all four neighbors as full, but only two of the uplinks are used for traffic. What is the most likely cause?

The OSPF interface costs are not equal on all four uplinks

The OSPF router ID is duplicated on the spine switches

The OSPF area ID is different on two of the uplinks

The OSPF network type is point-to-multipoint on all uplinks

A network engineer is configuring a new leaf switch in an eBGP IP fabric. The leaf has four uplinks to four spines, each in a different AS. The engineer wants to ensure that the leaf can use all four uplinks for traffic to the same destination. What must be configured?

BGP multipath with maximum-paths 4

BGP route reflection on the spines

When configuring BGP as the underlay routing protocol on a leaf switch in an IP fabric, which configuration step is essential?

Disabling BGP on all interfaces except the management interface

Setting the BGP local preference to 200 on all routes

Configuring the loopback interface as the BGP router ID

Assigning the same autonomous system number to all switches in the fabric

A service provider is deploying a data center fabric with BGP EVPN overlays. They want to ensure that tenant MAC/IP routes are only exchanged between leaf switches that have the same VXLAN VNI configured. What BGP EVPN mechanism should they use?

Loopback addresses on the leaves

Juniper NetworksCertified Professional, Data Center (JNCIP-DC)

Domain 2Objective 2

IP Fabric Routing JN0-683 Practice Questions (Page 5)

Part of the Layer 3 Fabrics domain, which makes up ~23% of our current practice bank. Juniper Networks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~8–14 in this domain), expect 1–2 from this objective — we provide 27 practice questions to prepare you well beyond it. (estimate)

27questions here

6free pages

7concepts

Questions 21–25

21foundation · easy
In an IP fabric, what is the purpose of route summarization?
Select an answer first
22application · medium
An engineer is configuring a new leaf switch in an existing IP fabric that uses OSPF as the underlay. The leaf has four uplinks to four different spines. After committing the OSPF configuration, the leaf sees all four neighbors as full, but only two of the uplinks are used for traffic. What is the most likely cause?
Select an answer first
23application · medium
A network engineer is configuring a new leaf switch in an eBGP IP fabric. The leaf has four uplinks to four spines, each in a different AS. The engineer wants to ensure that the leaf can use all four uplinks for traffic to the same destination. What must be configured?
Select an answer first
24foundation · easy
When configuring BGP as the underlay routing protocol on a leaf switch in an IP fabric, which configuration step is essential?
Select an answer first
25application · medium
A service provider is deploying a data center fabric with BGP EVPN overlays. They want to ensure that tenant MAC/IP routes are only exchanged between leaf switches that have the same VXLAN VNI configured. What BGP EVPN mechanism should they use?
Select an answer first

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