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Which two statements are true about VRF routing instances? (Choose two.)

A.
VRF can be used in conjunction with Layer 3 logical interfaces.
A.
VRF can be used in conjunction with Layer 3 logical interfaces.
Answers
B.
Each logical Layer 3 interface can belong to only one routing instance.
B.
Each logical Layer 3 interface can belong to only one routing instance.
Answers
C.
Each logical Layer 3 interface can belong to multiple routing instances.
C.
Each logical Layer 3 interface can belong to multiple routing instances.
Answers
D.
VRF does not enable multitenancy.
D.
VRF does not enable multitenancy.
Answers
Suggested answer: A, B

Explanation:

VRF (Virtual Routing and Forwarding) instances can be used in conjunction with Layer 3 logical interfaces. Each logical Layer 3 interface can belong to only one VRF, maintaining separation and isolation of routing tables, which is essential for multitenancy and network segmentation.

Reference:

VRF Lite Configuration

Referring to the exhibit, you want to advertise the IRB routes between both routing instances.

Which two configuration parameters would be applied to accomplish this task? (Choose two.)

A.
Apply policy irb-A under instance Tenant_c and apply policy irb-c under instance Tenant_A as import policies.
A.
Apply policy irb-A under instance Tenant_c and apply policy irb-c under instance Tenant_A as import policies.
Answers
B.
Configure auto-export under both routing instances.
B.
Configure auto-export under both routing instances.
Answers
C.
Configure vrf-table-label under both routing instances.
C.
Configure vrf-table-label under both routing instances.
Answers
D.
Apply policy irb-A under instance Tenant A and apply policy irb-c under instance Tenant_c as export policies.
D.
Apply policy irb-A under instance Tenant A and apply policy irb-c under instance Tenant_c as export policies.
Answers
Suggested answer: A, C

You have deployed a multitenant EVPN-VXLAN fabric. You must have the routes in the BLUE VRF show up in the RED VRF. In this scenario, how would you achieve this goal?

A.
Configure a VRF export policy on the BLUE VRF that matches the RED VRF route target.
A.
Configure a VRF export policy on the BLUE VRF that matches the RED VRF route target.
Answers
B.
Configure the RED route target in the BLUE VRF.
B.
Configure the RED route target in the BLUE VRF.
Answers
C.
Configure the BLUE route target in the RED VRF.
C.
Configure the BLUE route target in the RED VRF.
Answers
D.
Configure a VRF import policy on the RED VRF that matches the BLUE VRF route target.
D.
Configure a VRF import policy on the RED VRF that matches the BLUE VRF route target.
Answers
Suggested answer: D

You are building an IP fabric underlay for your data center. You are asked to ensure that the two spine devices are in the same AS (65000) while the six leaf devices are in a different AS (65512). In this scenario, which two statements are correct by default? (Choose two.)

A.
All BGP routes advertised by a leaf device will be accepted on the spine devices.
A.
All BGP routes advertised by a leaf device will be accepted on the spine devices.
Answers
B.
A leaf device will accept all BGP routes received from the spine that were originated from another leaf device.
B.
A leaf device will accept all BGP routes received from the spine that were originated from another leaf device.
Answers
C.
All BGP routes advertised by a leaf device will be rejected on the spine devices.
C.
All BGP routes advertised by a leaf device will be rejected on the spine devices.
Answers
D.
A leaf device will reject all BGP routes received from the spine that were originated from another leaf device.
D.
A leaf device will reject all BGP routes received from the spine that were originated from another leaf device.
Answers
Suggested answer: A, B

Explanation:

In an EBGP setup with different AS numbers for spine and leaf devices, all BGP routes advertised by a leaf device will be accepted on the spine devices as they are considered external routes. Additionally, a leaf device will accept all BGP routes received from the spine that were originated from another leaf device, enabling full connectivity within the fabric.

Reference:

EBGP Configuration for IP Fabric

Which two statements about ZTP are true? (Choose two.)

A.
The image storage service and the DHCP server can be running on different server hosts.
A.
The image storage service and the DHCP server can be running on different server hosts.
Answers
B.
When a switch is booted. DHCP requests are sent only through the management Ethernet interface.
B.
When a switch is booted. DHCP requests are sent only through the management Ethernet interface.
Answers
C.
The image storage service must be running on the same server host where the DHCP service is running.
C.
The image storage service must be running on the same server host where the DHCP service is running.
Answers
D.
When a switch is booted, DHCP requests are sent through the management interface as well as attached revenue ports.
D.
When a switch is booted, DHCP requests are sent through the management interface as well as attached revenue ports.
Answers
Suggested answer: A, D

Explanation:

In ZTP, the image storage service and the DHCP server can be running on different server hosts, allowing for flexibility in network design. When a switch is booted, DHCP requests are sent through both the management interface and attached revenue ports. This ensures that the switch can retrieve its configuration from the network regardless of how it's connected.

Reference:

Zero Touch Provisioning Guide

You are deploying a 3-stage Clos IP fabric in your data center. In this scenario, which statement is correct?

A.
Each server-facing interface on a leaf node is always three hops away from other server-facing interfaces.
A.
Each server-facing interface on a leaf node is always three hops away from other server-facing interfaces.
Answers
B.
Each spine node must be physically connected to all other spine nodes.
B.
Each spine node must be physically connected to all other spine nodes.
Answers
C.
There is an eight-spine node limitation.
C.
There is an eight-spine node limitation.
Answers
D.
No direct physical connections exist between leaf nodes.
D.
No direct physical connections exist between leaf nodes.
Answers
Suggested answer: D

You are deploying an EBGP IP fabric. In this scenario, which statement is true?

A.
Each spine should peer with every other spine using physical addresses.
A.
Each spine should peer with every other spine using physical addresses.
Answers
B.
Each spine should peer with each leaf using loopback addresses.
B.
Each spine should peer with each leaf using loopback addresses.
Answers
C.
Each spine should peer with every other spine using loopback addresses.
C.
Each spine should peer with every other spine using loopback addresses.
Answers
D.
Each spine should peer with each leaf using physical addresses.
D.
Each spine should peer with each leaf using physical addresses.
Answers
Suggested answer: D

You are asked to scale the available bandwidth within your Clos data center network to support more east-west traffic. In this scenario, what are two ways to accomplish this task? (Choose two.)

A.
Add leaf devices to increase available paths and bandwidth
A.
Add leaf devices to increase available paths and bandwidth
Answers
B.
Use aggregated interfaces in the fabric.
B.
Use aggregated interfaces in the fabric.
Answers
C.
Add spines to increase available paths and bandwidth.
C.
Add spines to increase available paths and bandwidth.
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D.
Interconnect all spines to increase available paths and bandwidth.
D.
Interconnect all spines to increase available paths and bandwidth.
Answers
Suggested answer: A, C

Explanation:

In a Clos data center network, scaling the available bandwidth to support more east-west traffic can be effectively achieved by either adding more leaf devices (A) or more spine devices (C). Adding leaf devices increases the total number of endpoints in the network, thereby providing additional paths and bandwidth for east-west traffic. Similarly, adding spine devices increases the interconnectivity within the network, offering more paths for traffic to flow through, which helps in handling higher volumes of east-west traffic. Both approaches work towards enhancing the overall capacity and efficiency of the network.

Reference:

Juniper Networks - Understanding Clos Networks

Juniper Networks - Data Center Network Design Considerations

Which two statements are correct about a spine and leaf-based IP fabric? (Choose two.)

A.
Traffic is diverted within the fabric when a device or link fails.
A.
Traffic is diverted within the fabric when a device or link fails.
Answers
B.
There is no need for redundancy at the server level.
B.
There is no need for redundancy at the server level.
Answers
C.
Leaf switches broadcast frames to all other leaf devices.
C.
Leaf switches broadcast frames to all other leaf devices.
Answers
D.
Clos networks demonstrate good scaling features.
D.
Clos networks demonstrate good scaling features.
Answers
Suggested answer: A, D

Explanation:

In a spine and leaf-based IP fabric, when a device or link fails, the traffic is rerouted within the fabric (A), ensuring high availability and resiliency. This architecture is designed to dynamically adapt to changes and reroute traffic as needed. Furthermore, Clos networks, which are the basis for spine-leaf architectures, demonstrate good scaling features (D) as they allow for easy expansion of the network by adding more spine or leaf switches without significant changes to the existing infrastructure.

Reference:

Juniper Networks - Spine-and-Leaf Architectures

Understanding Spine-and-Leaf Network Topologies

You are troubleshooting a traditional Clos Layer 3 IP fabric in your data center. You are reviewing the BGP configuration for one of your spine devices.

Referring to the exhibit, which statement is correct?

A.
This spine device will not install multiple next hops for remote destinations in its routing table.
A.
This spine device will not install multiple next hops for remote destinations in its routing table.
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B.
This spine device will not install any routes for remote destinations in its routing table.
B.
This spine device will not install any routes for remote destinations in its routing table.
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C.
This spine device has three neighboring leaf devices.
C.
This spine device has three neighboring leaf devices.
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D.
This spine device has three neighboring spine devices.
D.
This spine device has three neighboring spine devices.
Answers
Suggested answer: C
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