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NEW QUESTION # 63
You must enable ECMP load balance in your three-stage eBGP IP Clos fabric. In this scenario, which two features are required? (Choose two.)
Answer: B,C
Explanation:
In a three-stage eBGP IP Clos, a leaf typically learns the same prefix through multiple spines, and those spines are commonly in different AS numbers (a standard Clos pattern for simplified operations and fault isolation). To install multiple equal-cost eBGP paths for the same destination, Junos requires BGP multipath and, when the candidate paths come from different neighbor ASs, you must use the multiple-as capability (expressed as "multipath multiple-as" in many designs) to bypass the default same-neighbor-AS restriction for multipath selection. This ensures multiple eligible eBGP next-hops can be accepted as equal-cost paths and installed.
Separately, to actually perform load balancing in the forwarding plane across those installed next-hops, Junos uses a load-balancing policy that is applied to the forwarding table via routing-options forwarding-table export <policy>. This policy (for example, per-packet or consistent-hash variants, depending on platform and intent) activates the forwarding behavior needed to distribute traffic over the ECMP set.
A "load-balance policy applied to the BGP group" is not the required mechanism for ECMP forwarding behavior in this context, and multihop is unnecessary in a Clos underlay because neighbors are typically directly connected.
Verified Juniper sources (URLs):
https://www.juniper.net/documentation/us/en/software/junos/bgp/topics/topic-map/load-balancing-bgp-session.html
NEW QUESTION # 64
Which two statements ate correct about the information shown in the exhibit? (Choose two.)
Answer: A,B
Explanation:
A generic system is a device that is not managed by Juniper Apstra and does not have a specific role or type assigned to it. A generic system can be used to represent a server, a firewall, a load balancer, or any other device that is not part of the fabric. In the exhibit, the device shown is a generic system, as indicated by its role, system type, and management level. Therefore, the correct answer is B. The device shown is a generic system. A LAG is a link aggregation group that bundles multiple physical interfaces into a single logical interface. A LAG can provide increased bandwidth, redundancy, and load balancing for the network traffic. In the exhibit, the device shown has four physical interfaces that are part of a LAG, as indicated by their description and li_type. The LAG is facing the leaf pair, which are the two switches that connect to the device.
NEW QUESTION # 65
What are two types of virtual networks defined inside Juniper Apstra software? (Choose two.)
Answer: C,D
Explanation:
In Apstra 5.1, a Virtual Network (VN) is Apstra's abstraction for a Layer 2 forwarding domain that groups endpoints into a logical segment across the fabric. Apstra defines virtual networks as being constructed using either VLANs or VXLANs. A VLAN-based VN represents a Layer 2 domain identified by a VLAN ID and is typically used where you want traditional VLAN semantics (often in smaller environments, migration scenarios, or designs where an overlay is not required). A VXLAN-based VN represents the same Layer 2 intent but uses a VXLAN VNI for scalable overlay segmentation, which is the common approach in EVPN-VXLAN data center fabrics.
In an IP fabric architecture, VXLAN provides encapsulation to carry tenant segments over the routed underlay, while EVPN provides the control-plane signaling for MAC/IP reachability. Junos v24.4 leaf devices act as VTEPs, mapping local VLANs/bridge-domains to VNIs and participating in EVPN for advertisement and convergence. Apstra's VN construct allows you to create the segment once (as VLAN or VXLAN type), then consistently attach it to racks, ports, and endpoints through intent-driven workflows (such as connectivity templates and virtual network assignments).
"L2 VPN" and "L3 VPN" are service provider terms and are not the VN "types" in Apstra's data center reference design. In Apstra, tenant L3 separation is modeled by routing zones (VRFs), while the VN itself is specifically either VLAN-based or VXLAN-based.
Verified Juniper sources (URLs):
https://www.juniper.net/documentation/us/en/software/apstra5.1/apstra-user-guide/topics/concept/virtual-networks.html
https://www.juniper.net/documentation/us/en/software/apstra5.1/apstra-user-guide/topics/topic-map/virtual-network-create.html
NEW QUESTION # 66
You want to make a widget appear on the main dashboard in Juniper Apstr a. In this scenario, which statement is correct?
Answer: A
Explanation:
In Juniper Apstra, a widget is a graphical element that displays data from an intent-based analytics (IBA) probe. A widget can be used to monitor different aspects of the network and raise alerts to any anomalies. A widget can be viewed by itself or added to an analytics dashboard. A dashboard is a collection of widgets that can be customized and organized according to the user's preference1.
The main dashboard in Juniper Apstra is the blueprint dashboard, which is the default view that shows the network information and configuration for the active blueprint. A blueprint is a logical representation of the network design and intent. The blueprint dashboard can display the system-generated dashboards, the user-generated dashboards, and the individual widgets that are relevant to the network2.
To make a widget appear on the main dashboard in Juniper Apstra, the user needs to set the Default toggle switch to On for the desired widget. This will add the widget to the blueprint dashboard, where it can be viewed along with other network information. The user can also remove the widget from the blueprint dashboard by setting the Default toggle switch to Off for the widget3. Therefore, the statement D is correct in this scenario.
The following three statements are incorrect in this scenario:
When creating the widget, select the Add to Blueprint Dashboard option. This is not true, because there is no such option when creating a widget in Juniper Apstra. The user can only select the widget type, the probe, and the display mode when creating a widget4. To add the widget to the blueprint dashboard, the user needs to set the Default toggle switch to On for the widget after creating it3.
On the blueprint dashboard, click on the Add Widget option. This is not true, because there is no such option on the blueprint dashboard in Juniper Apstra. The user can only view, edit, or delete the existing widgets and dashboards on the blueprint dashboard2. To add a widget to the blueprint dashboard, the user needs to set the Default toggle switch to On for the widget from the widgets table view3.
Widgets automatically appear on the blueprint dashboard. This is not true, because widgets do not automatically appear on the blueprint dashboard in Juniper Apstra. The user needs to manually add the widgets to the blueprint dashboard by setting the Default toggle switch to On for the widgets that they want to see on the blueprint dashboard3. The only exception is the widgets that are part of the system-generated dashboards, which are automatically created and added to the blueprint dashboard based on the state of the active blueprint2.
Reference:
Widgets Overview
Blueprint Summaries and Dashboard
Widgets Introduction
Create Widget
NEW QUESTION # 67
You want to gracefully take a device out of service to perform an OS upgrade.
How would you accomplish this task using Juniper Apstra?
Answer: C
Explanation:
To gracefully take a device out of service in Juniper Apstra (such as for an OS upgrade), you must go to the Active tab, select the target device, and set its Deploy Mode to Drain. This action ensures traffic is safely rerouted and gracefully removed from the device before maintenance begins.
NEW QUESTION # 68
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