Pass the Juniper Design Track Certification JN0-1103 Questions and answers with CertsForce

SD-WANallows branches to aggregate multiple WAN links(e.g., MPLS, broadband, LTE) to optimize performance and redundancy. It also supports local breakoutfor Direct Internet Access (DIA), improving cloud application performance by avoiding backhaul to a central site.

For reliable out-of-band management and recovery from misconfigurations, terminal servers should be connected through a separate network, such as a 4G LTE modem or a parallel network of independent routers. This ensures access remains available even if the production network is down.

The oversubscription ratio in an IP fabric is influenced by the number of spine nodes relative to the number of leaf nodes and their uplinks.

Removing spine nodes reduces available uplink bandwidth, increasing oversubscription.

Adding spine nodes increases available bandwidth between leafs and spines, decreasing the oversubscription ratio.

PTX Series routers are purpose-built for the core network, offering ultra-high throughput, scalability, and low-latency forwarding ideal for service provider and large-scale data center cores.

Juniper Networks supports WAN Assurance through both cloud-only and hybrid cloud models with Session Smart Routing and Mist AI. This flexibility allows organizations to choose fully cloud-managed operations or a combination of cloud and on-premises control based on their requirements.

In SD-WAN,path selections are made at the local routing engine level on each SD-WAN router based on policies defined by the centralized controller. This allows for real-time, dynamic traffic steering without requiring per-packet decisions from the controller.

A Secure Web Gateway (SWG) provides proxy services to inspect and filter web traffic and includes firewall capabilities to enforce security policies, block threats, and control access to internet resources.

To support SRX chassis cluster design, two special interface types are required:

fab (fabric) interfaces for data plane synchronization and control interfaces for control plane communication between the nodes in the cluster.

In a Clos data center fabric using IBGP as the underlay, BGP ADD-PATH must be enabled to allow multiple equal-cost paths to be advertised and installed on the leaf switches. This supports ECMP (Equal-Cost Multi-Path) routing, which is essential for optimal traffic distribution in the fabric.