Free Juniper JN0-1103 Practice Exam with Questions & Answers

To establish an accurate network baseline, it's essential to understand the expected application behavior and gather a comprehensive history of performance metrics over time. This helps identify deviations and troubleshoot issues effectively.

A private WAN link offers low latency and inherent security without requiring encryption, making it ideal for transmitting sensitive data while conserving computing resources. It ensures dedicated, reliable connectivity between sites.

In an EBGP-based IP fabric, each router is in a separate AS, so route reflection is unnecessary - each peer communicates directly. Also, since EBGP peers can form adjacencies using directly connected interfaces, an IGP is not required for underlay routing, simplifying the control plane.

In a 3-stage IP fabric, each leaf node must connect to every spine node to ensure full mesh connectivity at Layer 3 between leafs via the spine layer. This design supports ECMP and optimal traffic distribution across the fabric.

Juniper’s Session Smart Routing includes the Juniper Mist cloud, which provides cloud-managed orchestration and AI-driven insights, and the Session Smart Conductor, which centrally manages routing policies, security, and analytics across the SD-WAN fabric.

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.

SD-WAN solutions can offer comparable security and privacy to traditional MPLS by using encryption and secure tunnels. They also support local breakout for Direct Internet Access (DIA) at remote sites, improving performance for cloud applications by avoiding backhaul to a central location.

A greenfield deployment starts from scratch, with no existing infrastructure, allowing for full design freedom. A brownfield deployment involves working within an existing network environment that typically requires integration or upgrades.

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.