JN0-1103 Design - Associate (JNCIA-Design) Questions and Answers

UTM (Unified Threat Management) includes content filtering capabilities, allowing you to block access to specific websites or categories. It is the most appropriate solution for implementing web filtering policies in a network security deployment.

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.

802.1X authentication is ideal for laptops and company devices, providing strong, identity-based network access control. For devices like printers and cameras that typically do not support 802.1X, MAC authentication offers a fallback method to control access based on device identity.

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.

VXLAN and MPLS are commonly used to encapsulate frames and provide Layer 2 reachability across an IP fabric. VXLAN enables L2 overlays over L3 infrastructure, while MPLS can also be used in L2VPN services to extend L2 connectivity across IP/MPLS networks.

Postman is commonly used to prototype API requests, making it ideal for testing and verifying network APIs before automation scripts are developed. It also helps in connecting network infrastructure to cloud applications by crafting and sending REST API calls to interact with cloud-based services and platforms.

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.

Cloud Access Security Brokers (CASBs) provide key functions such as visibility into cloud application usage and compliance enforcement by monitoring, auditing, and applying policies to ensure adherence to security and regulatory standards.

Modularity in network design allows for easier scalability, troubleshooting, and future upgrades by segmenting the network into functional blocks. This approach simplifies management and enhances the network's ability to adapt to changing requirements.

cSRX and vSRX are the virtualized versions of the Juniper SRX Series firewalls designed for deployment in virtual environments. The cSRX is containerized, while the vSRX is a VM-based firewall, both supporting advanced security services in cloud or virtualized data centers.

To ensure encryption of traffic between customer sites over a Layer 3 VPN, the most effective solution is IPsec with ESP (Encapsulating Security Payload). ESP provides both encryption and authentication, ensuring data confidentiality and integrity across the service provider network.

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.

In Juniper Networks' enterprise network designs, the distribution layer typically uses QFX and EX Series switches. These platforms provide the necessary scalability, performance, and Layer 3 capabilities to aggregate access layer switches and support routing between VLANs.

The exhibit shows a hierarchical structure with Leaf, Spine, and Super Spine layers. This architecture is characteristic of a 7-stage IP fabric, which is used in large-scale data centers to provide high scalability and bandwidth. It extends the 3-stage fabric by adding an additional spine layer (Super Spine) for interconnecting multiple spine layers.

These elements directly impact port density and scaling requirements in a campus switching design. Understanding the number of unmanned devices, fixed user workstations with IP phones, and standalone VoIP phones is critical for calculating the total number of access ports needed and ensuring the infrastructure can support current and future capacity demands.