JNCIE-DC (JPR-981) Practice Exam

JNCIE-DC (JPR-981) Practice Exam

The JNCIE-DC (Juniper Networks Certified Expert – Data Center) is a high-level certification that proves someone has expert skills in designing, configuring, and troubleshooting large-scale data centers. In simple terms, it’s about showing that you can manage and optimize the complex systems that allow businesses to run their online services, store data, and connect globally.

This certification focuses on advanced networking, virtualization, and automation in modern data centers. It is designed for experienced professionals who want to demonstrate their deep knowledge of Juniper’s technologies and their ability to handle real-world challenges in enterprise-level IT environments.

Who should take the Exam?

This exam is ideal for:

• Network Engineers specializing in data centers
• Senior Systems Engineers
• Data Center Architects
• Network Consultants
• Cloud Infrastructure Engineers
• Technical Leads in IT organizations
• IT Managers overseeing large-scale infrastructure
• Professionals aiming for expert-level networking roles

Skills Required

• Strong knowledge of networking fundamentals
• Hands-on experience with Juniper platforms
• Familiarity with automation and scripting (Python, Ansible, etc.)
• Understanding of virtualization and cloud networking
• Analytical and problem-solving skills
• Experience with troubleshooting complex systems

Knowledge Gained

• Advanced understanding of Juniper data center solutions
• Expertise in automation for scalable operations
• Strong troubleshooting methods for large networks
• Best practices in security, virtualization, and cloud integration
• Real-world skills to design and maintain enterprise-level data centers

Course Outline

The JNCIE-DC (JPR-981) Exam covers the following topics -

1. Layer 3 Underlay

In a controller-less data center, a successful candidate will:

• Build, deploy, and troubleshoot an IP fabric
• Use routing policies to ensure that only required addresses are advertised
• Use all available links for forwarding traffic

In a data center managed by Juniper® Apstra software, a successful candidate will:

• Build, deploy, and troubleshoot an IP fabric
• Use routing policies to ensure that only required addresses are advertised
• Create and use custom tags
• Restrict all fabric device configurations to Apstra
• Use all available links for forwarding traffic

2. Overlay

In a controller-less data center, a successful candidate will:

• Deploy, manage, and troubleshoot an EBGP- or IBGP- signaled EVPN-VXLAN overlay
• Establish communication between multihomed and single-homed end devices
• Create multiple separate Layer 2 and Layer 3 tenant environments
• Enable routing between different Layer 3 tenants
• Configure and optimize multicast communication

In a data center managed by Apstra, a successful candidate will:

• Deploy, manage, and troubleshoot an EBGP-signaled EVPN- VXLAN overlay
• Establish communication between multihomed and single-homed end devices
• Create multiple separate Layer 3 tenant environments
• Enable routing between different Layer 3 tenants

3. Date Center Interconnect (DCI)

• Deploy, manage, and troubleshoot a DCI solution between a Juniper Apstra-managed data center and a controller-less data center using Type 2 or Type 5 EVPN routes to enable tenant communication between data centers without the use of Apstra config lets
• Deploy, manage, and troubleshoot a DCI solution between two controllers data centers using seamless VXLAN-to-VXLAN stitching to enable tenant communication between data centers
• Identify incoming VXLAN virtual network identifier (VNI) information from an unmanaged preconfigured peer device.

4. Security

• Deploy, manage, and troubleshoot security features that protect the data center infrastructure and edge device
• Restrict device access from unauthorized protocols and networks
• Monitor and log excessive traffic events
• Monitor and track various spanning-tree messages and take required actions according to the defined security requirements

5. Class of Service (CoS)

• Configure and troubleshoot CoS settings for server traffic connected to leaf nodes

6. Management

• Use tags and probes to track critical services and trigger Apstra anomalies when specific conditions are met or exceeded
• Create and use custom Apstra configlets
• Enable subsecond link failure detection using Bidirectional Forwarding Detection (BFD) between leaf and external devices
• Implement date and time synchronization for devices
• Configure local and remote system logging
• Enable streaming telemetry on custom ports
• Use SNMP monitoring in the data centers