عراب ال IT 
امتحانات دوليه
4A0‑101
Nokia Interior Routing Protocols
About the Certification
This is an advanced certification from Nokia within the IP Routing track. It focuses primarily on Interior Routing Protocols used inside Service Provider (ISP) networks.
The certification is a natural continuation of the Nokia NRS path and emphasizes deep understanding of protocols such as OSPF and IS-IS, including how to design, configure, and analyze them within ISP networks using Nokia SR OS. It prepares candidates to work on Core and Aggregation networks and is considered an Associate / Intermediate-level network engineering certification, representing an important step before moving into professional-level routing certifications.
Main Curriculum
The curriculum is divided into six main sections
- Advanced Routing Concepts
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- Route redistribution
- Path selection and preference
- Policy control
- Fast convergence
- Interior Routing Fundamentals
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- Routing protocol concepts
- Link-State routing protocols
- Network convergence
- OSPF
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- OSPF operation
- Areas and area types
- LSA types
- Metrics and cost
- OSPFv2 / OSPFv3
- Nokia SR OS Implementation
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- OSPF configuration
- IS-IS configuration
- Monitoring and verification
- Troubleshooting commands
- IS-IS
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- IS-IS fundamentals
- Levels (L1 / L2)
- NET and areas
- Metrics and TLVs
- IS-IS for IPv4 and IPv6
- Troubleshooting
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- OSPF neighbor issues
- IS-IS adjacency problems
- Routing loops and black holes
Exam Details :
- Exam code: 4A0-101
- Exam duration: 90 minutes
- Number of questions: 40–60 questions
- Question types: Multiple-choice questions + Conceptual and technical questions + Interior routing scenarios
- Language: English
- Passing score: Approximately 60%–65%
- Exam fee: USD 125–150 (may vary by country and may include taxes)
- Certification validity: Lifetime
Do I need certifications before it ?
No, not required.
However, it is recommended to have basic networking knowledge, an understanding of IP addressing, and general familiarity with IT or telecommunications concepts.
Which certifications are recommended after this one ?
Not mandatory.
However, for those seeking a strong career path in interior routing protocols using Nokia equipment, especially OSPF, IS-IS, and EIGRP, and internal network operations, the Nokia Interior Routing Protocols certification track is the strongest option.
What are the main uses of the Nokia Interior Routing Protocols certification ?
- Nokia NRS II – Deeper focus on advanced routing and ISP technologies
- Nokia Service Routing Architect (SRA) – Professional path for advanced core network design and operations
- Nokia MPLS & VPN Certifications – Specialization in MPLS and L2/L3 VPNs
- Advanced BGP Certifications – Working on backbone and Internet routing
- Juniper JNCIS / JNCIP-SP – Expanding routing expertise in multi-vendor ISP environments
- Cisco CCNP Service Provider or Enterprise – Bridging advanced routing concepts across different vendors
An Advanced Step Toward Routing Expertise :
This certification represents a key transition from general routing knowledge to full control of interior routing protocols within service provider networks. It opens the door to working in Core networks and progressing toward professional-level ISP routing roles.
Who is this certification suitable for ?
- Candidates holding NRS I or possessing a strong foundation in IP routing
- Network engineers working in or targeting service provider environments
- NOC staff or Core Network Engineers
- Professionals specializing in routing protocols within ISP networks
- Telecommunications graduates aiming to deepen expertise in OSPF and IS-IS