The Nokia IS-IS Routing Protocol (exam code 4A0-112) is the exam you pass to earn the Nokia Service Routing Certification (SRC) / Service Routing specialization certification, a credential at the Professional level. It is also connected with related credentials such as Nokia Service Routing Certification (SRC), Nokia Service Routing Architect (SRA). If you are mapping out a certification path with Nokia, this exam is a milestone worth planning around.

The 4A0-112 exam includes Not publicly disclosed questions, and you have Not publicly disclosed (commonly 60–90 minutes in Nokia SRC exams) to complete them. With that many questions on the clock, pacing is part of the challenge: divide your time into rough blocks as you go, and flag the items that stall you so you can circle back at the end instead of burning minutes on a single question. A week or two before your exam date, sit at least one full timed session in the 2Pass4sure test engine under the same time limit, so the pace feels familiar rather than frantic on the day.

You need Not publicly disclosed to pass the 4A0-112 exam, and the official registration fee is Varies by region and testing provider (typically USD-based Pearson VUE pricing). That fee is due again in full for every retake, which makes thorough preparation the cheaper investment by far. Before you book your seat, test yourself with the 2Pass4sure practice questions until you are scoring comfortably above the passing mark on a consistent basis — it is the simplest way to avoid paying for the same exam twice.

Basic understanding of IP routing and networking fundamentals is recommended; prior Nokia Service Routing knowledge is helpful but not strictly required.

Eligibility rules can be adjusted by Nokia over time, so before you register, confirm the current requirements on the official exam page: view the official 4A0-112 exam information.

You can book the 4A0-112 exam through the official registration channels below:

• Nokia Training and Certification Portal
• Pearson VUE Nokia Exams

How the exam is taken: Typically delivered via Pearson VUE testing centers or online proctored exam (depending on region and availability)..

Nokia lists the following official training options for candidates preparing for this exam:

• Nokia Service Routing Training (IS-IS routing modules)

Once you have worked through the training, measure your readiness with the 42 practice questions from 2Pass4sure — they show you exactly which topics still need attention before you book the exam.

Yes. 2Pass4sure offers a free PDF demo of the 4A0-112 practice questions, so you can judge the quality of the material firsthand before paying anything. Every purchase also includes 365 days of free updates — if Nokia changes the exam during that year, your material changes with it. And when the free update period expires, you can extend it at a 50% discount from within your member zone.

Every 4A0-112 purchase at 2Pass4sure is backed by a 100% Money Back Guarantee: if you take the corresponding exam within 60 days of your purchase and do not pass, you can apply for a full refund. The guarantee has clear conditions — it does not apply if you sit the exam within 3 days of purchase, if you downloaded the material but never actually took the exam, or to free materials and expired orders, and the candidate name must match the payer name. To file a claim, send a scan of your exam enrollment slip together with your official Score Report PDF within 2 days of the exam; claims are processed within 7 days. If you would rather not take a refund, you can exchange the product instead and receive two additional exam preparation products of equal value for free, while your original product keeps its update service. Delivery itself is instant: your material is available for download right after payment and is also sent to your email within one minute — if it has not arrived within 2 hours, contact our customer service. There is no limit on how many computers you can install it on.

The official Nokia IS-IS Routing Protocol outline divides the exam content into 7 main domains. The first three are:

• IS-IS Fundamentals
• IS-IS Routing Levels
• Troubleshooting and Operations

That is only the headline view — scroll back up to the Exam Topics section on this page for the complete domain-by-domain breakdown before you plan your study schedule.