Nokia 4A0-220

From a free demo to 365 days of free updates and a conditional money-back guarantee, Dumpkiller covers every stage of your Nokia GMPLS-Controlled Optical Networks preparation. Start with the 40 4A0-220 practice questions today and make 2026 the year you get certified.

Nokia 4A0-220 Exam Overview:

Nokia 4A0-220 Exam Syllabus Topics:

What Candidates Ask About the Nokia 4A0-220 Exam

Can you give me an overview of the 4A0-220 exam?

The Nokia GMPLS-Controlled Optical Networks exam (code: 4A0-220) is the official Nokia exam that leads to the Nokia Optical Networking Certification certification. It sits at the Professional level of the Nokia certification track. It is also connected with related credentials such as Nokia Optical Networks, MPLS/GMPLS Fundamentals. Passing it proves to employers that your skills have been validated by Nokia itself, which is why the 4A0-220 credential keeps showing up in job postings.

How many questions are in the 4A0-220 exam, and how long does it take?

The Nokia GMPLS-Controlled Optical Networks exam gives you 90 minutes to work through 60. Pacing matters more than most candidates expect, so before exam day, run at least one full timed session in the Dumpkiller test engine to learn how long you can afford per question. If an item stalls you, flag it and move on — coming back later beats burning five minutes on a single question.

Are there any prerequisites for the 4A0-220 exam?

According to Nokia, the following applies: Recommended knowledge of IP/MPLS networking and basic optical transport concepts. Certification policies do change from time to time, so confirm the latest requirements on the official exam page at https://www.nokia.com/networks/training/ before you register.

How do I register for the 4A0-220 exam?

You can book your Nokia GMPLS-Controlled Optical Networks exam through the official channels below:

• Nokia Training and Certification Portal

Depending on availability in your region, the exam is delivered as Online or test center-based (varies by region and provider).

What official training does Nokia recommend for the 4A0-220 exam?

Nokia lists the following training options for Nokia GMPLS-Controlled Optical Networks candidates:

• Nokia Optical Networking Learning Paths

Official courses build a solid foundation, and pairing them with the 40 practice questions from Dumpkiller shows you how ready you really are before you spend money on the exam itself.

Can I try the 4A0-220 practice questions before buying?

Yes. Dumpkiller offers a free 4A0-220 PDF demo so you can review the question style, difficulty, and explanations before committing to anything. After purchase, your Nokia GMPLS-Controlled Optical Networks material includes 365 days of free updates, and if your product expires after that, you can extend the update service at a 50% discount from your member zone.

What happens if I do not pass the 4A0-220 exam, and how is my order delivered?

If you take the corresponding 4A0-220 exam within 60 days of your purchase and do not pass, you can apply for a full refund under our 100% Money Back Guarantee, subject to a few conditions: the failed exam must be the one matching your purchase; sitting the exam within 3 days of purchase does not qualify, since that leaves too little preparation time; downloading the material without actually taking the exam does not qualify; free materials and expired orders are excluded; and the candidate name must match the payer name. To apply, send a scanned copy of your enrollment slip together with your official Score Report (PDF) within 2 days after the exam, and claims are processed within 7 days. If you would rather not take a refund, you can exchange your purchase for two free products of equal value while keeping the update service on the product you originally bought. As for delivery, everything is an instant download: your products are sent to your email within one minute of payment — contact customer service if nothing arrives within 2 hours — and there is no limit on the number of computers you can install the software on.

What topics are covered in the 4A0-220 exam?

The official Nokia GMPLS-Controlled Optical Networks syllabus is organized into 4 main domains. The first three are Control Plane Protocols, GMPLS Fundamentals, and Optical Transport Networks. For the full domain-by-domain breakdown, see the complete Exam Topics outline above.

Nokia GMPLS-Controlled Optical Networks Sample Questions:

Question 1

Which label is swapped in an MPLS label stack at an intermediate node?

A. The label with the highest value
B. The label on the bottom
C. The label with the lowest value
D. The label on the top

Question 2

What is the GMRE node address?

A. The OSPF-TE broadcast IP used to flood the link adjacency information
B. The IP address for communication between NEs
C. An IP address for CORBA communication with the NMS
D. The LMP Control Channel ID. This field contains the IPv4 address of the ingress LER as a global unique identifier

Question 3

What is the purpose of the RSVP-TE Notify message?

A. It is the node's alarm control channel
B. It is a mechanism to inform non-adjacent nodes of LSP events
C. It is confirmation of a node's resource reservation
D. It is a mechanism to inform the NM5 of L5P events

Question 4

How do you add a 3R resource to the NPA in NFM-T?

A. The resource is discovered automatically
B. The trail is provisioned with 3R constraints and discovered automatically
C. The 3R is added to the NPA through the Constraint Wizard
D. The 3R is added in the Node panel and automatically added to the NPA

Solutions: