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The Nokia NRS II Composite Exam: OSPF version (4A0-C04)

Passing Nokia Nokia Network Routing Specialist II (NRS II) exam ensures for the successful candidate a powerful array of professional and personal benefits. The first and the foremost benefit comes with a global recognition that validates your knowledge and skills, making possible your entry into any organization of your choice.

4A0-C04 pdf (PDF) Q & A

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4A0-C04 PDF + Test Engine (PDF+ Test Engine)

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4A0-C04 Test Engine (Test Engine)

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4A0-C04 Exam Dumps
  • Exam Code: 4A0-C04
  • Vendor: Nokia
  • Certifications: Nokia Network Routing Specialist II (NRS II)
  • Exam Name: Nokia NRS II Composite Exam: OSPF version
  • Updated: Mar 25, 2026 Free Updates: 90 days Total Questions: 298 Try Free Demo

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In 2026, Nokia uses variable topologies. Basic dumps will fail you.

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Nokia 4A0-C04 Exam Domains Q&A

Certified instructors verify every question for 100% accuracy, providing detailed, step-by-step explanations for each.

Question 1 Nokia 4A0-C04
QUESTION DESCRIPTION:

Which of the following fields does NOT appear in the MPLS label header?

  • A.

    Label

  • B.

    Frame check sequence

  • C.

    Traffic Class (previously called Experimental)

  • D.

    Time To live

  • E.

    Bottom of stack bit

Correct Answer & Rationale:

Answer: B

Question 2 Nokia 4A0-C04
QUESTION DESCRIPTION:

Click the exhibit.

4A0-C04 Q2

AS 65550 owns CIDR block 10.64.0.0/12. Router R6 advertises the aggregate 10.64.0.0/12 to AS 65541 with "as-set" enabled. Which of the following is TRUE regarding the aggregate route received by router R7?

  • A.

    The AS Path is set to 65540, and the Atomic Aggregate flag is set.

  • B.

    The AS Path is set to 65540 65550, and the Atomic Aggregate flag is set.

  • C.

    The AS Path is set to 65540 65550, and the Atomic Aggregate flag is not set.

  • D.

    The AS Path is set to 65550, and the Atomic Aggregate flag is not set.

Correct Answer & Rationale:

Answer: C

Question 3 Nokia 4A0-C04
QUESTION DESCRIPTION:

Click on the exhibit.

4A0-C04 Q3

The path of a fast reroute protected LSP is R1-R2-R3. Which of the following about the protected LSP path is TRUE?

  • A.

    All routers along the path, R1, R2, and R3 can be PLRs.

  • B.

    If the R1-R2 link fails, router R4 becomes an MP.

  • C.

    If the R2-R3 link fails, router R3 becomes a PLR.

  • D.

    Router R1 is the LSP head-end and can be a PLR.

Correct Answer & Rationale:

Answer: D

Question 4 Nokia 4A0-C04
QUESTION DESCRIPTION:

Click the exhibit button.

4A0-C04 Q4

If router R2 redistributes the IS-IS route to 192.168.3.0/24 into OSPF, router R3 preference of these two routes? Choose two answers.

  • A.

    The OSPF internal preference

  • B.

    The IS-IS Level 1 internal preference

  • C.

    The IS-IS Level 2 internal preference

  • D.

    The OSPF external preference

  • E.

    The IS-IS Level 2 external preference

  • F.

    The IS-IS Level 1 external preference

Correct Answer & Rationale:

Answer: B, D

Question 5 Nokia 4A0-C04
QUESTION DESCRIPTION:

What is the default Nokia 7750 SR TTL of a BGP advertisement between confederation members?

  • A.

    1

  • B.

    32

  • C.

    64

  • D.

    255

Correct Answer & Rationale:

Answer: A

Question 6 Nokia 4A0-C04
QUESTION DESCRIPTION:

Click on the exhibit. After the Isp-ping command is executed, which of the following best describe the router's action?

  • A.

    MPLS Echo Request packets are sent within the RSVP-TE tunnel that is signaled for "lsp-toR2".

  • B.

    MPLS Echo Request packets are sent within the LDP tunnel that is signaled for Mlsp-toR2".

  • C.

    MPLS Echo Request packets are IP-routed to the destination address of "lsp-toR2".

  • D.

    MPLS Echo Request packets are sent to the destination address of "lsp-toR2" over TCP.

Correct Answer & Rationale:

Answer: A

Question 7 Nokia 4A0-C04
QUESTION DESCRIPTION:

Click the exhibit.

4A0-C04 Q7

This is output from router R4. Service 333 is a VPLS. Why does peer 10.10.10.1 not have an EgrLbl?

  • A.

    The SDP to 10.10.10.1 on router R4 is shutdown.

  • B.

    Router R4 has not sent a label to router R1 (10.10.10.1) yet.

  • C.

    10.10.10.1 has a different service MTU set.

  • D.

    10.10.10.1 has not sent a label to router R4 yet.

Correct Answer & Rationale:

Answer: D

Question 8 Nokia 4A0-C04
QUESTION DESCRIPTION:

Which of the following is TRUE when the explicit null is implemented?

  • A.

    The penultimate router will forward packets to the eLER, based on the IP header.

  • B.

    The eLER will receive packets with a top label value of 0.

  • C.

    The eLER will receive packets with a top label value of 3.

  • D.

    The penultimate router will pop the top label from the packets.

Correct Answer & Rationale:

Answer: B

Question 9 Nokia 4A0-C04
QUESTION DESCRIPTION:

Click on the exhibit.

4A0-C04 Q9

The partial command output from an Nokia 7750 SR is shown. Which of the following about this LSP path is TRUE?

  • A.

    R4 (10.10.10.4) has established a link protection tunnel.

  • B.

    R6 (10.10.10.6) has established a link protection tunnel.

  • C.

    R2 (10.10.10.2) has established a node protection tunnel.

  • D.

    R1 (10.10.10.1) has not established a node protection tunnel.

Correct Answer & Rationale:

Answer: A

Question 10 Nokia 4A0-C04
QUESTION DESCRIPTION:

Which LSA type is not found in point-to-point only OSPF networks?

  • A.

    Type 1 Router LSA

  • B.

    Type 2 Network LS A

  • C.

    Type 3 Summary LSA

  • D.

    Type 5 External LSA

Correct Answer & Rationale:

Answer: B

A Stepping Stone for Enhanced Career Opportunities

Your profile having Nokia Network Routing Specialist II (NRS II) certification significantly enhances your credibility and marketability in all corners of the world. The best part is that your formal recognition pays you in terms of tangible career advancement. It helps you perform your desired job roles accompanied by a substantial increase in your regular income. Beyond the resume, your expertise imparts you confidence to act as a dependable professional to solve real-world business challenges.

Your success in Nokia 4A0-C04 certification exam makes your visible and relevant in the fast-evolving tech landscape. It proves a lifelong investment in your career that give you not only a competitive advantage over your non-certified peers but also makes you eligible for a further relevant exams in your domain.

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Nokia 4A0-C04 Nokia Network Routing Specialist II (NRS II) FAQ

What are the prerequisites for taking Nokia Network Routing Specialist II (NRS II) Exam 4A0-C04?

There are only a formal set of prerequisites to take the 4A0-C04 Nokia exam. It depends of the Nokia organization to introduce changes in the basic eligibility criteria to take the exam. Generally, your thorough theoretical knowledge and hands-on practice of the syllabus topics make you eligible to opt for the exam.

How to study for the Nokia Network Routing Specialist II (NRS II) 4A0-C04 Exam?

It requires a comprehensive study plan that includes exam preparation from an authentic, reliable and exam-oriented study resource. It should provide you Nokia 4A0-C04 exam questions focusing on mastering core topics. This resource should also have extensive hands on practice using Nokia 4A0-C04 Testing Engine.

Finally, it should also introduce you to the expected questions with the help of Nokia 4A0-C04 exam dumps to enhance your readiness for the exam.

How hard is Nokia Network Routing Specialist II (NRS II) Certification exam?

Like any other Nokia Certification exam, the Nokia Network Routing Specialist II (NRS II) is a tough and challenging. Particularly, it's extensive syllabus makes it hard to do 4A0-C04 exam prep. The actual exam requires the candidates to develop in-depth knowledge of all syllabus content along with practical knowledge. The only solution to pass the exam on first try is to make sure diligent study and lab practice prior to take the exam.

How many questions are on the Nokia Network Routing Specialist II (NRS II) 4A0-C04 exam?

The 4A0-C04 Nokia exam usually comprises 100 to 120 questions. However, the number of questions may vary. The reason is the format of the exam that may include unscored and experimental questions sometimes. Mostly, the actual exam consists of various question formats, including multiple-choice, simulations, and drag-and-drop.

How long does it take to study for the Nokia Network Routing Specialist II (NRS II) Certification exam?

It actually depends on one's personal keenness and absorption level. However, usually people take three to six weeks to thoroughly complete the Nokia 4A0-C04 exam prep subject to their prior experience and the engagement with study. The prime factor is the observation of consistency in studies and this factor may reduce the total time duration.

Is the 4A0-C04 Nokia Network Routing Specialist II (NRS II) exam changing in 2026?

Yes. Nokia has transitioned to v1.1, which places more weight on Network Automation, Security Fundamentals, and AI integration. Our 2026 bank reflects these specific updates.

How do technical rationales help me pass?

Standard dumps rely on pattern recognition. If Nokia changes a single IP address in a topology, memorized answers fail. Our rationales teach you the logic so you can solve the problem regardless of the phrasing.