Deal of The Day! Hurry Up, Grab the Special Discount - Save 25% - Ends In 00:00:00 Coupon code: SAVE25
Welcome to Pass4Success

- Free Preparation Discussions
Mail Us support@pass4success.com
Location US
Mob_nav_barsMENU

Nokia 4A0-112 Exam Questions

Exam Name: Nokia IS-IS Routing Protocol Exam
Exam Code: 4A0-112
Related Certification(s): Nokia Network Routing Specialist II Certification
Certification Provider: Nokia
Actual Exam Duration: 90 Minutes
Number of 4A0-112 practice questions in our database: 40 (updated: Oct. 15, 2026)
Expected 4A0-112 Exam Topics, as suggested by Nokia :
  • Topic 1: IP Routing Review: This section measures the skills of Network Engineers and covers the fundamentals of IP routing. Candidates will learn about the basics of IP routing, how to populate the routing table and the concept of Equal-Cost Multipath Routing (ECMP). The module also discusses route redistribution and filtering using policies, as well as the architecture of the Nokia 7750 SR. Additionally, candidates will understand the IP packet header format, IP addressing, and Layer-3 interfaces on a Nokia 7750 SR.
  • Topic 2: Static Routes: In this section, the exam focuses on Network Engineers and defines the characteristics of static routes. Candidates will learn about failure detection options associated with static routes and will also explore IPv6 static routes. Understanding these concepts is crucial for effective network management.
  • Topic 3: Interior Gateway Protocols: This section is aimed at Network Analysts and provides an overview of interior gateway protocols. Candidates will study distance vectors, link-state protocols, and the shortest path first algorithm. The module also covers link-state protocol message flooding and optimizations, which are essential for efficient routing within networks.
  • Topic 4: Intermediate System-to-Intermediate System Routing Protocol (IS-IS): Targeted at IS-IS Network Engineers, this section covers the basics of IS-IS. Candidates will learn about hierarchy in a multi-area IS-IS domain, IS-IS message types, adjacency formation, and database synchronization. The module also includes advertising link-state information in single-area and multi-area IS-IS networks, route leaking, summarization, and advertising external prefixes into IS-IS.
Disscuss Nokia 4A0-112 Topics, Questions or Ask Anything Related
0/2000 characters
Submit Cancel

Anthony Flores

11 days ago
I passed by making a one page summary of key IS-IS concepts like areas, levels, and how information is flooded, then testing myself with short scenario questions. Time management mattered, so I learned to eliminate near correct answers that missed one detail.
upvoted 0 times
...

Melissa Morgan

1 month ago
I got through 4A0-112 by building a small SR OS lab and repeatedly verifying neighbors, LSPs, and SPF results with show commands. The questions felt closer to operational troubleshooting than memorizing protocol theory, and that approach helped me pass.
upvoted 0 times
...

Deborah Gonzalez

1 month ago
Route redistribution and policy questions came as multi-step scenarios where improper tagging or metric assignment caused loops or incorrect preferences. Learn redistribution direction, route tagging, route maps and administrative distances so you can propose correct fixes during the exam.
upvoted 0 times
...

Margaret Jones

2 months ago
I passed after focusing on the IP routing review and static routes first, because the exam assumes you can spot where a static route interacts with IGP decisions. The tricky part was reading scenarios carefully and not overthinking what the question actually asked.
upvoted 0 times
...

Steven Rivera

2 months ago
IS-IS questions often focused on LSP flooding, TLV interpretation and level 1 versus level 2 adjacency effects that dropped routes unexpectedly. Make sure you understand CSNP and PSNP mechanics, sequence numbers and area design, after drilling those topics I managed to pass and thanks Pass4Success for providing a good collection of exam questions for preparation in short time.
upvoted 0 times
...

Brian King

3 months ago
I managed to pass the Nokia IS-IS Routing Protocol exam by spending extra time on metric style and route preference, since that tripped me up in labs. Know how changes in configuration show up in routing outcomes, not just the syntax.
upvoted 0 times
...

Joshua Hill

4 months ago
Interior gateway protocols forced comparison questions, for example selecting between OSPF and IS-IS behaviors in convergence scenarios and metric propagation. Study SPF processing, timers, and how LSDB inconsistencies affect route selection, and I passed the exam and thanks Pass4Success for providing a good collection of exam questions for preparation in short time.
upvoted 0 times
...

Margaret Miller

5 months ago
I passed the 4A0-112 on my first try, and the biggest help was drilling IS-IS L1 versus L2 behavior until it felt automatic. The exam liked practical interpretation of adjacencies and database details more than pure definitions.
upvoted 0 times
...

Donald Rivera

5 months ago
Static routes appeared as troubleshooting questions about why a static stopped working after an interface went down or why a floating static was ignored. Practice recursive versus direct next-hop resolution, track objects and how interface qualifiers and metrics affect reachability.
upvoted 0 times
...

Barbara Walker

5 months ago
IP routing review showed up as scenario questions where you had to choose the active route from multiple overlapping prefixes and next-hop recursion. I focused on longest-prefix match, administrative distance and recursive lookup, and thanks Pass4Success for providing a good collection of exam questions for preparation in short time.
upvoted 0 times
...

Margaret Jackson

6 months ago
When the exam asked about L1/L2 route redistribution and tagging it got confusing. What helped was mapping sample topologies and practicing LSP flooding behavior.
upvoted 0 times

Dennis Johnson

6 months ago
Also watch NET and area addressing questions since a small detail in the address format changed the correct answer.
upvoted 0 times
...

Lisa Adams

6 months ago
Honestly on the Nokia 4A0-112 I stumbled on LSP sequence number behavior under rapid topology changes and drawing change timelines cleared it up.
upvoted 0 times

Stephen Wilson

5 months ago
Interestingly they mixed static route redistribution into scenarios so you had to identify where metrics and tags were applied.
upvoted 0 times

Timothy Gonzalez

5 months ago
Maybe spend extra time on metric types and wide metrics because options often tried to confuse their interpretation.
upvoted 0 times

James Campbell

5 months ago
Remember to be precise about level 1 versus level 2 adjacency rules since route leakage questions were subtle.
upvoted 0 times
...
...
...
...
...

Margot

6 months ago
My heart raced with complex IS-IS topics, yet Pass4Success provided bite-sized wins that built confidence, so keep practicing and you'll shine.
upvoted 0 times
...

Lyda

7 months ago
Clearing the Nokia IS-IS Routing Protocol exam was a great accomplishment. The IS-IS protocol section was quite demanding. I remember a question about the differences between IS-IS and OSPF in terms of area design. I hesitated a bit, but the practice questions from Pass4Success helped me navigate through it.
upvoted 0 times
...

Maile

7 months ago
I fumbled on area borders and pseudonode handling; the practice set’s adversarial questions trained my eye for border cases and correct adjacency.
upvoted 0 times
...

Iola

7 months ago
The exam’s subtle questions on LSP aging and flush behavior were brutal; Pass4Success practice exposed those trap phrases and gave me confident answers.
upvoted 0 times
...

Chauncey

7 months ago
I worried about time management and edge cases, but Pass4Success helped me pace myself and think clearly; believe in your preparation and go for it!
upvoted 0 times
...

Melodie

8 months ago
Pass4Success practice exams were a game-changer for me - focused on the right topics and passed with confidence.
upvoted 0 times
...

Shasta

8 months ago
I started anxious about tricky mappings, but Pass4Success drills boosted my accuracy and calmness; to future test-takers, stay focused and practice consistently.
upvoted 0 times
...

Armanda

8 months ago
I passed the Nokia IS-IS Routing Protocol exam, and it feels fantastic! The Static Routes section had some challenging questions. One that I found difficult was about configuring a floating static route and its implications. I wasn't entirely confident, but the practice questions from Pass4Success were a great resource.
upvoted 0 times
...

Maryann

8 months ago
L1/L2 partitioning questions killed me at first, but the practice exams exposed common traps and I learned to verify level boundaries quickly.
upvoted 0 times
...

Mollie

9 months ago
I am ecstatic to have passed the Nokia IS-IS Routing Protocol exam! The IP routing review was extensive. One question that stood out was about the differences in handling routing loops between distance-vector and link-state protocols. I was unsure about my response, but the practice questions from Pass4Success were invaluable.
upvoted 0 times
...

Irving

9 months ago
The sequence of SPF calculations under heavy networks was brutal; Pass4Success simulations forced me to trace SPF step-by-step until it clicked.
upvoted 0 times
...

Ilene

9 months ago
The initial nerves about route metrics and LSPs almost overwhelmed me, but Pass4Success clarified concepts with real scenarios, so you can succeed too—you've got this!
upvoted 0 times
...

Jeannetta

9 months ago
Aced the Nokia IS-IS exam thanks to the detailed explanations in Pass4Success practice exams. Highly recommend!
upvoted 0 times
...

Vanesa

10 months ago
Passed the Nokia IS-IS Routing Protocol exam with Pass4Success practice tests - time management was key!
upvoted 0 times
...

Johanna

10 months ago
Passing the Nokia IS-IS Routing Protocol exam was no small feat. The Interior gateway protocols section was particularly tough. I encountered a question about the differences in metric calculation between RIP and OSPF, which was tricky. Despite my doubts, the practice questions from Pass4Success helped me get through it.
upvoted 0 times
...

Hannah

10 months ago
I just passed the Nokia IS-IS Routing Protocol exam, and I'm over the moon! The IS-IS protocol section was challenging. There was a question about the role of Designated Intermediate Systems (DIS) in IS-IS, which left me second-guessing. However, the practice questions from Pass4Success were instrumental in my success.
upvoted 0 times
...

Erinn

10 months ago
Just got my Nokia IS-IS certification. Pass4Success, thank you for the quick prep!
upvoted 0 times
...

Sunshine

11 months ago
Successfully passing the Nokia IS-IS Routing Protocol exam was a great achievement for me. The Static Routes topic had some tricky questions. One that I remember was about the impact of static routes on routing tables when a network topology changes. I was a bit uncertain, but the practice questions from Pass4Success guided me well.
upvoted 0 times
...

Moira

11 months ago
The tricky bit was understanding ISIS metrics and Redistribution. Pass4Success questions mirrored real exam twists, so I learned to spot misleading metric setups.
upvoted 0 times
...

Kenia

11 months ago
I struggled with Level-1 vs Level-2 concepts and route hierarchy; the practice exams walked me through tricky edge cases and clarified how each level propagates.
upvoted 0 times
...

Reiko

11 months ago
I am thrilled to announce that I passed the Nokia IS-IS Routing Protocol exam! The IP routing review section was quite comprehensive. One question that puzzled me was about the process of route redistribution between different routing protocols. I was unsure about the exact command syntax, but the practice questions from Pass4Success were a great help.
upvoted 0 times
...

Yolando

12 months ago
My hands trembled at the exam outline, yet pass4success structured my study, built my speed, and left me confident; future test-takers, trust the process and stay persistent!
upvoted 0 times
...

Trina

12 months ago
The hardest part for me was understanding IS-IS routing adjacencies and LSP flooding; pass4success practice helped me drill the exact scenarios until the timing made sense.
upvoted 0 times
...

Aretha

1 year ago
Nokia IS-IS certification achieved! Pass4Success questions were spot on.
upvoted 0 times
...

Tamesha

1 year ago
I was nervous about the vast IS-IS specifics, but Pass4Success gave me structured practice and confidence, and now I believe any candidate can crush it with steady prep—keep pushing forward!
upvoted 0 times
...

Andra

1 year ago
Passed the Nokia IS-IS exam with ease. Pass4Success, you're the best!
upvoted 0 times
...

Carma

1 year ago
Proud Nokia IS-IS certificate holder now. Kudos to Pass4Success for the great prep material.
upvoted 0 times
...

Ariel

1 year ago
What a relief to have passed the Nokia IS-IS Routing Protocol exam! The Interior gateway protocols section was particularly daunting. I remember a question about the differences between OSPF and IS-IS in terms of scalability and convergence. I wasn't completely confident in my answer, but the preparation with Pass4Success practice questions paid off.
upvoted 0 times
...

Merissa

1 year ago
I just cleared the Nokia IS-IS Routing Protocol exam, and it feels amazing! The Intermediate system-to-intermediate system routing protocol (IS-IS) section was intense. There was a tricky question about the differences between Level 1 and Level 2 routing in IS-IS. I hesitated a bit on that one, but the practice questions from Pass4Success really helped me prepare.
upvoted 0 times
...

Virgie

1 year ago
Nailed the Nokia IS-IS certification. Pass4Success made it possible in such short notice.
upvoted 0 times
...

Iluminada

1 year ago
Nokia IS-IS exam conquered! Pass4Success provided exactly what I needed.
upvoted 0 times
...

Glenn

1 year ago
Successfully completed the Nokia IS-IS exam. Pass4Success, you're a lifesaver!
upvoted 0 times
...

Janey

1 year ago
Nokia IS-IS certified! Pass4Success helped me prepare in record time.
upvoted 0 times
...

Narcisa

2 years ago
Passed my Nokia IS-IS exam with flying colors. Pass4Success questions were invaluable.
upvoted 0 times
...

Ilda

2 years ago
Nokia IS-IS certification in the bag! Pass4Success made prep quick and efficient.
upvoted 0 times
...

Latrice

2 years ago
Aced the Nokia IS-IS exam today. Pass4Success materials were a huge time-saver!
upvoted 0 times
...

Cherry

2 years ago
Thank you! I'm thrilled to have passed. The exam was challenging but fair, covering a wide range of IS-IS topics. I'm grateful to Pass4Success for providing relevant exam questions that helped me prepare efficiently in a short time. Their materials were spot-on and really boosted my confidence going into the exam.
upvoted 0 times
...

Leonora

2 years ago
Congratulations on passing the Nokia Certified: Nokia IS-IS Routing Protocol exam! Your thorough preparation has paid off.
upvoted 0 times
...

Shawna

2 years ago
Just passed the Nokia IS-IS Routing Protocol exam! Thanks Pass4Success for the spot-on practice questions.
upvoted 0 times
...

Rosalia

2 years ago
Passing the Nokia IS-IS Routing Protocol exam was a thrilling experience. The exam was challenging, especially the section on Static Routes. One question that caught me off guard was about configuring a static route with a specific next-hop IP address and administrative distance. I wasn't entirely sure about the administrative distance part, but thanks to the practice questions from Pass4Success, I managed to pass.
upvoted 0 times
...

Free Nokia 4A0-112 Exam Actual Questions

Note: Premium Questions for 4A0-112 were last updated On Oct. 15, 2026 (see below)

Question #1

When multiple routing protocols offer a route for the same prefix, what part of the router is in charge of deciding which route to make active?

Reveal Solution Hide Solution
Correct Answer: B

The routing table manager (RTM) is responsible for selecting the best route when multiple routing protocols provide a route for the same destination prefix. It makes the decision on which route to add to the routing table based on the administrative distance, metric, and other criteria.


Question #2

What do the address resolution protocol (ARP) for IPv4 and the neighbor discovery procedures for IPv6 have in common?

Reveal Solution Hide Solution
Correct Answer: C

ARP for IPv4 and Neighbor Discovery Protocol (NDP) for IPv6 are both used to map a device's IP address to its MAC address. This is essential for communication within a local network.

ARP is used in IPv4 networks, and NDP performs a similar function in IPv6 networks, ensuring devices can communicate effectively on the same network segment.


Question #3

Which of the following statements about the IP forwarding process on a router is TRUE?

Reveal Solution Hide Solution
Correct Answer: B

During the IP forwarding process, routers use the routing table to determine the next hop based on the destination IP address. The source IP address is not directly involved in the lookup process for forwarding.

The ARP table is used to map IP addresses to MAC addresses, specifically for resolving the MAC address of the next hop (destination MAC address) for forwarding packets within the local network.


Question #4

Refer to the exhibit.

Routers R1 through R4 in the diagram have established IS-IS adjacencies. Router R1 is L1/L2 and is the DIS of its two broadcast interfaces. How many LSPs will it generate?

Reveal Solution Hide Solution
Correct Answer: B

Router R1 is configured as L1/L2, meaning it is part of both Level 1 and Level 2 IS-IS routing areas. This means R1 will generate two types of LSPs:

Level 1 LSP (for the local area 49.0001) to advertise its local topology to other Level 1 routers.

Level 2 LSP (for the backbone area 49.0002) to advertise the global network topology to Level 2 routers.

R1 also has two broadcast interfaces, and as the Designated Intermediate System (DIS) on these interfaces, it will generate an LSP for each interface (one per broadcast link).

This results in three total LSPs:

A Level 1 LSP for the local area (49.0001).

A Level 2 LSP for the backbone area (49.0002).

An LSP for each of the two broadcast interfaces, which may include interface-related topology information.


Question #5

Refer to the exhibit.

All routers in the diagram are running a link-state routing protocol. Before the link failure, all routers have operational adjacencies with each other and there is a BFD session between routers R1 and R3. After the link failure, which of the following affects the routing protocol's convergence time?

Reveal Solution Hide Solution
Correct Answer: C

BFD (Bidirectional Forwarding Detection) is used to detect link failures quickly and helps improve convergence time in link-state routing protocols. The BFD session between routers R1 and R3 allows them to detect the failure of the link between them more quickly than the regular routing protocol hello timers. The transmit interval, receive interval, and multiplier settings determine how fast BFD detects a failure and triggers the routing protocol to converge, which directly impacts the convergence time.


Explore Other Nokia Exams

Unlock Premium 4A0-112 Exam Questions with Advanced Practice Test Features:
  • Select Question Types you want
  • Set your Desired Pass Percentage
  • Allocate Time (Hours : Minutes)
  • Create Multiple Practice tests with Limited Questions
  • Customer Support
Get Full Access Now

Save Cancel