Free Ericsson ECP-206 Exam Actual Questions & Explanations

Last updated on: Jun 4, 2026
Author: Josefa Oakland (Senior Certification Curriculum Developer, Ericsson Learning Services)

The ECP-206 exam validates your competency in IP networking fundamentals and Ericsson IP networking solutions. This certification, part of the Ericsson Certified Associate pathway, is designed for network professionals and technical staff who work with enterprise and service provider networks. This page outlines the exam structure, core topics, and effective study strategies to help you prepare confidently. Whether you're advancing your career or deepening your technical expertise, understanding the exam scope and question types is essential for success.

ECP-206 Exam Syllabus & Core Topics

Use this topic map to guide your study for Ericsson ECP-206 (Ericsson Certified Associate - IP Networking) within the Ericsson Certified Associate path.

  • IP Addressing (IPv4, IPv6): Demonstrate the ability to assign, validate, and manage both IPv4 and IPv6 addresses in network environments. Understand address classes, CIDR notation, and the transition mechanisms between protocol versions.
  • Subnetting: Calculate subnet masks, determine usable host ranges, and plan IP address allocation across multiple network segments. Apply subnetting to optimize address space and reduce waste in enterprise deployments.
  • Routing Protocols (OSPF, BGP, RIP): Understand the operation, configuration, and use cases for interior gateway protocols (OSPF, RIP) and exterior gateway protocols (BGP). Recognize when to deploy each protocol and how they influence network convergence and stability.
  • Network Address Translation (NAT): Configure and troubleshoot NAT in various scenarios, including static, dynamic, and port-based translation. Identify NAT impacts on application behavior and security policies.
  • Network Security and Firewalls: Apply firewall rules, access control lists (ACLs), and security policies to protect network segments. Understand stateful inspection, packet filtering, and common security threats in IP networks.
  • Network Troubleshooting: Diagnose connectivity issues using standard tools and methodologies. Isolate problems at different OSI layers, interpret diagnostic output, and implement systematic resolution approaches in production environments.
  • Ericsson IP Networking Products and Solutions: Recognize Ericsson's IP networking portfolio, including routing, security, and service delivery platforms. Understand how Ericsson solutions integrate into modern network architectures.

Question Formats & What They Test

The ECP-206 exam uses multiple question types to assess both theoretical knowledge and practical problem-solving ability. Questions progress in difficulty and emphasize real-world application of IP networking concepts.

  • Multiple Choice: Test foundational knowledge of definitions, protocol behaviors, and key terminology. Expect questions on address calculation, protocol selection, and feature identification.
  • Scenario-Based Items: Present realistic network situations where you must analyze requirements and select the best solution. Examples include choosing a routing protocol for a multi-site network, designing a NAT strategy for a hybrid cloud environment, or troubleshooting a connectivity failure.
  • Configuration and Interpretation: Evaluate network configurations or diagnostic output to identify issues or validate design decisions. Requires understanding of how settings interact and impact network behavior.

Questions are designed to reflect challenges encountered in planning, deploying, and maintaining IP networks in enterprise and service provider contexts.

Preparation Guidance

A structured study plan that maps topics to weekly goals and includes regular practice significantly improves performance. Allocate time proportionally to topic complexity and your existing knowledge gaps. Combine reading, hands-on practice, and mock exams to build confidence and test-taking speed.

  • Map IP Addressing, Subnetting, Routing Protocols, NAT, Security, Troubleshooting, and Ericsson products to weekly study blocks. Track progress and adjust pace based on practice results.
  • Work through practice question sets and review explanations for both correct and incorrect answers. Focus on understanding the reasoning, not just memorizing answers.
  • Connect concepts across network design, implementation, and operational workflows. For example, link routing protocol selection to network topology and security policies to access control requirements.
  • Complete a timed, full-length practice test under exam conditions. Review your performance, identify weak areas, and revisit those topics before exam day.
  • In the final week, focus on high-weight topics and review scenario-based questions to sharpen decision-making speed.

Explore other Ericsson certifications: view all Ericsson exams.

Get the PDF & Practice Test

Strengthen your preparation with up-to-date resources from validexamdumps.com. These materials align to ECP-206 and cover practical scenarios with clear explanations.

  • Q&A PDF with explanations: Topic-mapped questions that clarify why correct options are right and others aren't.
  • Practice Test: Realistic items, timed and untimed modes, progress tracking, and detailed review of each question.
  • Focused coverage: Aligned to IP Addressing, Subnetting, Routing Protocols, NAT, Network Security, Troubleshooting, and Ericsson IP networking products so you study what matters most.
  • Regular updates: Content refreshes that reflect syllabus changes and product updates.

Visit the exam page to download the PDF, Online Practice Test, or get a bundle discount for both formats: Ericsson Certified Associate - IP Networking.

Frequently Asked Questions

What topics carry the most weight in the ECP-206 exam?

Routing Protocols, Network Troubleshooting, and IP Addressing typically account for a significant portion of the exam. However, all seven topic areas are important; focus first on areas where you have less hands-on experience, then reinforce the heavier topics with scenario-based practice.

How do routing protocols and NAT interact in real network deployments?

NAT often sits at network boundaries and can affect how routing protocols advertise reachability. In practice, you may need to configure NAT on edge routers while managing BGP or OSPF in the core. Understanding this relationship helps you design networks where address translation doesn't break dynamic routing or security policies.

How much hands-on lab experience is needed to pass ECP-206?

Practical experience with IP addressing, subnetting, and basic routing configuration is valuable but not strictly required. Prioritize labs on subnetting exercises, OSPF and BGP configuration, and troubleshooting connectivity issues. Even simulated labs or packet-tracing tools help reinforce concepts tested on the exam.

What are common mistakes candidates make on scenario-based questions?

Many candidates rush through scenario questions without fully analyzing the requirements. Common errors include choosing a routing protocol without considering network size or topology, overlooking security implications of a NAT design, or misidentifying the OSI layer where a problem occurs. Take time to extract key facts, eliminate obviously wrong answers, and reason through the best choice.

How should I structure my final week of preparation?

Dedicate the final week to timed practice tests and review of weak areas identified in earlier attempts. Avoid learning entirely new topics; instead, refine your speed and accuracy on familiar material. Spend 20-30 minutes daily on scenario-based questions and review one troubleshooting case study per day to stay sharp.

Get All 60 Questions
Question No. 1

Which router function advertises external routes in OSPF?

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Correct Answer: B

The router function that advertises external routes in OSPF is ASBR, which stands for Autonomous System Boundary Router. An ASBR is a router that connects an OSPF domain to another routing domain, such as another OSPF domain or a different routing protocol domain. An ASBR can redistribute routes from other routing domains into OSPF as external routes, which are carried in type 5 or type 7 LSAs. External routes have two types: E1 and E2.E1 routes include the cost from the ASBR to the destination, while E2 routes only include the cost advertised by the ASBR34.


Question No. 2

What is the purpose of penultimate hop popping?

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Correct Answer: A

Penultimate hop popping (PHP) is a function performed by certain routers in an MPLS enabled network. It refers to the process whereby the outermost label of an MPLS tagged packet is removed by a label switch router (LSR) before the packet is passed to an adjacent label edge router (LER). The purpose of PHP is to reduce the load on the LER, as it saves one cycle of label lookup. The LER can forward the packet based on its IP header or another label in the stack, without having to process the outer label. PHP functionality is achieved by the LER advertising a label with a value of 3 to its neighbors.This label is defined as 'implicit-null' and informs the neighboring LSRs to perform PHP12.


Question No. 3

Review the exhibit.

A service provider wants to provide L3VPN for two customers (indicated by red and

green in the exhibit).

Referring to the exhibit, which statement is correct?

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Correct Answer: D

Referring to the exhibit, the correct statement is that the service provider's P routers are not aware of the customers' routes. This is because P routers only need to forward MPLS packets based on their labels, without looking into their IP headers or VPN information. The P routers do not have any VRFs configured for the customers, nor do they participate in MP-BGP sessions with other PE routers.The PE routers are responsible for maintaining VRFs for each customer and for exchanging VPN routes with other PE routers using MP-BGP910.


Question No. 4

What does an LDP implicit null label cause?

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Correct Answer: B

An LDP implicit null label causes penultimate hop popping by a downstream router. LDP is a protocol that distributes labels for MPLS forwarding along the shortest path calculated by an IGP. An implicit null label is a special label value of 3 that indicates that the downstream router does not need a label to forward the packet to its destination. When an upstream router receives an implicit null label from a downstream router, it removes (or pops) the label from the packet before sending it to the downstream router.This process is called penultimate hop popping (PHP) and it reduces the load on the downstream router, which can forward the packet based on its IP header or another label in the stack59.


Question No. 5

An IS-IS router has been assigned the NSAP address: 49.00F0.0100.5012.3010.00.

What is the Area ID to which the router belongs?

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Correct Answer: B

The Area ID to which the router belongs is 49.00F0.0100. The Area ID is a variable-length field in the NSAP address that identifies the area to which the router belongs. The Area ID can be between 1 and 13 bytes long, but it must start and end with an octet (8 bits). The NSAP address is composed of three parts: the authority and format identifier (AFI), the area ID, and the system ID. The AFI is a one-octet field that indicates the format and authority of the rest of the address. The system ID is a fixed-length field of six octets that uniquely identifies the router within an area. The NSAP address also has a network selector (NSEL) field, which is a one-octet field that identifies the network layer service to which a packet should be sent. For IS-IS routers, the NSEL must always be 00.

In this question, the NSAP address is 49.00F0.0100.5012.3010.00. This means that:

The AFI is 49, which indicates a private address.

The Area ID is 00F0.0100, which is four octets long and starts and ends with an octet.

The system ID is 5012.3010, which is six octets long and identifies the router within the area.

The NSEL is 00, which indicates IS-IS.

Therefore, the answer is B.


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