Nokia Optical Network
Services Expert Lab Exam

Exam name: Nokia Optical Network Services Expert Lab Exam

Exam number: ONSE-LE

Mandatory prerequisites: 

• Nokia Optical Networking Fundamentals (4A0-205)
• Nokia Optical Network Management with NFM-T (4A0-210)
• Nokia Optical Diagnostics and Troubleshooting (4A0-265)

And one of the following elective exams:

• Nokia Integrated Packet Transport over WDM (4A0-230)
• Nokia GMPLS-controlled Optical Networks (4A0-220)
• Nokia Optical Transport for Mobile Services (4A0-240)

Exam duration: 5.5 Hours

Number of questions: Practical Exam

Language: English

Price: €900

Candidates can prepare for the exam by taking the following instructor-led hands-on courses:

Recommended courses 

• Nokia Optical Networking Fundamentals
• Nokia Optical Network Management with NFM-T
• Nokia Optical Diagnostics and Troubleshooting

Elective courses 

• Nokia Integrated Packet Transport over WDM
• Nokia GMPLS-controlled Optical Networks 
• Nokia Optical Transport for Mobile Services

Alternatively, candidates can choose to self-study by purchasing the course materials and lab guides associated with the courses mentioned above.

Purchase course materials

Credit toward certification:

Nokia Optical Network Services Expert Certification

What to expect on the Nokia Optical Network Services Expert lab exam

The Nokia Optical Network Services Expert Lab Exam is a five-and-a-half-hour practical lab exam that tests a candidate's ability to manage optical networks based on the Nokia 1830 Photonic Service Switch (PSS), Nokia 1830 Versatile WDM Module (WDM), 1830 Engineering and Planning Tool (EPT), and Network Functions Manager – Transport (NFM-T).

To register for the Nokia Optical Network Architect Lab Exam, candidates must have successfully completed the following prerequisite written exams: 

• Nokia Optical Networking Fundamentals (4A0-205)
• Nokia Optical Network Management with NFM-T (4A0-210)
• Nokia Optical Diagnostics and Troubleshooting (4A0-265)

And one of the following elective exams:

• Nokia Integrated Packet Transport over WDM (4A0-230)
• Nokia GMPLS-controlled Optical Networks (4A0-220)
• Nokia Optical Transport for Mobile Services (4A0-240)

The lab exam covers topics presented in the Optical Network Certification courses corresponding to the written exams listed above, including one elective, depending on the candidate’s selection.

The lab exam consists of five distinct sections, covering network management systems, 1830 diagnostics and troubleshooting, integrated packet transport, GMPLS-controlled networks, and Mobile Services. Depending on the selected courses and written exams, the student will go through the first two sections (1-2 below) and choose only one of the three remaining sections (3-5 below). To pass the exam, the candidate must achieve a cumulative score of 80% across the three selected sections. They are independent of each other; the candidate may work on any section at any time during the exam session. The candidate must have adequate hands-on experience to maintain a reasonable pace during the exam and ensure that all required tasks can be completed within the allotted time.
 

Exam topics

Exam topics are summarized below. Candidates should be able to perform all tasks, understand all topics and work with all features. However, it is possible that some topics are not covered in the exam.

1. Network Management

• Determine what should be created to satisfy specific requirements in terms of trails and services, given constraints and features to be provided.
• Create MP and GMPLS-protected services and related infrastructures.
• Enable optical and electrical protection mechanisms.

2. Diagnostics and troubleshooting

• Diagnose and resolve multiple issues in an 1830 PSS-32 network, including:
  • Broken or damaged fibers, both internal and external
  • Span loss issues
  • Cross connect configuration issues
  • Commissioning issues
  • Unexpected or missing channels
• Use multiple troubleshooting tools, including:
  • Alarms, conditions and logs
  • Performance Monitoring measurements (PMs)
  • Wavelength Tracker (WT)

3. Integrated Packet Transport

• Determine what should be created to satisfy specific requirements in terms of trails and services, given constraints and features to be provided
• Create CE services based on the architectures presented in the course (such as MPLS-TP, provider bridge, and so on).
• Manage protections such as ERP, LAG, and so on.

4. GMPLS-controlled Networks

• Determine what should be created to satisfy specific requirements in terms of trails and services, given constraints and features to be provided.
• Create services and related trails and/or tunnels to set up GMPLS L0, L1 and MRN networks.

5. Mobile Services

• Troubleshoot an existing Fronthaul, VWM-based network.
• Configure consistent parameters in terms of CWDM/DWDM frequencies, CPRI rates, software loopbacks, and so on to have an e2e CPRI flow from RRH to BBU.

Exam notes and tips

The Nokia Optical Network Services Expert Lab Exam is a five-and-a-half-hour exam that covers a broad range of topics. The five-and-a-half-hour timeframe excludes a mandatory 30-minute lunch break and 30 minutes of break time to be taken at the candidate's discretion. In total, the candidate could be on-site for up to six hours and a half including breaks.

During the exam, candidates will be allowed to access soft copies of the product manuals for reference. The product manuals will be accessible from the PC used for the exam equipment. No other notes, textbooks course materials or reference materials are allowed during the exam. Electronic devices including cell phones are not allowed in the examination room. Candidates will be provided with pen and paper during the exam.

Here are some tips to help you successfully prepare:

1. Ensure that you completely understand and are familiar with all of the topics in the student guides and labs of the recommended ONC courses in the exam preparation tab.
2. For each exam section, a recommended time, and mark allocation are provided to help you manage your time.
3. If you are unclear about anything in the exam, ask the proctor for clarification. The exam proctor will attempt to clarify anything that may be ambiguous. Do not expect the proctor to provide other information during or after the exam.
4. Be sure to allow yourself adequate time to verify your work on each exam section.
5. Save your work often. Your exam mark will be based on your final submission. 
6. Relax and read each question very carefully. Be thorough in your work but remember to pace yourself appropriately.

Lab exams are delivered virtually or at select Nokia locations.  To take the exam virtually, you must meet the system requirements below, or you can visit our lab exam registration page to view available locations for in-person delivery.

Virtual system requirements:

• A webcam
• A microphone
• A single monitor (only one monitor is allowed)
• Minimum 4 Mbps end-to-end internet connection (a wired network connection is preferred)
• Windows 10.0
• Microsoft Edge 11.0
• 60 GB of free hard disk space
• 12 GB of RAM (6GB dedicated allocated memory for VMPlayer)Administrative privileges on the PC
• Hardware virtualization support at CPU level on the PC (Intel VTx)