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| Certification Vendor: | Alcatel-Lucent / Nokia |
|---|---|
| Exam Name: | Virtual Private LAN Services |
| Exam Number: | 4A0-105 |
| Real Exam Qty: | 60 |
| Certificate Validity Period: | 3 years |
| Passing Score: | 80% |
| Available Languages: | English |
| Exam Format: | Scenario-based, Multiple Choice |
| Exam Duration: | 90 minutes |
| Related Certifications: | Nokia Network Routing Specialist II Nokia Service Routing Architect |
| Exam Price: | Approx. $125 USD |
| Recommended Training: | Nokia Virtual Private LAN Services Course |
| Exam Registration: | Nokia SRC Program Exam Registration via Pearson VUE |
| Sample Questions: | ![]() |
| Exam Way: | Computer-based testing (onsite at authorized test centers) |
| Pre Condition: | None required; recommended NRS I / 4A0-101 knowledge |
| Official Syllabus URL: | https://networks.nokia.com/src/exam/virtual-private-lan-services |
| Section | Weight | Objectives |
|---|---|---|
| Resiliency and Redundancy | 20% | - LAG and MC-LAG for VPLS - Loop control and STP integration - Active/standby pseudowire redundancy - Multi-homing protection mechanisms |
| VPLS Configuration and FDB Management | 20% | - MTU and frame handling considerations - FDB maintenance and monitoring tools - Flooding, learning, and forwarding database (FDB) - Basic VPLS configuration on Nokia SR OS |
| VPLS Architecture and Basics | 20% | - VPLS definition, benefits, and use cases - Control plane and data plane operation - PE, P, and CE router roles |
| Scalable and Advanced VPLS | 20% | - Management VPLS (M-VPLS) operation - Provider Backbone Bridging (PBB) and MAC address scaling - Hierarchical VPLS (H-VPLS) design and benefits - BGP auto-discovery for VPLS |
| OAM, Monitoring and Troubleshooting | 10% | - Performance and service verification - Common issues and resolution procedures - VPLS OAM tools and diagnostics |
| Service Fundamentals Review | 10% | - Ethernet and MPLS review - Service components: SAP, SDP, and pseudowire concepts |
Alcatel-Lucent Virtual Private LAN Services is an official Alcatel-Lucent / Nokia exam, catalogued under the code 4A0-105. A pass awards you the Nokia Service Routing Certification (SRC) certification at the Professional level. It also supports progress toward Nokia Service Routing Architect, Nokia Network Routing Specialist II. Demand for this credential has stayed strong because it validates skills employers can use from day one.
The Alcatel-Lucent Virtual Private LAN Services exam packs 60 questions into 90 minutes. Candidates rarely fail because of one impossible topic; they fail because ten minutes vanished on three stubborn questions. Build a triage habit now: answer, flag, move on, return later. Timed full-length sessions in the ValidDumps test engine are the most honest way to practice that discipline before it counts.
You pass Alcatel-Lucent Virtual Private LAN Services at 80%, and the official registration fee stands at Approx. $125 USD. One detail worth internalizing: there is no retake discount, so a second sitting costs another full Approx. $125 USD. Use the ValidDumps practice tests as your gauge and book only when your results clear the requirement with a repeatable margin, not a one-off peak.
None required; recommended NRS I / 4A0-101 knowledge
Vendor policies shift over time, so confirm the current entry conditions before paying any registration fee; the official exam page is the authoritative source.
You can sign up for Alcatel-Lucent Virtual Private LAN Services through the official registration points listed here.
Regarding format, the exam is delivered Computer-based testing (onsite at authorized test centers).
Alcatel-Lucent / Nokia recommends the following training for Alcatel-Lucent Virtual Private LAN Services candidates.
Course content builds understanding, but the exam grades answers. Bridge the two with the 156 practice questions in the ValidDumps 4A0-105 package, and the theory starts converting into points.
Yes. A free demo of the Alcatel-Lucent Virtual Private LAN Services material is available on this page, so you can verify the quality of the questions and the expert-edited answers yourself. Once you purchase, updates are free for 365 days and the newest version is emailed to you automatically as it releases; after expiry, extending the update service costs 50% of the regular price.
A 100% money-back guarantee covers your purchase under defined conditions. If you take the Alcatel-Lucent Virtual Private LAN Services exam within 60 days of buying and fail, you can claim a full refund, provided the exam matches your product. Attempts within 3 days of purchase are ineligible, as are downloaded-but-unused products, free materials, and expired orders, and the candidate name must match the payer name. Submit a scanned enrollment slip and the official Score Report PDF within 2 days of the exam; claims are processed within 7 days. Alternatively, you may exchange rather than refund: two other exam products of equal value, free, with the update service on your original purchase kept intact.
Delivery is instant: files unlock for download upon successful payment and are automatically emailed to you within one minute. If nothing arrives within 2 hours, check spam and contact us by email or online service. Installation is unlimited across your computers.
Alcatel-Lucent Virtual Private LAN Services spans 6 official domains. The most heavily weighted include Service Fundamentals Review (10%), VPLS Configuration and FDB Management (20%), and OAM, Monitoring and Troubleshooting (10%). The full topic list is published above on this page; let the weightings decide where your next study hour goes.
Question 1
Which of the following functions must a PE router support when participating in a VPLS service? (Choose 3)
A. Must discard frames with an unknown destination MAC
B. MAC learning
C. MSTP
D. Frame forwarding
E. Frame replication
F. Frame fragmentation
Question 2
Click on the exhibit below.
If the device connected to PE-A in Metro A sends a frame to PE-A that requires replication within the VPLS which devices is PE-A responsible for replicating the frame to?
A. PE-A must replicate the frame to all devices participating in the VPLS
B. All of the above
C. PE-A must replicate the frame to all devices in the Metro A
D. PE-A must replicate theframe to all PEs within Metro A
Question 3
What is the default service-mtu for a VPLS service?
A. It depends on the access port MTU.
B. 1500
C. 1518
D. It depends on the network port MTU.
E. 1514
Question 4
Click on the exhibit below.
If the SDP between R2 and R1 goes down, what devices will be reachable from R2 through the VPLS?
A. Only R4 will be reachable through the VPLS. B All devices will be reachable through the VPLS.
B. R4 and R3 will remain reachable.
C. No devices will be reachable.
Question 5
Which of the following are true when ports are configured with the IEEE 802.3ah Loopback Control feature? (Choose 3)
A. Both ports must still send Information PDUs to avoid going back to discovery mode.
B. Putting a port in loopback does not affect customer data flow
C. The loopback control PDU instructs the remote port to enter loopback mode.
D. Both ports must rediscover the OAM capabilities of each other once the port is put back into service.
E. All packets, exceptfor information PDUs,are looped back.
F. When a port is in loopback mode, service mirroring will still work if it is a mirror-source or mirror-destination.
Solutions:
| Question 1 Answer: B,D,E | Question 2 Answer: D | Question 3 Answer: E | Question 4 Answer: A | Question 5 Answer: A,C,E |
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