4A0-255 Nokia Advanced Optical Network Design Free Practice Exam Questions (2025 Updated)
Prepare effectively for your Nokia 4A0-255 Nokia Advanced Optical Network Design certification with our extensive collection of free, high-quality practice questions. Each question is designed to mirror the actual exam format and objectives, complete with comprehensive answers and detailed explanations. Our materials are regularly updated for 2025, ensuring you have the most current resources to build confidence and succeed on your first attempt.
Suppose there is a 40 Gbit/s signal which has a symbol rate of Gbaud/s. Which modulation format is being used?
Which of the following can be detected through power monitoring with an Optical Time Domain Reflect meter?
Refer to the exhibit that shows a demand matrix, a network topology with candidate links (in thick bluelinesand dashed lines), the definednetwork in thick blue lines and the demand routing (colored numbers in the figure). Every link is 80 km long. Which of the following requirements is supported by this network design with the displayed demand routing?
Which of the following statements about the Decision (HDEFC) decoding and soft decision FEC (SDFEC) decoding is FALSE?
Consider the exhibit that shows a network design in EPT.
Seven segments are definedsegment lengths are shown in the list below the network map.
3 services are defined each service carries a 10G signal, is protected by diverse path and is router by shorted distance.
Which of the following links is the heavily loaded?
Consider the exhibit that shows a network with a full mesh fiber structure. Link weights indicate the cost. Future services can be requested between any node pair.
Which of the following topology represents a minimum cost design (minimum overall fiber cost) where link failure survivability is ensured?
A)
B)
C)
D)
Consider the exhibit shows the standard 8-step network design process. Suppose that you have used this process to design a Green filed network, which has been commissioned and is in operation. The customer now requests an extension to the network to accommodate more steps and traffic. Which steps are not required when designing such an extension?
What isguardband required for?
What does an OPU tributary slot contain, when multiplexing OTN frames?
Which of the following about the Optical channel Transport Unit (OUT0 in ONT network is correct?
Which of the following statements about the management plane data Communications Network (DCN) is correct?
Consider two EDFA amplifiers in cascade. Each EDFA has an average input signal power of 10 mW and an average noise power of 1 mW. What is the OSNR of the system at the receiver.
