Free Nokia 4A0-255 Exam Dumps Questions & Answers

Which of the following is NOTan advantage of super-channels?

• A.  Narrower spacing between carries of the super-channel
• B.  Improved spectral efficiency
• C.  Simplified management of the carriers
• D.  Impairment-free transmission

Consider the exhibit showing the schematic for an NE ina deployed optical network. Thetraffic growth forecast is for the use of 40 channels in 3 years. The customer needs to reduce thespace for the shelf. Among the following, which additional input is NOT necessary to meet these specific requirements?

• A.  Mean time to repair for the equipment
• B.  Power supply
• C.  Rack size
• D.  Expected traffic added-dropped at the site

Which of the following can be detected through power monitoring with an Optical Time Domain Reflect meter?

• A.  Hacking of L1 encryption
• B.  Intrusions in the cryptographic keys
• C.  Intrusions on fibers
• D.  Power injection one channel

Consider the exhibit that shows a link power budget diagram. Which of the following is represented at location 2?

• A.  Power range
• B.  System aging margin
• C.  Minimum attenuation
• D.  OSNR margin

Which of the following statements about GMPLS features is FALSE?

• A.  GMPLS is able to automatically provision the optical channels.
• B.  GMPLS is able to compute the routing of the optical channels.
• C.  GMPLS is able to manage the optical network through the DCN.
• D.  GMPLS is able to control OTN networks.