What is a Shared Risk Group (SRG)?
A. A set of fibers that share the same latency risk
B. A set of nodes that share a common risk of hardware failure
C. A set of network resources that share a common failure risk
D. A set of boards that share the same failure risk
正解:C
解説: (Pass4Test メンバーにのみ表示されます)
質問 2:
Which statement is correct about node synchronization?
A. Full synchronization retrieves all items from the node (NE parameters. Ports, Alarms, Internal Links, etc)
B. Full synchronization retrieves the correlated alarms from the node
C. Node synchronization is executed to test the reachability of a node
D. Node synchronization is executed to align the time of the node to the time of the NFM-T platform
正解:A
解説: (Pass4Test メンバーにのみ表示されます)
質問 3:
Which of the following statements is true about chromatic dispersion (CD)?
A. The fiber attenuation changes along the fiber, and when the light crosses these differences the CD takes place.
B. The fiber attenuation introduces inter-channel interference.
C. Different wavelengths propagate at different speeds within the same media and therefore different colors travel in the fiber with different speed.
D. Different channels have different bandwidth and this causes different CD performances.
正解:C
解説: (Pass4Test メンバーにのみ表示されます)
質問 4:
Which of the following is an example of optical protection mechanism?
A. OSNCP (e.g., via Y-cable or OPS card)
B. GR and SBR combined
C. GMPLS-enabled SBR
D. Optical regeneration (e.g., back-to-back regeneration)
正解:A
解説: (Pass4Test メンバーにのみ表示されます)
Akamatsu -
予備知識ゼロでも24時間の勉強で合格できた! Pass4Testさんほんとうにありがとうございます!!