H31-341_V2.5 무료 덤프문제 온라인 액세스

After a device is powered on, what need to be checked on subrack fans? (Choose all that apply.)

• A.The airflows through the upper and lower parts of the subrack.
• B.The PWR indicator on the subrack is steady on.
• C.The fans have been started.
• D.The FAN indicator on the fan tray assembly is steady green.

Which of the following statements about the TMK1UNS5 board is false?

• A.It supports hybrid transmission of ODU0, ODU1, ODU2, ODU2e, ODU3, ODU4, and ODUflex signals.
• B.It is a universal line board that supports hybrid transmission of OTN, SDH, and packet services.
• C.It supports the transmission of OTN services with a total bandwidth of not higher than 200 Gbit/s.
• D.It supports regeneration mode, which can be used at an electrical regeneration site in the system to implement the electrical regeneration of corresponding optical signals.

The decrease of optical power when light passes through a passive optical component is called the____.
(Enter only letters.)

Which of the following statements about user side interfaces and network-side interfaces of E-Line services are true?

• A.User-side interfaces are Layer 2 ports, and network-side interfaces are Layer 3 ports.
• B.User-side interfaces are NNIs, and network-side interfaces are UNIs.
• C.User-side interfaces are UNIs, and network-side interfaces are NNIs.
• D.User-side Interfaces are Layer 3 ports, and network side Interfaces are Layer 7 ports.

In the electrical-layer structure of OTN, which of the following Is the path layer sequence from the signal input on the WDM side to the signal output on the client side?

• A.OTUk -> ODUk - > OPUk -> Client
• B.OTUk -> OPUk -> ODUk -> Client
• C.Client -> ODUk -> OPUk -> OTUk
• D.Client -> OPUk -> ODUk -> OTUk