The power MSTP network is a client-side network based on OTN network networking.

• A.TRUE
• B.FALSE

Comment: *

Name: *

Email: *

Verification: *

In the radio and television county and township solution, OSN 1800V products and OSN 1800II enhanced service boards cannot be universally used.

• A.FALSE
• B.TRUE

Comment: *

Name: *

Email: *

Verification: *

Which of the railway business's description of network security and reliability requirements is wrong?

• A.E1 services go on the TDM plane, and IP services go on the packet plane. The encapsulation and forwarding efficiencies of the two types of services are optimal.
• B.Business interfaces tend to be IP-based, so business physical isolation is no longer required
• C.TDM service and Ethernet service use different hard pipes for physical isolation
• D.Service isolation between different Ethernet subsystems through ODUk physical pipes

Comment: *

Name: *

Email: *

Verification: *

The full-light video is circulated, and there are super high requirements for environment and temperature, which can be selected?

• A.EG8040C
• B.EG8084P
• C.P622E
• D.T672E

Comment: *

Name: *

Email: *

Verification: *

Which industry has a multi-data center interconnection scenario? (Multiple choice)

• A.Electricity
• B.Internet
• C.Transportation
• D.Finance

Comment: *

Name: *

Email: *

Verification: *