PTN equipment realizes the unified bearing of multiple services through PWE3. For users, the PTN equipment is equivalent to a Layer 2 switch at this time.

• A.TRUE
• B.FALSE

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The two MSP rings intersect, and one of the network elements at the intersection point has the coexistence of SNCP and MSP protection. How can I solve the secondary switching phenomenon due to the coexistence of protection?

• A.No need to set a delay time
• B.Set delay time when configuring SNCP cross connection
• C.It is necessary to set the delay time when configuring MSP and SNCP
• D.Set the delay time when configuring the MSP cross-connect

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Swap antennas is to align the main lobes of the antennas at both ends to each other, and the signal strength of the opposite antenna is the largest.

• A.FALSE
• B.TRUE

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After which of the following steps, the rollback operation can no longer be performed

• A.Submit
• B.Load
• C.Distribution
• D.Activate

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In the process of creating an upgrade task, the following statement is wrong

• A.For gateway network elements, if you check the "If the network element to be loaded is a gateway network element, it is mandatory to select FTP/SFTP protocol loading" configuration item, you need to configure an FTP/SFTP server on the network management server to improve the loading speed.
• B.The upgrade operator must use the "admin" level user for the health check, otherwise some check items will fail to execute and reduce the check efficiency.
• C.Check "Adopt package customization. The software added by the user is a partial package, that is, matching according to the single board on the network element can improve the efficiency of adding."
• D."Forced Parallel Activation". In this activation mode, all groups are activated in parallel, which will cause business interruption.

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