H12-223 무료 덤프문제 온라인 액세스

Which of the following work is not prepared before the migration?

• A.Expenses
• B.Tools
• C.Software test
• D.Hardware test

Which of the following statements regarding the device software upgrade feasibility is true?

• A.To ensure the stable running of network devices, you are advised to upgrade the device software in a timely manner.
• B.Generally, the device software upgrade does not affect the stable network running. Therefore, risk assessment and avoidance are not required before the upgrade.
• C.Before performing a major upgrade or complex upgrade operations, you need to conduct commissioning and test the upgrade plan and contingency plan in the simulation environment.
• D.The upgrade only causes service interruption for a very short time. Therefore, you do not need to confirm with the customer about the upgrade, improving efficiency.

In most cases, optical power is expressed in dBm. Which of the following values in dBm is supported by most optical transceiver devices to receive and identify data?

• A.30 dBm
• B.-30 dBm
• C.10 dBm
• D.-10 dBm

In the structured network troubleshooting process, troubleshooting results are predictable and the troubleshooting impact is controllable, without generating new risks.

• A.TRUE
• B.FALSE

During unpacking and inspection, the device appearance is intact and all modules work properly after the first power-on. After the device continuously runs for 24 hours, a fault occurs on a card. This situation does not conform to DOA conditions.

• A.TRUE
• B.FALSE