A user reported a failure to receive emails through the email client. Which of the following are possible causes? (Multiple Choice)

• A.The email server is faulty.
• B.The user does not have the required rights.
• C.The link is faulty.
• D.The client settings are incorrect.

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Which of the following events represent the end of the network planning stage?

• A.Bid release
• B.Contract signing
• C.Preliminary project acceptance
• D.Project initiation

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Which of the following is not a preliminary preparation for the dry cutover plan?

• A.Risk assessment
• B.Cutover target
• C.Overview of the live network
• D.On-site defense

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On a Layer 2 switching network devices forward data based on MAC addresses. Therefore, data filtering can be performed based on MAC addresses, and a firewall in transparent cannot filter out Layer 3 information in data packets.

• A.FALSE
• B.TRUE

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Which of the following aspects should be considered for migration risk assessment?

• A.Loss caused by risks
• B.Risk impact scope
• C.Risk impact time
• D.Key risk positions

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