By default, it takes at least 30s for the port status in the STP protocol to change from Disabled to Forwarding.

• A.True
• B.False

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The Router ID of the OSPF process takes effect immediately after modification.

• A.True
• B.False

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SNMPv1 defines 5 protocol operations.

• A.True
• B.False

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Which of the following SNMP packets are sent to the NMS by the Agent on the managed device?

• A.Set-Request
• B.Response
• C.Get-Next-Request
• D.Get-Request

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Link aggregation is a common technology in enterprise networks. Which of the following descriptions are the advantages of link aggregation technology? (Multiple Choice)

• A.Improve reliability
• B.Realize load sharing
• C.Increase bandwidth
• D.Improve safety

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