at HuaweiSDSecIn the solution, which layer of equipment does the firewall belong to?

• A.Monitoring layer
• B.executive layer
• C.Analysis layer
• D.control layer

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Please sort from large to small according to the table processing priority of iptables.[fill in the blank]*

Correct Answer:

raw.mangle nat.filter

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Which items are the encryption techniques used by digital envelopes? (Multiple Choice)

• A.Asymmetric encryption algorithm
• B.Flow encryption algorithm
• C.Hash algorithm
• D.Symmetrical encryption algorithm

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Regarding NAT technology, which of the following descriptions is correct?

• A.NAT reduces the difficulty of network monitoring
• B.NAT can hide more intranet IP addresses
• C.The internal network server of the NAT network cannot be accessed by external network users.
  Therefore, if a server that needs to provide external services is deployed, be sure to assign an independent public network address to the server.
• D.NAT technology can only achieve one-to-one address conversion, but cannot achieve address multiplexing

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When an information security incident occurs, give priority to using ______ emergency response to provide technical support to customers [fill in the blank]*

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